Slip on flange is a type of steel flange which slides over the end of steel piping and then welded in place. Because the pipe slips into the flange before welding, it has a low hub. The inside and outside of the flange are both welded, resulting in sufficient strengh and no leak.
The slip-on flange is positioned so the inserted end of the pipe or fitting is set short of the flange face by the thickness of the pipe wall plus 1/8 of an inch, which thus allows for a fillet weld inside the SO flange equal without doing any damage to the flange face. The back or outside of the slip-on flange or SO flange is also welded with a fillet weld.
Standard: ANSI, DIN, JIS, BS, GB
Flange sealing surface: FF/RF/MFM/TG/RJ
Pressure: ANSI 150LBS-2500LBS, DIN PN10-PN40, JIS 5K-30K
Carbon Steel Slip on flange:
ASTM SA350 LF2,
ASTM SA694 F42/46/52/56/60/65…
Stainless Steel Slip on flange:
ASTM A182 F304/304L/316/316L…
Duplex Stainless Steel:
ASTM A182 F51/F53/F55/F60…
Alloy Steel Slip on flange:
ASTM A182 F1/F5/F9/F11/F22/F9,A335P22
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