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 |
a) How can I get more details about your products?
You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider.
b) How can I get some samples?
If you need, we will offer you samples for free, but new customers are expected to pay express charge.
c) Do you provide customized parts?
Yes, you can give us drawings and we will manufacture accordingly.
d) To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.).
e) I can't see the goods or touch the goods, how can I deal with the risk involved?
Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.
Audited Supplier 
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