How many kinds of Reducer do you know?
Reducers are most extensively used in piping industry to reduce or expand the straight part of run pipe. Basically, reducers are available in two styles:Concentric reducers and Eccentric reducers.Concentric reducers are most commonly used, as they create less friction for the fluid flow, however, eccentric reducers are utilized when space or alignment is a concern.
●Concentric Reducer is also called welded concentric coupling. It allows from 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.
●Eccentric Reducer: An eccentric reducer is also called welded eccentric coupling. It allows for welding a large pipe to a smaller pipe with an offset center line. The offset of the center line in an eccentric reducer is; Offset = 1/2 x (Largest ID - Smallest ID)
Depending on end connections of this fitting with straight pipe, reducers are also grouped as follows:
●Butt Weld reducer.The applicable pressure rating, dimensional and material standards for butt welding reducers are same as those applicable to butt welding elbows.
●Screwed reducer.Available only in concentric type and are in the form of coupling having one end to fit bigger pipe and other end to fit smaller pipe. Material standards including pressure ratings are same as of screwed elbows.
●Flanged reducer.Their pressure rating, use, material and dimensional standards are same as those applicableto flanged elbows. Regardless of reduction their face to face dimensions are governed by the larger pipe size.
According to the material,reducer can be classified as follows:
●Carbon steel: ASTM/ASME, A234, WPB, WPC
●Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV
●Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N;
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti;
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
In addition,there are Cast steel,copper, Aluminum Alloy, plastics, PVC,PPR, RFPP (reinforced polypropylene) etc..
Decho can provide Carbon Steel reducer and Stainless Steel reducer With sizes ranging from 1/4” to 48" required for almost any piping project.