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Orifice flange 孔板法兰

产品 > FLANGE 法兰 > Orifice flange 孔板法兰
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Orifice flange 孔板法兰

An Orifice Flange is a disc-shaped flange, engineered with either a Raised Face or a Ring Type Joint facing. The traditional orifice flange assembly consists of a pair of flanges, orifice plate, bolts, nuts, gaskets, jacking screws and plugs. It generally come with either Raised Faces or RTJ (Ring Type Joint) facings.

We GUTE is the manufacture that provide all kinds of  steel flanges like Orifice Flanges, Plate Flanges, Weld Neck Flanges, Slip On Flanges, Socket Weld Flanges, and so on, and also other special flanges according to the client's requirement.
Orifice Flange Specification:

StandardTypeClassSize
ASME B16.5WN/LWN/SO/Blind/Lap Joint150#-2500#1/2"-24"(Except Blind Flange 2500lb 1/2"-12")
EN1092-1:2002Plate flange for welding/loose plate flange with weld-on plate collar or for lapped pipe end/Blind Flange/WN flangePN2.5-PN100DN10-DN4000
OtherWN/LWN/SO/SW/blind/plate/threaded/anchor/swivel/girth/lap joint/reducing/orifice
spectacle blind/paddle blind/spacer ring/orifice plate/bleed ring
Speical Products: Rings/Forgings/Disc/Shaft Sleeve
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
flange surfce coating treatment
Orifice Flange  Material Grades:
Carbon SteelASTM /ASME A/SA105(N), A350 LF2/LF3, A694 F52, F56, F60, F65, F70
Alloy SteelASTM/ASME A/SA 182  F5, F9, F11, F22, F91
Stainless SteelASTM/ASME A/SA 182 F304, 304L, 304H, 310H, 316, 316H, 316L, 
316Ti, 317, 317L, 321, 321H, 347, 347H, 904L
Duplex and
Super Duplex		ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61,
S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950
Nickel Alloy SteelASTM/ASME B/SB 564 UNS N02200(NICKEL 200), UNS N04400, (MONEL 400),
UNS N08825( INCOLOY 825), UNS N06600(INCONEL 600), UNS N06601(INCONEL 601),
UNS N06625(INCONEL 625), UNS N10276(HASTELLOY C276)
ASTM/ASME B/SB160 UNS N02201(NICKEL 201),  ASTM B/SB472 UNS N08020(Alloy 20)
Copper AlloyASTM/ASME B/SB151 UNS N07060, 71500, C70600(CuNi 90/10), C71500(CuNi 70/30)
TitaniumASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7


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