Socket Welding Flange

SOCKET WELDING FLANGES were initially developed for use on small size high pressure piping. When provided with an internal weld, their static strength is equal to, but their fatigue strength 50% greater than double welding slip-on flanges. Smooth bore conditions can readily be attained (by grinding the internal weld) without having to bevel the flange face and, after welding, to reface the flange as would be required with slip-on flanges. The internally welded socket type flange is popular in chemical process piping for this reason.
 
 
Specification: 
Manufacturing standards: ANSI B 16.5, BS 1560. BS 10, IS 6392, B-2.1 NPT, API, DIN, JIS. MSS SP 44
Stainless Steel: ASTM A182 F304/ 304L/ 304H/ 316/ 316L/ 317/ 317L/ 321/ 310/ 347/ 904Letc.

Duplex Stainless Steel: UNS S31803, 2205 
Carbon Steel: ASTM A105/ A694 F42/ 46/52/56/60/65/70/A350 LF3/A350 LF2, etc.
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91 
Size: 1/8" NB to 48"NB 
Class: 150, 300, 400, 600, 900, 1500 & 2500
The surface forms: according to customer requirements

 

密封面型式 公称压力PN/MPa
(bar)
 1.0
(10)
 1.6
(16)
2.5
(25) 
4.0
(40)
 6.3
(63)
10.0
(100)
突面(RF)   DN10-50
凹凸面(MFM)
榫槽面(TG)

 

 

密封面型式 公称压力PN (MPa)
(Class)
2.0
Class 150
5.0
Class 300
11.0
Class 600
15.0
Class 900
26.0
Class 1500
突面(RF) DN15-80
(1/2"-3")
DN15-80
(1/2"-2.1/2")
凹凸面(MFM) - DN15-80
(1/2"-3")
榫槽面(TG)
环连接面(RJ) DN25-80
(1"-3")