This is similar to a slip-on flange in outline, but the bore is threaded, thus enabling assembly without welding. This obviously limits its application to relatively low pressure piping systems. The flange may be welded around the joint after assembly, but this is not considered a satisfactory method of increasing its applications.
CARBON STEEL
| A105 | C21, C22.8 | EN10222-2 |
STAINLESS STEEL
| A182 F304 | (L/H) UNS S30400 | WSt. 1.4301 | EN10222-5 |
| A182 F316 | (L/H/Ti) UNS S31600 | WSt. 1.4401 | EN10222-5 |
