BS 4504 Stainless Steel Socket Welding Flange, RF, PN40

Jan 01, 1970

Stainless steel socket welding, a popular type of flanges is widely used for small diameter pipe under high pressure. The functions of socket welding flange are similar to slip-on flange. Both of them can be used to connect two pipes. Compared with slip-on flange, the smooth bore on socket welding flange allows better fluid flow. When being welded internally, the static strength of socket welding flange is equal to slip-on flange while the fatigue strength is higher than double welding slip-on flanges by 50%. Sometimes, socket welding flange can replace of slip-on flange, being used for pipes.

Materials

Stainless steel: ASTM A182 F304,304L, 1Cr18Ni9Ti, 0Cr18Ni9Ti

Standard: BS 4504, 4505, 3293

Parameter

Nominal diameter: DN15-400mm

Nominal pressure: PN40Bar

Flanging face: raised face (RF)

Dimensions

Flanging face	Nominal diameter	Nominal pressure
Raised face (RF)	DN15-400mm	PN40

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