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Concentric reducer

A concentric reducer is used to join pipe sections or tube sections on the same axis. A concentric Reducer is also called welded concentric coupling. It allows for connecting a large pipe to a smaller pipe by means of welding. A concentric reducer allows welded connection between two pipes with the same center line.

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Description

A concentric reducer is used to join pipe sections or tube sections on the same axis. A concentric Reducer is also called welded concentric coupling. It allows for connecting a large pipe to a smaller pipe by means of welding. A concentric reducer allows welded connection between two pipes with the same center line.

Concentric reducer is a kind of fitting that be used for reducing piping size. Concentric reducer is most commonly used and often eccentric reducer used in piping in about pump and pipe rack area.

These reducers are used in various applications that involved in high pressure, vibration & temperature. These reducers are widely used in chemical, petroleum, shipbuilding, gas, power sectors.

Carbon Steel Reducers with A234 WPB and 1/2 to 56-inch Size (DN15 to DN1400)

What is a concentric reducer?

A concentric reducer is a round reducer in which the center line remains the same,like a bell. So, anytime you are piping and you need the center to remain constant a concentric is the right choice. the other type is called an ecentric.

Concentric Reducer vs Eccentric Reducer Differences

Concentric reducers are widely used while eccentric reducers are applied to maintain the top and bottom pipe level. Eccentric Reducers also avoids trapping of air inside the pipe, and Concentric Reducer removes noise pollution.

Manufacturing Process of Steel Pipe Reducer

There are versatile manufacturing processes for the reducers. These are made of welded pipes with the required filling material. However, EFW and ERW pipes cannot use the reducer. To manufacture forged parts, different kinds of methods are used including cold and hot forming processes. It includes the ‘Outer Die Method.’

Outer Dia Method

It is the most common method for manufacturing the steel pipe reducer. The pipe is cut and pressed in the outer die whereas, one end of the pipe is compressed into the smaller size. This method is fit for manufacturing small and medium-size reducers.

Connection Types of Pipe Reducer

Ranges from different connection types, pipe reducer could be classified with socket weld reducer and butt weld reducer.

Socket Weld Reducer vs Butt Weld Reducer

Socket weld reducer also called socket weld insert, it has three types 1, 2 and 3. Manufacturing standards comply to ASME B16.11.

The Socket Weld resists ½ of the strength of butt welding, so it is used for small-diameter pipes possessing a diameter of NPS 2 or less. Butt Weld has good strength, as it is suitable for high pressure and temperature pipelines.

Butt weld reducer ends in plan or beveled, manufactured in accordance with ASME B16.9 and welding process according ASME B16.25.

Pipe Reducer Material Types

  • Carbon Steel Reducer vs Stainless Steel Reducer
    The reducers can be made of Carbon Steel, Alloy, or Stainless steel and much more. In comparison to the Stainless Steel Reducer, Carbon Steel Reducer possesses high-pressure resistance, higher strength, and wear resistant but this can be easily corroded.
  • Carbon Steel Reducer material standards and grades
    A234 WPB, A420 WPL6, MSS-SP-75 WPHY 42, 46, 52, 56, 60, 65 and 70.
  • For Stainless Steel Reducer
    ASTM A403 WP 304, 304L, A403, 316, 316L, 317, 317L, 321, 310 and 904L, etc.
  • For Alloy Pipe Reducer
    A234 WP1, WP5, WP9, WP11, WP22, WP91 etc.

We supply steel pipe reducer with below ranges

  • Standard: ASME B16.9, DIN2615, JIS B2312, ASME B16.11
  • Material: Carbon Steel ASTM A234 WPB,
  • Alloy Steel ASTM A234 WP1, WP5, WP9, WP11, WP22
  • Stainless Steel ASTM A403 304/316
  • Types: Equal and Reducing
  • Size Range: 1/2”x1/2”x1/4”-20”x20”x8”
  • Wall thickness: Sch10, Sch40, Sch80
  • Pressure Rations: 3000#, 6000#, 9000#
  • Coating: Black Paint, Galvanized

Standard

Pipe fitting dimensions are in either metric or Standard English. Because pipe fitting covers Pipe Fitting Dimensions several aspects, only the most common pipe fitting sizes can be given here. The most applied version is the 90° long radius and the 45° elbow, while the 90° short radius elbow is applied if there is too little space. The function of a 180° elbow is to change direction of flow through 180°. Both, the LR and the SR types have a center to center dimension double the matching 90° elbows. These fittings will generally be used in furnesses or other heating or cooling units.

Some of the standards that apply to buttwelded fittings are listed below. Many organizations such as ASME, ASTM, ISO, MSS, etc. have very well developed standards and specifications for buttwelded fittings. It is always up to the designer to ensure that they are following the applicable standard and company specification, if available, during the design process.

Some widely used pipe fitting standards are as follows:

ASME: American Society for Mechanical Engineers
This is one of the reputed organizations in the world developing codes and standards.
The schedule number for pipe fitting starts from ASME/ANSI B16. The various classifications of ASME/ANSI B16 standards for different pipe fittings are as follows:

  • ASME/ANSI B16.1 – 1998 – Cast Iron Pipe Flanges and Flanged Fittings
  • ASME/ANSI B16.3 – 1998 – Malleable Iron Threaded Fittings
  • ASME/ANSI B16.4 – 1998 – Cast Iron Threaded Fittings
  • ASME/ANSI B16.5 – 1996 – Pipe Flanges and Flanged Fittings
  • ASME/ANSI B16.11 – 2001 – Forged Steel Fittings, Socket-Welding and Threaded
  • ASME/ANSI B16.14 – 1991 – Ferrous Pipe Plugs, Bushings and Locknuts with Pipe Threads
  • ASME/ANSI B16.15 – 1985 (R1994) – Cast Bronze Threaded Fittings
  • ASME/ANSI B16.25 – 1997 – Buttwelding Ends
  • ASME/ANSI B16.36 – 1996 – Orifice Flanges etc.

ASTM International: American Society for Testing and Materials
This is one of the largest voluntary standards development organizations in the world. It was originally known as the American Society for Testing and Materials (ASTM).

