OEM Customized Bs4504 Flanges - ASME/ANSI B16.5 stainless steel Weld Neck Flange – Xinqi

Product Discription

    Neck butt welding flange refers to a flange with a tapered neck and butt welding with the cylinder or pipe. It is an integral flange.

    Due to the transition structure of the tapered neck and the butt welding connection, the strength and rigidity of the flange are strengthened, and the sealing performance is better than that of the flat welding flange. The disadvantage is that it needs to be made of forgings, which consumes a lot of materials and costs a lot. It is suitable for occasions with high pressure, high temperature or high sealing requirements.

   Sealing surface forms are divided into: convex surface (RF), concave surface (FM), convex surface (M), tenon surface (T), groove surface (G), full plane (FF).

Features

The difference between SO and WN

1. Different weld types:

Slip On Flanges: fillet weld is used for welding between flange pipe and flange.

Weld Neck Flanges: the welding seam between flange and pipe is circumferential weld.

2. Different materials:

Slip On Flanges is machined from ordinary steel plate with thickness meeting the requirements.

Weld Neck Flanges is mostly machined from forged steel.

3. Different nominal pressures:

Nominal pressure of Slip On Flanges: 0.6 — 4.0MPa,

Nominal pressure of Weld Neck Flanges : 1-25MPa,

4.Different structures

Slip On Flanges: Refers to the flange that extends steel pipes, pipe fittings, etc. into the flange and connects with equipment or pipes through fillet welds.

Weld Neck Flanges: A flange with neck and a pipe transition, which is connected with the pipe by butt welding.

5. Scope of application:

Slip On Flanges : There is a short neck, which increases the strength of the flange and improves the bearing capacity of the flange. So it can be used on higher pressure pipelines.

Weld Neck Flanges: Suitable for pipelines with large fluctuations in pressure or temperature or pipelines with high temperature, high pressure and low temperature, for the connection of pipelines and valves with PN greater than 2.5MPa; also used for transportation of expensive and flammable , on the pipeline of explosive medium.

Data Parameter

1.Shrink bag–> 2.Small Box–> 3.Carton–> 4.Strong Plywood Case

One of our storage

Loading

Packing & Shipment

1.Professional manufactory.
2.Trial orders are acceptable.
3.Flexible and convenient logistic service.
4.Competitive price.
5.100% testing,ensuring the mechanical properties
6.Professional testing.

1.We can guarantee the best material according to related quotation.
2.Testing is performed on each fitting before delivery.
3.All packages are adapt for shipment .
4. Material chemical composition is conformed with international standard and environment standard.

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.