China Orifice Flange manufacturer DUWA produces Steel Flanges for Orifice plates , 8" 300# WN RF, Material A105.
Dimensions: ANSI B16.5, MSS SP 44, API.
Tolerances: ANSI B16.36, API, ASME, MSS SP 44
Material: A105
Construction: Forged
Face: RF
Rating: 300LBS
Purchase Order should specify need Flange or Pair of Flanges.
Flanges shall be complete with 4 hex head plugs (2 per flange) of the same material as the flanges. 2 jackscrews (for drilled flange),bolts,nuts and gaskets.
Source: http://www.dwpiping.com/steel-flanges-for-orifice-plates-8-300-wn-rf-a105.html
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