NPS | Outside Diameter | Inside Diameter | Thickness | Bolt Circle | Holes Diameter | Number of Bolt Holes | 45 Degree Bevel (B) |
Weight Each (lbs) |
2 | 6 | 2.44 | 0.5 | 4.75 | 0.75 | 4 | 0.25 | 3.1 |
3 | 7.5 | 3.57 | 0.5 | 6 | 0.75 | 4 | 0.25 | 4.6 |
4 | 9 | 4.57 | 0.5 | 7.5 | 0.75 | 8 | 0.25 | 6.2 |
6 | 11 | 6.72 | 0.5 | 9.5 | 0.875 | 8 | 0.25 | 7.8 |
8 | 13.5 | 8.72 | 0.5 | 11.75 | 0.875 | 8 | 0.25 | 11.2 |
10 | 16 | 10.88 | 0.5 | 14.25 | 1 | 12 | 0.25 | 14 |
12 | 19 | 12.88 | 0.5 | 17 | 1 | 12 | 0.25 | 20.4 |
Backing flange is a small device connected to the back of a welded joint, which is also one of many flange types. The common material type is also stainless steel backing flange
Purpose:
1) Provide support for welding.
2) Prevent pollutants from entering the joint
Type:
Backing flanges are available in types such as flat, tapered, and stepped surfaces.
The flat backing flange has a uniform surface on both sides and can be used for most types of welding.
The conical and stepped backing flanges have one or more angled surfaces on both sides, providing greater stability when welding thicker materials or joints with large gaps between them.
Usage:
1. Backing flanges are typically used in pipeline manufacturing work to provide additional stability for large-diameter pipelines during the welding process.
2. Backing flanges are also commonly used in sheet metal manufacturing to provide additional strength and stability for thin plates during welding operations.
3. Backing flanges can also be used for any welding project, as larger joints or thicker materials require additional stability.
The common standard for backing rings is the American standard-ANSI B16.5,ANSI CLASS150 PN16 is a common pressure rating standard.
The manufacturing method of stainless steel backing flange is also common in galvanized way, so it is also known as galvanized backing rings flanges.
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.