  • ASTM A105 / A105M – Specification for Carbon Steel Forgings for Piping Applications
  • ASTM A234 / A234M – Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
  • ASTM A403 / A403M – Specification for Wrought Austenitic Stainless Steel Piping Fittings
  • ASTM A420 / A420M – Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service

AWWA: American Water Works Association

AWWA About – Established in 1881, the American Water Works Association is the largest nonprofit, scientific and educational association dedicated to managing and treating water, the world’s most important resource.

  • AWWA C110 – Ductile-Iron and Gray-Iron Fittings, 3 Inch Through 48 Inch (75 mm Through 1200 mm), for Water and Other Liquids
  • AWWA C208 – Dimensions for Fabricated Steel Water Pipe Fittings

ANSI: The American National Standards Institute

ANSI is a private, non-profit organization. Its main function is to administer and coordinate the U.S. voluntary standardization and conformity assessment system. It provides a forum for development of American national standards. ANSI assigns “schedule numbers”. These numbers classify wall thicknesses for different pressure uses.

MSS STANDARDS: Manufacturers Standardization Society
The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and international codes and standards for: Valves, Valve Actuators, Valve Modification, Pipe Fittings, Pipe Hangers, Pipe Supports, Flanges and Associated Seals

  • MSS SP-43 – Wrought Stainless Steel Butt-Welding Fittings Including Reference to Other Corrosion Resistant Materials
  • MSS SP-75 – Specifications for High Test Wrought Buttwelding Fittings
  • MSS SP-73 – Brazing Joints for Copper and Copper Alloy Pressure Fittings
  • MSS SP-83 – Class 3000 Steel Pipe Unions, Socket-Welding and Threaded
  • MSS SP-97 – Integrally Reinforced Forged Branch Outlet Fittings — Socket Welding, Threaded, and Buttwelding Ends
  • MSS SP-106 – Cast Copper Alloy Flanges and Flanged Fittings Class 125,150, and 300
  • MSS SP-119 – Factory-Made Wrought Belled End Socket Welding Fittings

Difference between “Standard” and “Codes”:

Piping codes imply the requirements of design, fabrication, use of materials, tests and inspection of various pipe and piping system. It has a limited jurisdiction defined by the code. On the other hand, piping standards imply application design and construction rules and requirements for pipe fittings like adapters, flanges, sleeves, elbows, union, tees, valves etc. Like a code, it also has a limited scope defined by the standard.

Factors affecting standards: “Standards” on pipe fittings are based on certain factors like as follows:

  • Pressure-temperature ratings
  • Size
  • Design
  • Coatings
  • Materials
  • Marking
  • End connections
  • Dimensions and tolerances
  • Threading
  • Pattern taper etc.

BSP: British Standard Pipe

BSP is the U.K. standard for pipe fittings. This refers to a family of standard screw thread types for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread. This has been adopted internationally. It is also known as British Standard Pipe Taper threads (BSPT )or British Standard Pipe Parallel (Straight) threads (BSPP ). While the BSPT achieves pressure tight joints by the threads alone, the BSPP requires a sealing ring.

JIS: Japanese Industrial Standards

This is the Japanese industrial standards or the standards used for industrial activities in Japan for pipe, tube and fittings and published through Japanese Standards Associations.

NPT: National Pipe Thread

National Pipe Thread is a U.S. standard straight (NPS) threads or for tapered (NPT) threads. This is the most popular US standard for pipe fittings. NPT fittings are based on the internal diameter (ID) of the pipe fitting.

BOLTS & NUTS

We are manufacturer of Flange bolts & Nuts and supply high quality

  • A193 = This specification covers alloy and stainless steel bolting material for pressure vessels, Valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
  • A320 = Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service.
  • A194 = Standard specification for nuts in many different material types.

AN: Here, “A” stands for Army and “N” stands for Navy

The AN standard was originally designed for the U.S. Military. Whenever, a pipe fitting is AN fittings, it means that the fittings are measured on the outside diameter of the fittings, that is, in 1/16 inch increments.

For example, an AN 4 fitting means a fitting with an external diameter of approximately 4/16″ or ¼”. It is to be noted that approximation is important because AN external diameter is not a direct fit with an equivalent NPT thread.

Dash (-) size

Dash size is the standard used to refer to the inside diameter of a hose. This indicates the size by a two digit number which represents the relative ID in sixteenths of an inch. This is also used interchangeably with AN fittings. For example, a Dash “8” fitting means an AN 8 fitting.

ISO: International Organization for Standardization

ISO is the industrial pipe, tube and fittings standards and specifications from the International Organization for Standardization. ISO standards are numbered. They have format as follows:

“ISO[/IEC] [IS] nnnnn[:yyyy] Title” where

  • nnnnn: standard number
  • yyyy: year published, and
  • Title: describes the subject

How are pipe fittings measured?

Pipe fittings are measured by their diameter, wall thickness (known as “schedule”), and shape or configuration. (Fittings are also defined by their material grade and whether they are welded or seamless.)

Diameter refers to outside diameter of a pipe or fitting.

The North American standard is known as Nominal Pipe Size (NPS). The International Standard is known as Diameter Nominal (DN). Pipes and fittings are actually made in similar sizes around the world: they are just labeled differently.

From ½ in to 12 inch “Nominal Pipe Size”, outside diameters are slightly larger than indicated size; inside diameters get smaller as schedules grow.

From 14 in and larger “Nominal Pipe Size”, outside diameters are exactly as indicated size; inside diameters get smaller as schedules grow.
As with other North American standards (inch, foot, yard, mile, …), many pipe standards (diameters up to 12 inch and wall thickness) are based on historical precedents (a toolmaker’s dies during US Civil War) rather than a “scientific” method.

Schedule Numbers

The schedule numbers are used by the ANSI (American National Standards Institute) to denote wall thickness. The schedule numbers encompass all pipe dimensions beginning at NPS 1/8” up NPS 36”. Note that this configuration is only for fittings that match with a particular ANSI schedule number.

Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures.

  • Schedule, often shortened as sch, is a North American standard that refers to wall thickness of a pipe or pipe fitting. Higher schedules mean thicker walls that can resist higher pressures.
  • Pipe standards define these wall thicknesses: SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS and XXS. (S following a number is for stainless steel. Sizes without an S are for carbon steel.)
  • Higher schedules are heavier, require more material and are therefore more costly to make and install.

What does “schedule” mean for pipe fittings?

