WeldingCarbon Steel Seamless Pipe Fitting CON//ECC Reducer

While using an eccentric reducer, the user has the option of orienting the flat side. Usually, for horizontal lines, eccentric reducers are oriented with either the flat side up or down, and the same with deviation is mentioned in isometric.

Normally eccentric reducers with the flat side down are preferred for the following cases on horizontal lines:On Sleepers and Piperacks: To maintain the same BOP (Bottom of Pipe) Control valve station: An eccentric reducer with a flat side down is required to get a constant flow through the control valve with less flow disruptions.In horizontal gas, steam, or vapor piping, eccentric reducers are required to be installed with a flat side down which allows condensed water or fluid to drain at low points.Eccentric reducers with the flat side up are used for all pump suction lines (excluding pump handling slurry) on horizontal lines. This way one can avoid air getting trapped inside the pipeline during initial venting through the pump casing and will help in avoiding Cavitation.Types of Piping Reducers based on End ConnectionDepending on the end connections of this fitting with a straight pipe, reducers are grouped as follows:Butt-welded pipe reducers,Screwed piping reducers,Available only in the concentric type and are in the form of coupling having one end to fit bigger pipe and another end to fit smaller pipe.  ASME B16.11 is an applicable dimensional standard. Material standards including pressure ratings are the same as those of Flanged pipe reducers.Their pressure rating, use, material, and dimensional standards are the same as those applicable to flanged elbows. Regardless of reduction, their face-to-face dimensions are governed by the larger pipe size.

Materials of Pipe Reducers:Pipe reducers are made of various materials like Carbon Steel, Alloy, Stainless steel, As compared to the Stainless Steel Reducer, Carbon Steel Reducer possesses higher strength, high-pressure resistance, and wear resistance but this can be easily corroded.Carbon Steel material standards and grades used for pipe reducers are A234 WPB , A420 WPL6, MSS-SP-75 WPHY 42, 46, 52, 56, 60, 65, and 70.

Stainless Steel Pipe Reducer material grades are: ASTM A403 WP 304, 304L, A403, 316, 316L, 317, 317L, 321, 310 and 904L, etc.

Alloy Steel Pipe Reducer material grades include A234 WP1, WP5, WP9, WP11, WP22, WP91, etc.

Nickel Alloy: ASTM/ASME SB 336 UNS 2200 (NICKEL 200), UNS 8020 (ALLOY 20 / 20 CB 3, UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 INCONEL (825), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601).

Pipe Reducer Fitting Dimension.The dimensions for butt welded piping reducers are provided by ASME B 16.9.

As a professional Concentric Reducer and eccentric reducer manufacturer, factory, exporter in China, Hebei Youlong has accumulated nearly 20 years of experience and expertise in manufacturing ASME, DIN, JIS, and other standard carbon steel reducers, stainless steel reducers, and alloy reducers.

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