Type

flange is a type of industrial flange designed to transfer stresses to the pipe to reduce high stress concentrations at the base of the flange. Compared with other types, weld neck flanges are known for their tapered hub and gentle transition from flange thickness to pipe wall thickness. They are deformation-resistant, and are normally used for high pressure, high or low temperature conditions.

Size

3/8"~160" DN10~DN4000

Pressure

American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500 European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400

Standards

ASME B16.5-2009 ASME B16.47-2006API605-1988MSS SP 44-2006CSA Z245.12-05-2005EN1092-1-2007 EN1759-1-2004DIN2630 DIN2631 DIN2632 DIN2633 DIN2634 DIN2635 DIN2636 DIN2637 DIN2638BS1560-3.1-1989 BS4504-3.1-1989AFNOR NF E29-200-1-2007ISO7005-1-1992AS2129-2000JIS B2220-2004

Material

Carbon steel: A105Alloy steel: A182 F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22 Stainless steel: A182 304-304H-304L-304N-304LN 316-316H-316L-316N-316LN 321-321H 347-347H 904LLow temperature steel: A522 A707 Grade L 1-L 2-L 3-L 4-L 5-L 6-L 7-L 8 High performance steel: A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70

Low-temperature steel: ASTM/ASME A402 WPL 3-WPL 6High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Surface treatment

Transparent oil, rust-proof black oil or hot galvanized

Flange Facing Types

American Series: Flat Face(FF), Raised Face(RF), Tongue(T), Groove(G), Female(F), Male(M), Ring Joints Face(RJ)European Series: Type A(Flat Face), Type B(RaisedFace), Type C(Tongue), Type D(Groove), Type E(Spigot), Type F(Recess), Type G(O-Ring Spigot), Type H (O-Ring Groove)

Industries Served

Electrical power, petroleum, natural gas, chemical, shipbuilding, heating, papermaking, metallurgy

Delivery time

10days after receipt of advanced payment

Certification

API, CCS, and ISO9001:2000

Delivery Term

FOB(30% down payment in advance, the balance before shipment)

CIF or C&F(30% in advance , the balance against with the copy of B/L)