Schedule, often shortened as SCH, is a North American standard that refers to wall thickness of a pipe or pipe fitting.

What is schedule 40, SCH80?

Higher schedules mean thicker walls that can resist higher pressures.

Pipe standards define these wall thicknesses: SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS and XXS.
(S following a number is for stainless steel. Sizes without an S are for carbon steel.)

Higher schedules are heavier, require more material and are therefore more costly to make and install.

General standard

StandardSpecification
ASTM A234Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A420Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
ASTM A234 WPBASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services. WPB is one of the steel grade in this standard
ASME B16.9ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200).
ASME B16.28ASME B16.28 Standard covers ratings, overall dimensions, testing, tolerances, and markings for wrought carbon and alloy steel buttwelding short radius elbows and returns.
MSS SP-97MSS SP-97 Standard Practice covers essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements for 90 degree integrally reinforced forged branch outlet fittings of buttwelding, socket welding, and threaded types.
ASTM A403Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings.

Wide variety for all areas of application

DINENASME
St 35.8 I
St 35.8 III
15 Mo 3
13 CrMo 4 4
10 CrMo 9 10
St 35 N
St 52.0
St 52.4
P235GH-TC1
P235GH-TC2
16Mo3
13CrMo4-5
10CrMo9-10
X10CrMoVNb9-1
P215NL
P265NL
L360NB
L360NE
P355N
P355NL1
P355NH
WPB
WPL6
WPL3
WPHY 52
WP11
WP22
WP5
WP9
WP91
WP92

ASTM A234

ASTM A234/ASME SA234M standard specification for piping fittings of wrought carbon steel and alloy steel for moderate and high temperature service.

Chemical Composition (%) of ASTM A234/A234M

GradeTypeCSiSPMnCrNiMoOtheróbósδ5
WPB0.30.1min0.0580.050.29-1.060.40.40.15V:0.06;Nb:0.02415-58524022197
WPC0.350.1min0.0580.050.29-1.060.40.40.15V:0.06;Nb:0.02485-65527522197
WP10.280.1-0.50.0450.0450.3-0.90.44-0.65380-55020522197
WP12 CL10.05-0.20.60.0450.0450.3-0.80.8-1.250.44-0.65415-58522022197
WP12 CL20.05-0.20.60.0450.0450.3-0.80.8-1.250.44-0.65485-65527522197
WP11 CL10.05-0.150.5-10.030.030.3-0.61-1.50.44-0.65415-58520522197
WP11 CL20.05-0.20.5-10.040.040.3-0.81-1.50.44-0.65485-65527522197
WP11 CL30.05-0.20.5-10.040.040.3-0.81-1.50.44-0.65520-69031022197
WP22 CL10.05-0.150.50.040.040.3-0.61.9-2.60.87-1.13415-58520522197
WP22 CL30.05-0.150.50.040.040.3-0.61.9-2.60.87-1.13520-69031022197
WP5 CL10.150.50.030.040.3-0.64-60.44-0.65415-58520522217
WP5 CL30.150.50.030.040.3-0.64-60.44-0.65520-69031022217
WP9 CL10.1510.030.030.3-0.68-100.9-1.1415-58520522217
WP9 CL30.1510.030.030.3-0.68-100.9-1.1520-69031022217
WPR0.20.050.0450.4-1.061.6-2.24435-60531522/28217
WP910.08-0.120.2-0.50.010.020.3-0.68-9.50.40.85-1.05See sdandard585-76041520248
WP9110.09-0.130.1-0.50.010.020.3-0.68.5-10.50.40.9-1.1See sdandard620-84044020248
Notes:

For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.
The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
The sum of Cr and Mo shall not exceed 0.32%.
The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

Mechanical properties of ASTM A234

Tensile RequirementsWPBWPC, WP11CL2WP11CL1 WP11CL3
Tensile Strength, min, ksi[MPa]
(0.2% offset or 0.5% extension-under-load)
60-85
[415-585]
70-95
[485-655]
60-85
[415-585]
 75-100
[520-690]
Yield Strength, min, ksi[MPa]32
[240]
40
[275]
30
[205]
45
[310]

ASTM A403

ASTM A403 Standard specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications.

Chemical Composition (%) of ASTM A403

Steel No.TypeCSiSPMnCrNiMoOtheróbósδ5
WP3040.0810.030.045218-208-1151520528
WP304H0.04-0.110.030.045218-208-1151520528
WP304L0.03510.030.045218-208-1348517028
WP304LN0.030.750.030.045218-208-10.5N2:0.1-0.1651520528
WP304N0.080.750.030.045218-208-11N2:0.1-0.1655024028
WP3090.1510.030.045222-2412-1551520528
WP3100.151.50.030.045224-2619-2251520528
WP3160.0810.030.045216-1810-142-351520528
WP316H0.04-0.110.030.045216-1810-142-351520528
WP316LN0.030.750.030.045216-1811-142-3N2:0.1-0.1651520528
WP316L0.03510.030.045216-1810-162-348517028
WP316N0.080.750.030.045216-1811-142-3N2:0.1-0.1655024028
WP3170.0810.030.045218-2011-153-451520528
WP317L0.0310.030.045218-2011-153-451520528
WP3210.0810.030.045217-209-13Ti:5C-0.751520528
WP321H0.04-0.110.030.045217-209-13Ti:4C-0.751520528
WP3470.0810.030.045217-209-13Nb+Ta:10C-1.151520528
WP347H0.04-0.110.030.045217-209-13Nb+Ta:8C-151520528
WP3480.0810.030.045217-209-13Ta:0.151520528
WP348H0.04-0.110.030.045217-209-13Ta:0.151520528
Notes:

For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.
The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
The sum of Cr and Mo shall not exceed 0.32%.
The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

Mechanical properties of ASTM A403

GradeUNSTensile Strength, minYield Strength,minElongation min % in 4D
ksiMPaksiMPaLongit %Trans%
ALLALL75515302052820
304LS3040370485251702820
316LS3160370485251702820
304NS3045180550352402820
316NS3165180550352402820
S3172680550352402820
XM-19S20910100690553802820
S3125494-119650-820443002820
S34565115795604152820
S3322873500271852820

Material Furnished to this specification shall conform to the requirements of specifications A960/A960M including any supplementary requirements that are indicates in the purchase order. Failure to company with the common requirements of Specification A960/A960M constitutes non-conformance with this specification . In case of conflict between this specification and Specification A960/A960M , this specification shall prevail.

