The full name of the neck flat welding flange is the neck flat welding steel pipe flange, which is a flange that extends steel pipes, pipe fittings, etc. into the flange and connects equipment or pipes through fillet welds.
The sealing surface forms of neck flat welding flange are:
Raised face (RF), concave face (FM), convex face (M), tenon face (T), grooved face (G), full face (FF).
Diameter range of neck flat welding flange: DN10~DN600.
Scope of application: PN series PN2.5~PN40; Class series Class150~Class1500
Flange material: carbon steel, Luomo steel, 304, 316, 304L, 316L, 321, 347, CF8C.
Advantages and disadvantages:
Advantages: The neck slip on flange is also a slip on flange, because it has a short neck, which improves the strength of the flange and improves the bearing capacity of the flange. Therefore, it can be used on pipes with higher pressure.
Disadvantages: The cost is higher than plate flat welding flange, and it is easier to bump due to its shape.
| Slip On Flange |
| Size |
ASME B16.5:1/2"-24" |
| ASME B16.47:26"-48" |
| Rating |
150lb/300lb/600lb/900lb/1500lb/2500lb |
| Standard |
ASME B16.5,ASME B16.47A,ASME B16.47, MSS SP 44, DIN 2632, DIN2633, DIN2634, DIN2635, DIN2636, JISB2220, BS4504, GB, etc |
| Material |
carbon steel:A105,A350 LF2,A694 F52,F65;Q235 etc |
| Stainless steel:ASTM A182 F304,304L,316,316L,321,1Cr18Ni10.A182 F51,F53,F55 etc |
| Surface |
Black Painting / Anti Rust Oil / Hot Dip Galvanized |
| Certification |
ISO 9001:2015 |
| Port of delivery |
Tianjin Port |
Audited Supplier 
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