Carbon Stainless Steel Long Welding Neck Flange

Product Introduction

Size:

The common sizes are 1/2 “-24″, and the dimensions of long neck butt welding flanges cover aspects such as pipeline diameter, bolt hole diameter, number of bolt holes, and bolt hole layout.

Pressure level:

The pressure rating of long neck butt welding flanges usually includes 150 #, 300 #, 600 #, 900 #, 1500 #, etc., and the specific selection depends on the pressure requirements of the project.

Sealing surface:

The sealing surface of the long neck butt welding flange can be in different forms such as FF, M, G, RTJ, etc.

Material:

The materials of long neck butt welding flanges usually include carbon steel, stainless steel, alloy steel, etc.

International standards:

ANSI B16.5 (American standard), EN 1092-1 (European standard), JIS B2220 (Japanese standard), etc.

Long welding neck flange is a common flange connection method, usually used to connect pipelines and equipment.

Advantages and disadvantages:

Advantages:

1. Suitable for high temperature and high-pressure environments.

2. Bolted connections make installation and maintenance relatively simple.

3. It has good sealing performance and is suitable for various media.

Disadvantages:

1. The cost is high, especially in situations with high pressure and high temperature requirements.

2. The installation needs to be more precise and is not suitable for some simple low-pressure and low-temperature applications.

Application scope:

Long neck butt welding flanges are widely used in industries such as petroleum, chemical, power, metallurgy, papermaking, and shipbuilding, especially in situations with high temperature and pressure requirements, such as high-temperature steam pipelines and high-pressure gas pipelines.

Overall, long neck butt welding flanges are a high-performance connection method, but when selecting, it is necessary to make a reasonable combination based on specific engineering requirements and conditions.

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

One of our storage

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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.