ASTM A420

ASTM A420/A420M-07 standard specification for piping fittings of wrought carbon steel and alloy steel for low-temperature service.

ASTM A420 Chemical Composition Requirements

ElementsWPL6, %WPL9, %WPL3, %WPL8, %
Carbon [C]≤0.30≤0.20≤0.20≤0.13
Manganese [Mn]0.50-1.350.40-1.060.31-0.64≤0.90
Phosphorus [P]≤0.035≤0.030≤0.05≤0.030
Sulfur [S]≤0.040≤0.030≤0.05≤0.030
Silicon [Si]0.15-0.400.13-0.370.13-0.37
Nickel [Ni]≤0.401.60-2.243.2-3.88.4-9.6
Chromium [Cr]≤0.30.........
Molybdenum [Mo]≤0.12.........
Copper [Cu]≤0.400.75-1.25
Columbium [Cb]≤0.02.........
Vanadium[V]≤0.08.........
*For grade WPL6, the limit for Columbium may be increased up to 0.05% on heat analysis and 0.06% on product analysis.
*Fittings of WPL3 made from plate or forgings may have 0.90 % max manganese.
*Fittings of WPL8 made from plate may have 0.98 % max manganese.

ASTM A420 Mechanical Properties

ASTM A420/ A420MTensile Strength, min.Yield Strength, min.Elongation %, min
GradeksiMPaksiMPaLongitudinalTransverse
WPL665-95415-655352402212
WPL963-88435-6104631520
WPL365-90450-620352402214
WPL8100-125690-8657551516
*All the elongation values are on the basis of standard round specimen, or small proportional specimen, min % in 4 D.

ASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services.

ASME B16.9

ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200).

ASME / ANSI B16.9 dimension

NominalOutside Diameter90° Elbows45° Elbows180° Returns
Pipe Size
Long RadiusShort RadiusLong RadiusLong Radius
(inches)(mm)(inches)Center to FaceCenter to FaceCenter to FaceRadiusCenter to CenterBack to face
(inches)(inches)(inches)(inches)(inches)(inches)
1/221.30.841.55/821.875
3/426.71.051.1257/162.251.6875
133.41.3151.517/832.1875
1.2542.21.661.8751.2513.752.75
1.548.31.92.251.51.12534.53.25
260.32.375321.375464.1875
2.5732.8753.752.51.7557.55.1875
388.93.54.532696.25
3.5101.645.253.52.25710.57.25
4114.34.5642.58128.25
5141.35.5637.553.125101510.3125
6168.36.625963.75121812.3125
8219.18.6251285122416.3125
10273.110.7515106.25153020.375
12323.912.7518127.5183624.375

Tolerances of Welded Fittings

NOMINAL PIPE SIZE NPSANGULARITY TOLERANCESANGULARITY TOLERANCES
SizeOff Angle QOff Plane P
½ to 40.030.06
5 to 80.060.12
10 to 120.090.19
14 to 160.090.25
18 to 240.120.38
26 to 300.190.38
32 to 420.190.5
44 to 480.180.75
All dimensions are given in inches. Tolerances are equal plus and minus except as noted.
1. Out-of-round is the sum of absolute values of plus and minus tolerance.
2. This tolerance may not apply in localized areas of formed fittings where increased wall thickness is required to meet design requirements of ASME B16.9.
3. The inside diameter and the nominal wall thicknesses at ends are to be specified by the purchaser.
4. Unless otherwise specified by the purchaser, these tolerances apply to the nominal inside diameter, which equals the difference between the nominal outside diameter and twice the nominal wall thickness.

MSS SP-97

MSS SP-97 Standard Practice covers essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements for 90 degree integrally reinforced forged branch outlet fittings of buttwelding, socket welding, and threaded types.

Buttwelding Ends

Nominal wall Thickness : tEnd Preparation
t<5mm (for austenitic alloy steel t<4mm)Cut square or slightly chamfer at manufacturer ‘ s option
5Plain Bevel as in sketch ( a ) above
t>22mmCompound Bevel as in sketch ( b ) above

Chemical Composition Requirements of MSS SP 75

ElementsValue, %
Carbon (C)≤0.30
Manganese (Mn)≤1.60
Phosphorus (P)≤0.035
Sulfur (S)≤0.035
Copper (Cu)≤0.50
Nickel (Ni)≤0.50
Silicon (Si)≤0.50
Chromium (Cr)≤0.25
Molybdenum (Mo)≤0.13
Vanadium (V)≤0.13
Columbium (Cb)≤0.10
Titanium(Ti)≤0.05
*1. The sum of Cu, Ni, Cr and Mo shall not exceed 1%.
*2. Carbon equivalent C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 shall not exceed 0.45%.

Manufacturing Standards of Buttweld Pipe End, Buttweld Pipe Cap

  • ASME: ANSI B16.9, ANSI B16.28, MSS-SP-43
  • DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
  • EN: EN10253-1, EN10253-2
  • ASTM A403 – ASME SA403 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
  • ASME B16.9 Factory-Made Wrought Fittings Buttwelding
  • ASME B16.25 Buttwelding Ends
  • ASME B16.28 Wrought Steel Short Radius Elbows and Buttwelding Returns
  • MSS SP-43 Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications

Buttweld Pipe End Material Grades

  • Stainless Steel Pipe Cap ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
  • Carbon Steel Pipe Cap ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
  • Low Temperature Carbon Steel Pipe Cap ASTM A420 WPL3, A420 WPL6
  • Alloy Steel Pipe Cap ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
  • Duplex Pipe Cap ASTM A 815, ASME SA 815 UNS NO S31803, S32205. Werkstoff No. 1.4462
  • Nickel Alloy Pipe Cap ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 )

Size

A reducer is the component in a pipeline that reduces the pipe size from a larger to a smaller bore (inner diameter).

