Buttweld Equal Cross Specification:

Carbon Steel	ASTM A234 WPB,WPBW,20#, 20G,Q235-A, NACE MR-0175
Stainless Steel	ASTM A403 WP304, 304L, 304H, 309, 310, 316, 316L, 317L, 321, 347
Low Temperature Carbon Steel	ASTM A420 WPL3, A420 WPL6,WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70 API5L X42/46/52/56/60/65/70/80(NS/MS), NACE MR-0175
Alloy Steel	ASTM / ASME A/SA 234 Gr. WP1, WP5, WP9, WP11, WP12, WP22, WP91, WB36, 12CrMo, 15Cr5Mo, 1Cr5Mo, 12Cr1MoV, NACE MR-0175
Duplex Steel	ASTM A 815, ASME SA 815 UNS NO S31803, S32205. S31254, 254SMO, S32750,904L,F51,F53
Nickel Alloy Steel	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 )
Note	Our company can produce customized products according to customer requirements
Concentric Reducer
Eccentric Reducer

Pipe reducers

Pipe Reducers are the component in a pipeline that reduces the pipe size from a larger to a smaller bore (inner diameter).

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.

Key Specifications/Special Features of pipe reducer

Standard: ANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ASME B36.10M---1996, DIN2605 / 2615 / 2616, JIS P2311/2312

Surface treatment: Transparent oil, rust-proof black oil or hot galvanized.

· Based on different materials, pipe reducers include carbon steel reducer, stainless steel reducer, and alloy steel reducer etc.

· Depending on their construction, pipe reducers contain threaded reducer, tapered reducer and anti-roll reducer etc.

Horizontal liquid reducers are usually eccentric, with a flat top that avoids the accumulation of air bubbles in the system. Eccentric reducers are used on the suction side of pumps to stop air trapping in the tubing. The gradual accumulation of air in a concentric reducer can result in a large bubble, causing the pump to stall or cavitation when drawn into the pump. Horizontal gas reducers are often eccentric with smooth bottoms, allowing condensed water or oil to drain at low stages.

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.

Welded Pipe Reducers

Butt weld fittings are available in concentric reducers and eccentric reducers to reduce the flow from one size of pipe to another.

· A concentric reducer butt weld fitting is symmetrical: both ends are aligned along the center.

· An eccentric reducer butt weld fitting is not symmetrical: ends are off center of one another.

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

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.