Surface FinishThe ‘finish’ of a flange face surface represents the final properties of a flange’s sealing surface. A flange face may be smooth or serrated, but additional machining steps can be taken to further define the exact finish of each type of surface. For example, a flange ...
Flange “finish” refers to the type of surface produced by matching theflange face, which contacts the gasket. The two types of finish are “smooth” and “serrated.” Raised face forged steel flanges are machined to provide a “serrated concentric” groove, or a “serrated spiral” groove ...
Raised face flanges can be supplied in all the surface finishes; concentric serrated, mirror, rough, smooth, spiral serrated and stock finish. 9.9.2.3 Ring-type joint (RTJ) The ring-type joint flange is a version of the raised face flange used for high pressure or hazardous fluid ...
Tube Price June Tube Price May. 2018 Tube price April 2018 Flange Face Surface Finish ANS changzhou tremen steel co.,ltd Contact Us Name:Chain Xu Tel:+86-519-8985-1850 Mobile:+86-185-5109-0083 E-mail:chain@tremensteel.com Skype:chain.xu ...
This standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange face surface finish, marking, materials, pressure/ temperature ratings and flange masses. Flange faces have to be smooth enough to ensure a tight, leak-free seal for bolted flanges. ...
1.Face Machining: Flat Face(FF),Raised Face(RF),RTJ,FM,TG,etc. 2.Sealing Machining: Waterlines,Smooth Finish,Serrated Finish. 3.CNC fine finished and Marking. *Standard of the Flanges Face: The finish on the face of flange is measured as an Arithmetical Aver...
Face finish: The finish on the face of flange is measured as an Arithmetical Average Roughness Height(AARH). The finish is determined by the standard used. For example, ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra). Other finishes are av...
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Sealing SurfaceRF FF RTJ TF GF LF LM Flange Face FinishStock Finish/Spiral Serrated/Concentric Serrated/Smooth Finish(Ra 3.2 and 6.3 micrometers) 125-250 AARH(it is called smooth finish) 250-500 AARH(it is called stock finish) CoatingVanish, yellow paint, anti-rust oil, galvanizing etc ...