Nominal pipeOutside Diameter at BevelCenter to End
DN sizeD1D2End to End
Series ASeries BSeries ASeries B L
20×1526.92521.31838
25×2033.73226.92551
25×1533.73221.31851
32×2542.43833.73251
32×2042.43826.92551
32×1542.43821.31851
40×3248.34542.43864
40×2548.34533.73264
40×2048.34526.72564
40×1548.34521.31864
50×4060.35748.34576
50×3260.35742.43876
50×2560.35733.73276
50×2060.35726.92576
65×5076.1(73)7660.35789
65×4076.1(73)7648.34589
65×3276.1(73)7642.43889
65×2576.1(73)7633.73289
80×6588.98976.1(73)7689
80×5088.98960.35789
80×4088.98948.34589
80×3288.98942.43889
90×80101.6-88.9-102
90×65101.6-76.1(73)-102
90×50101.6-60.3-102
90×40101.6-48.3-102
90×32101.6-42.4-102
100×90114.3108101.6-102
100×80114.310888.989102
100×65114.310876.1(73)76102
100×50114.310860.357102
100×40114.310848.345102
125×100139.7133114.3108127
125×90139.7-101.6-127
125×80139.713388.989127
125×65139.713376.1(73)76127
125×50139.713360.357127
150×125168.3159139.7133140
150×100168.3159114.3108140
150×90168.3-101.6-140
150×80168.315988.989140
150×65168.315976.1(73)76140
200×150219.1219163.8159152
200×125219.1219139.7133152
200×100219.1219114.3108152
200×90219.1-101.6-152
250×200273273219.1219178
250×150273273168.3159178
250×125273273139.7133178
250×100273273114.3108178
300×250323.9325273273203
300×200323.9325219.1219203
300×150323.9325168.3159203
300×125323.9325139.7133203
350×300355.6377323.9325330
350×250355.6377273273330
350×200355.6377219.1219330
350×150355.6377168.3159330
400×350406.4426355.6377356
400×300406.4426323.9325356
400×250406.4426273273356
400×200406.4426219.1219356
450×400457.2478406.4426381
450×350457.2478355.6377381
450×300457.2478323.9325381
450×250457.2478273273381
500×450508529457.2478508
500×400508529406.4426508
500×350508529355.6377508
500×300508529323.9325508
550×500559-508-508
550×450559-457-508
550×400559-406-508
550×350559-356-508
600×550610-559-508
600×500610630508530508
600×450610630457480508
600×400610630406426508
650×600660-610-610
650×550660-559630610
650×500660-508-610
650×450660-457630610
700×650711-660-610
700×600711720310720610
700×550711-559-610
700×500711720508630610
750×700762-711-610
750×650762-660-610
750×600762-610-610
750×550762-559-610
800×750813-762-610
800×700813820711720610
800×650813-660-610
800×600813820610630610
850×800864-813-610
850×750864-762-610
850×700864-711-610
850×650864-660-610
900×850914-864-610
900×800914920813820610
900×750914-762-610
900×700914920711820610
950×900965-914-610
950×850965-864-610
950×800965-813-610
950×750965-762-610
1000×9501016-965-610
1000×90010161020914920610
1000×8501016-864-610
1000×80010161020813920610
1050×10001067-1016-610
1050×9501067-965-610
1050×9001067-914-610
1050×8501067-864-610
1100×10501118-1067-610
1100×10001118112010161020610
1100×9501118-965-610
1100×900111811209141020610
1150×11001168-1118-711
1150×10501168-1067-711
1150×10001168-1016-711
1150×9501168-965-711
1200×11501220-1168-711
1200×11001220122011181120711
1200×10501220-1067-711
1200×10001220122010161120711
Length of reducers
The length of a Reducer is very short in relation to the diameter, so in some dimensions the transition from one to another diameter is very abruptly. For example, a reducer 6″ x 2½” has a length of 140 mm. On this short distance a pipeline will be reduced from 168.3 mm O.D. to 73 mm O.D. During the design phase of a new pipe system, a piping designer certainly must think about it.

ASME B16.9 Butt weld Reducers Dimensions

Size (inches)mmDdH
3/4 x 3/420 x 1526,6721,3438,10
3/4 x 3/820 x 1026,6717,1438,10
1 x 3/425 x 2033,4026,6750,80
1 x 1/225 x 1533,4021,3450,80
1 1/4 x 132 x 2542,1633,4050,80
1 1/4 x 3/432 x 2042,1626,6750,80
1 1/4 x 1/232 x 1542,1621,3450,80
1 1/2 x 1 1/440 x 3248,2642,1663,50
1 1/2 x 140 x 2548,2633,4063,50
1 1/2 x 3/440 x 2048,2626,6763,50
1 1/2 x 1/240 x 1548,2621,3463,50
2 x 1 1/250 x 4060,3248,2676,20
2 x 1 1/450 x 3260,3242,1676,20
2 x 150 x 2560,3233,4076,20
2 x 3/450 x 2060,3226,6776,20
2 1/2 x 265 x 5073,0260,3288,90
2 1/2 x 1 1/265 x 4073,0248,2688,90
2 1/2 x 1 1/465 x 3273,0242,1688,90
2 1/2 x165 x 2573,0233,4088,90
3 x 2 1/280 x 6588,9073,0288,90
3 x 280 x 5088,9060,3288,90
3 x 1 1/280 x 4088,9048,2688,90
3 x 1 1/480 x 3288,9042,1688,90
3 1/2 x 390 x 80101,6088,90101.6
3 1/2 x 2 1/290 x 65101,6073,02101.6
3 1/2 x 290 x 50101,6060,32101.6
3 1/2 x 1 1/290 x 40101,6048,26101.6
3 1/2 x 1 1/490 x 32101,6042,16101.6
4 x 3 1/2100 x 90114,3073,02101.6
4 x 3100 x 80114,3088,90101.6
4 x 2 1/2100 x 65114,3073,02101.6
4 x 2100 x 50114,3060,32101.6
4 x 1 1/2100 x 40114,3048,26101.6
5 x 4125 x 100141,30114,30127,00
5 x 3 1/2125 x 90141,30101,60127,00
5 x 3125 x 80141,3088,90127,00
5 x 2 1/2125 x 65141,3073,02127,00
5 x 2125 x 50141,3060,32127,00
6 x 5150 x 125168,27141,30139,7
6 x 4150 x 100168,27114,30139,7
6 x 1/2150 x 90168,27101,60139,7
6 x 3150 x 80168,2788,90139,7
6 x 1/2150 x 65168,2773,02139,7
8 x 6200 x 150219,07168,27152,4
8 x 5200 x 125219,07141,30152,4
8 x 4200 x 100219,07114,30152,4
8 x 3 1/2200 x 90219,07101,60152,4
10 x 8250 x 200273,05219,07177,8
10 x 6250 x 150273,05168,27177,8
10 x 5250 x 125273,05141,30177,8
10 x 4250 x 100273,05114,30177,8
12 x 10300 x 250323,85273,05203,2
12 x 8300 x 200323,85219,07203,2
12 x 6300 x 150323,85168,27203,2
12 x 5300 x 125323,85141,30203,2
14 x 12350 x 300355,60323,85330,2
14 x 10350 x 250355,60273,05330,2
14 x 8350 x 200355,60219,07330,2
14 x 6350 x 150355,60168,27330,2
16 x 14400 x 350406,40355,60355,6
16 x 12400 x 300406,40323,85355,6
16 x 10400 x 250406,40273,05355,6
16 x 8400 x 200406,40219,07355,6
18 x 16450 x 400457,20406,40381,0
18 x 14450 x 350457,20355,60381,0
18 x 12450 x 300457,20323,85381,0
18 x 10450 x 250457,20273,05381,0
20 x 18500 x 450508,00457,20508,0
20 x 16500 x 400508,00406,40508,0
20 x 14500 x 350508,00355,60508,0
20 x 12500 x 300508,00323,85508,0
22 x 20550 x 500558,80508,00508,0
22 x 18550 x 450558,80457,20508,0
22 x 16550 x 400558,80406,40508,0
22 x 14550 x 350558,80355,60508,0
24 x 22600 x 550609,6558,80508,0
24 x 20600 x 500609,6508,00508,0
24 x 18600 x 450609,6457,20508,0
24 x 16600 x 400609,6406,40508,0
Dimension in mm.

ASME B16.9 Butt weld reducers dimensions tolerances

Nominal Pipe Size (NPS)Outside Ø at BevelInside Ø at EndWall Thickness
t / t1
Overall Length
H
1/2 a 2 1/210,8Not2
3 a 3 1/211,6less2
411,6than2
5 a 621,687,50%2
821,6of nominal2
1013,2tickness2
12 a 18+4 -33,23
20 a 24+6 -54,83
26 a 3024,83
32 a 4824,85
Dimensional tolerances - reducers

ASME B16.9 Butt weld Reducers Weights

NPSREDUCERS*
inchesSch.Sch.Sch.Sch.
5S10S40S80S
0.040.040.050.06
0.10.10.140.18
10.120.120.160.22
1.250.180.180.220.27
1.50.210.210.280.33
20.30.30.40.55
2.50.450.450.81
30.50.50.91.2
40.80.81.52.2
51.41.42.73.7
62245.8
83.13.16.99.3
104.84.810.514.5
12991925
1415.515.53141.5
1619193850.5
1823234661.5
20343458.578
24505075100
Approximate weights in kg, density 8 kg/dm3
Weights are referred to the reduction with the first smaller diameter

ASME B16.9 butt weld eccentric reducers dimensions

Nominal DiameterOutside Diameter
D1*D2
End to End
DNNPSSeries ASeries BH
20×153/4×1/226.9×21.325×1838
20×103/4×3/826.9×17.325×1438
25×201×3/433.7×26.932×2551
25×151×1/233.7×21.332×1851
32×251.1/4×142.4×33.738×3251
32×201.1/4×3/442.4×26.938×2551
32×151.1/4×1/242.4×21.338×1851
40×321.1/2×1.1/448.3×42.445×3864
40×251.1/2×148.3×33.745×3264
40×201.1/2×3/448.3×26.945×2564
40×151.1/2×1/248.3×21.345×1864
50×402×1.1/260.3×48.357×4576
50×322×1.1/460.3×42.457×3876
50×252×160.3×33.757×3276
50×202×3/460.3×26.957×2576
65×502.1/2×273.0×60.376×5789
65×402.1/2×1.1/273.0×48.376×4589
65×322.1/2×1.1/473.0×42.476×3889
65×252.1/2×173.0×33.776×3289
80×653×2.1/288.9×73.089×7689
80×503×288.9×60.389×5789
80×403×1.1/288.9×48.389×4589
80×323×1.1/488.9×42.489×3889
90×803.1/2×3101.6×88.9-102
90×653.1/2×2.1/2101.6×73.0-102
90×503.1/2×2101.6×60.3-102
90×403.1/2×1.1/2101.6×48.3-102
90×323.1/2×1.1/4101.6×42.4-102
100×904×3.1/2114.3×101.6-102
100×804×3114.3×88.9108×89102
100×654×2.1/2114.3×73.0108×76102
100×504×2114.3×60.3108×57102
100×404×1.1/2114.3×48.3108×45102
125×1005×4141.3×114.3133×108127
125×905×3.1/2141.3×101.6-127
125×805×3141.3×88.9133×89127
125×655×2.1/2141.3×73.0133×76127
125×505×2141.3×60.3133×57127
150×1256×5168.3×141.3159×133140
150×1006×5168.3×114.3159×108140
150×906×3.1/2168.3×101.6-140
150×806×3168.3×88.9159×89140
150×656×2.1/2168.3×73.0159×76140
200×1508×6219.1×168.3219×159152
200×1258×5219.1×141.3219×133152
200×1008×4219.1×114.3219×108152
200×908×3.1/2219.1×101.6-152
250×20010×8273.0×219.1273×219178
250×15010×6273.0×168.3273×159178
250×12510×5273.0×141.3273×133178
250×10010×4273.0×114.3273×108178
300×25012×10323.9×273.1325×273203
300×20012×8323.9×219.1325×219203
300×15012×6323.9×168.3325×159203
300×12512×5323.9×141.3325×133203
350×30014×12355.6×323.9377×325330
350×25014×10355.6×273.0377×273330
350×20014×8355.6×219.1377×219330
350×15014×6355.6×168.3377×159330
400×35016×14406.4×355.6426×377356
400×30016×12406.4×323.9426×325356
400×25016×10406.4×273.0426×273356
400×20016×8406.4×219.1426×219356
450×40018×16457×406.4478×426381
450×35018×14457×355.6478×377381
450×30018×12457×323.9478×325381
450×25018×10457×273.0478×273381
500×45020×18508×457529×478508
500×40020×16508×406.4529×426508
500×35020×14508×355.6529×377508
500×30020×12508×323.9529×325508
550×50022×20559×508-508
550×45022×18559×457-508
550×40022×16559×406.4-508
550×35022×14559×355.6-508
600×55024×22610×559-508
600×50024×20610×508630×529508
600×45024×18610×457630×478508
600×40024×22610×406.4630×426508
650×60026×24660×610-610
650×55026×22660×559-610
650×50026×20660×508-610
650×45026×18660×457-610
700×65028×26711×660-610
700×60028×24711×610720×630610
700×55028×22711×559-610
700×50028×20711×508720×530610
750×70030×28762×711-610
750×65030×26762×660-610
750×60030×24762×610-610
750×55030×22762×559-610
800×75032×30813×762-610
800×70032×28813×711820×720610
800×65032×26813×660-610
800×60032×24813×610820×630610
850×80034×32864×813-610
850×75034×30864×762-610
850×70034×28864×711-610
850×65034×26864×660-610
900×85036×34914×864-610
900×80036×32914×813920×820610
900×75036×30914×762-610
900×70036×28914×711920×720610
950×90038×36965×914-610
950×85038×34965×864-610
950×80038×32965×813-610
950×75038×30965×762-610
1000×95040×381016×965-610
1000×90040×361016×9141020×920610
1000×85040×341016×864-610
1000×80040×321016×8131020×820610
1050×100042×401067×1016-610
1050×95042×381067×965-610
1050×90042×361067×914-610
1050×85042×341067×864-610
1100×105044×421118×1067-610
1100×100044×401118×10161120×1020610
1100×95044×381118×965-610
1100×90044×361118×9141220×920610
1150×110046×441168×1118-711
1150×105046×421168×1067-711
1150×100046×401168×1016-711
1150×95046×381168×965-711
1200×115048×461220×1168-711
1200×110048×441220×11181220×1120711
1200×105048×421220×1067-711
1200×100048×401220×10161220×1020711

ANSI--American National Standards Institute

Nominal Pipe Size (NPS)Outside Diameter at BevelCenter-to-End
D1D2H
¾×½1.050.841.5
¾×⅜1.050.681.5
1×¾1.321.052
1×½1.320.842
1¼×11.661.322
1¼×¾1.661.052
1¼×½1.660.842
1½×1¼1.91.662.5
1½×11.91.322.5
1½×¾1.91.052.5
1½×½1.90.842.5
2×1½2.381.93
2×1¼2.381.663
2×12.381.323
2×¾2.381.053
2½×22.882.383.5
2½×1½2.881.93.5
2½×1¼2.881.663.5
2½×12.881.323.5
3×2½3.52.883.5
3×23.52.383.5
3×1½3.51.93.5
3×1¼3.51.663.5
3½ ×343.54
3½×2½42.884
3½ ×242.384
3½×1½41.94
3½×1¼41.664
4×3½4.544
4×34.53.54
4×2½4.52.884
4×24.52.384
4×1½4.51.94
5×45.564.55
5×3½5.5645
5×35.563.55
5×2½5.562.885
5×25.562.385
6×56.625.565.5
6×46.624.55.5
6×3½6.6245.5
6×36.623.55.5
6×2½6.622.885.5
8×68.626.626
8×58.625.566
8×48.624.56
8×3½8.6246
10×810.758.627
10×610.756.627
10×510.755.567
10×410.754.57
12×1012.7510.758
12×812.758.628
12×612.756.628
12×512.755.568
14×121412.7513
14×101410.7513
14×8148.6213
14×6146.6213
16×14161414
16×121612.7514
16×101610.7514
16×8168.6214
18×16181615
18×14181415
18×121812.7515
18×101810.7515
20×18201820
20×16201620
20×14201420
20×122012.7520
22×20222020
22×18221820
22×16221620
22×14221420
24×22242220
24×20242020
24×18241820
24×16241620
26×24262424
26×22262224
26×20262024
26×18261824
28×26282624
28×24282424
28×20282024
28×18281824
30×28302824
30×26302624
30×24302424
30×20302024
32×30323024
32×28322824
32×26322624
32×24322424
34×32343224
34×30343024
34×26342624
34×24342424
36×34363424
36×32363224
36×30363024
36×26362624
36×24362424
38×36383624
38×34383424
38×32383224
38×30383024
38×28382824
38×26382624
40×38403824
40×36403624
40×34403424
40×32403224
40×30403024
42×40424024
42×38423824
42×36423624
42×34423424
42×32423224
42×30423024
44×42444224
44×40444024
44×38443824
44×36443624
46×44464428
46×42464228
46×40464028
46×38463828
48×46484628
48×44484428
48×42484228
48×40484028
Nominal Pipe Size (NPS)Outside DiameterEnd-to-End
ABD1D2H
20×15¾×½27.221.738.1
25×201×¾3427.250.8
25×151×½3421.750.8
32×251¼×142.73450.8
32×201¼×¾42.727.250.8
32×151¼×½42.721.750.8
40×321 ½×1¼48.642.763.5
40×251 ½×148.63463.5
40×201 ½×¾48.627.263.5
40×151 ½×½48.621.763.5
50×402×1½60.548.676.2
50×322×1¼60.542.776.2
50×252×160.53476.2
50×202×¾60.527.276.2
65×502 ½×276.360.588.9
65×402 ½×1½76.348.688.9
65×322 ½×1¼76.342.788.9
65×252 ½×176.33488.9
80×653×2½89.176.388.9
80×503×289.160.588.9
80×403×1½89.148.688.9
80×323×1¼89.142.788.9
90×803 ½×3101.689.1101.6
90×653 ½×2½101.676.3101.6
90×503 ½×2101.660.5101.6
90×403 ½×1½101.648.6101.6
90×323 ½×1¼101.642.7101.6
100×904×3½114.3101.6101.6
100×804×3114.389.1101.6
100×654×2½114.376.3101.6
100×504×2114.360.5101.6
100×404×1½114.348.6101.6
125×1005×4139.8114.3127
125×905×3½139.8101.6127
125×805×3139.889.1127
125×655×2½139.876.3127
125×505×2139.860.5127
150×1256×5165.2139.8139.7
150×1006×4165.2114.3139.7
150×906×3½165.2101.6139.7
150×806×3165.289.1139.7
150×656×2½165.276.3139.7
200×1508×6216.3165.2152.4
200×1258×5216.3139.8152.4
200×1008×4216.3114.3152.4
200×908×3½216.3101.6152.4
250×20010×8267.4216.3177.8
250×15010×6267.4165.2177.8
250×12510×5267.4139.8177.8
250×10010×4267.4114.3177.8
300×25012×10318.5267.4203.2
300×20012×8318.5216.3203.2
300×15012×6318.5165.2203.2
300×12512×5318.5139.8203.3
350×30014×12355.6318.5330.2
350×25014×10355.6267.4330.2
350×20014×8355.6216.3330.2
350×15014×6355.6165.2330.2
400×35016×14406.4355.6355.6
400×30016×12406.4318.5355.6
400×25016×10406.4267.4355.6
400×20016×8406.4216.3355.6
450×40018×16457.2406.4381
450×35018×14457.2355.6381
450×30018×12457.2318.5381
450×25018×10457.2267.4381
500×45020×18508457.2508
500×40020×16508406.4508
500×35020×14508355.6508
500×30020×12508318.5508
550×50022×20558.8508508
550×45022×18558.8457.2508
550×40022×16558.8406.4508
550×35022×14558.8355.6508
600×55024×22609.6558.8508
600×50024×20609.6508508
600×45024×18609.6457.2508
600×40024×16609.6406.4508
650×60026×24660.4609.6609.6
650×55026×22660.4558.8609.6
650×50026×20660.4508609.6
650×45026×18660.4457.2609.6
700×65028×26711.2660.4609.6
700×60028×24711.2609.6609.6
700×55028×22711.2558.8609.6
700×50028×20711.2508609.6
750×70030×28762711.2609.6
750×65030×26762660.4609.6
750×60030×24762609.4609.6
750×55090×22762558.8609.6
800×75032×30812.8762609.6
800×70032×28812.8711.2609.6
800×65032×26812.8660.4609.6
800×60032×24812.8609.6609.6
850×80034×32863.6812.8609.6
850×75034×30863.6762609.6
850×70034×28863.6711.2609.6
850×65034×26863.6660.4609.6
900×85036×34914.4863.6609.6
900×80036×32914.4812.8609.6
900×75036×30914.4762609.6
900×70036×28914.4711.2609.6
950×90038×36965.2914.4609.6
950×85038×34965.2863.6609.6
950×80038×32965.2812.8609.6
950×75038×30965.2762609.6
1000×95040×381016965.2609.6
1000×90040×361016914.4609.6
1000×85040×341016863.6609.6
1000×80040×321016812.8609.6
1050×100042×401066.81016609.6
1050× 95042×381066.8965.2609.6
1050×90042×361066.8914.4609.6
1050×85042×341066.8863.6609.6
1100×105044×421117.61066.8609.6
1100×100044×401117.61016609.6
1100×95044×381117.6965.2609.6
1100×90044×361117.6914.4609.6
1150×110046×441168.41117.6711.2
1150×105046×421168.41066.8711.2
1150×100046×401168.41016711.2
1150×95046×381168.4965.2711.2
1200×115048×461219.21168.4711.2
1200×110048×441219.21117.6711.2
1200×105048×421219.21066.8711.2
1200×100048×401219.21016711.2

Applications

A steel pipe reducer is a component used in the pipelines to reduce its size from large to small bore in accordance to the inner diameter. The length of the reduction here is equal to an average of the smaller and larger pipe diameters. Here, the reducer can be used as a diffuser or a nozzle. The reducer helps in meeting the existing piping of varied sizes or hydraulic flow of the piping systems. The usage of a steel reducer is carried out in the chemical factories and power plants. It makes the piping system reliable and compact. It safeguards the piping system from any kind of adverse impact or thermal deformation. When it is on the pressure circle, it prevents from any type of leakage and is easy to install. The nickel or chrome coated reducers extends the product life, useful for high vapor lines, and prevents corrosion.

  • Pipe Reducer
  • Hydraulic system
  • Pneumatic system
  • Pharmaceutical fittings
  • Air brake fittings
  • Gas fittings
  • Refrigerant fittings
  • Changing the piping diameter
  • Handling the expansion, misalignment or vibration problem

Feature

The pipe reducer is one of the pipe fittings, which is used for connecting two pipes with varying diameters. A pipe reducer is used to change rate of fluids the flow through. Reducers are usually made by reducing pressing processes, or by expanding pressing processes or by both reducing and expanding pressing processes together, and we can also adopt stamping processes for reducers with some specifications. Reducers are categorized into types, Eccentric and Concentric Reducer. The pipe reducers are widely available in a various materials as per the demands of its applications and industries and also available in different dimensions too.

  • Pipe reducer help to connect large diameter pipe with small diameter pipe.
  • Noise and vibration are reduced by using these type of reducers.
  • These reducers need a limited amount of setup space.
  • The eccentric reducer absorbs sounds generated by the pipe wall as well as fluid tolerated.
  • This reducers have the lowest amount of turbulence entrapment.

Packing

For packing of carbon steel flanges with painting,we would use the bubble wrap to protect the painting.For flanges without painting or oiled with long-term shipment,we would suggest client to use the anti-tarnish paper and plastic bag to prevent the rust.
Packing reducers in wooden cases

Wrap the plastic tightly around the pipe to protect the tee

Inquiry

Need to inquire about our products? Fill out the form below and our staff will be in touch!

Contact Form Demo

FAQ

Q: How long is your delivery time? A: The delivery time of customized products is generally 25 35 days, and non customized products are generally shipped within 24 hours after payment. Q: Do you provide samples? Is it free? A: If the value of the sample is low, we will provide it for free, but the freight needs to be paid by the customer. But for some high value samples, we need to charge a fee. Q: What are your payment terms? A: T/T 30% as the deposit,The balance payment is paid in full before shipment Q: What is the packaging and transportation form? A: Non steaming wooden box and iron frame packaging. Special packaging is available according to customer needs. The transportation is mainly by sea. Q: What is your minimum order quantity? A: There is no minimum order quantity requirement. Customized products are tailor made according to the drawings provided by the customer.