Uni Welding Neck Flanges
Your Professional Uni Welding Neck Flanges Supplier
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Mainly produce flanges and forgings of various specifications. Application in piping installation, pressure vessel, equipment accessories.
Why Choose Us
Our Service
With strong technical force, advanced production technology, perfect quality inspection, and reliable after-sales service, it provides a basis for supervision and cooperation for many customers at home and abroad.
Our Certificate
The company Excellent Supplier of 2019 Safety production standardization certificate Quality management system certification.
Production Market
The products are mainly exported. It is exported to Europe, America and other countries and regions. The product quality is good, and the service is attentive. It is deeply appreciated and trusted by customers and users at home and abroad, and has won a high reputation. They have become one of the largest flange and forging suppliers in China.
Our Factory
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Convenient transportation, abundant coal and power resources, fast communication and superior environment.
Advantages of Uni Welding Neck Flanges
High strength
The Uni Welding Neck Flanges is the strongest weld in the pipeline connection. Its strength can be equal to or even exceed the strength of the pipeline itself.
Excellent sealing
Uni Welding Neck Flanges has high strength and high sealing precision. It is a very solid whole with very uniform stress distribution, so it has high sealing performance.
Excellent anti-fatigue performance
The flange itself has high strength and high sealing performance. All parts are tightly connected and very strong, not easy to deform.
High temperature and high pressure resistance
The above-mentioned high strength, high sealing and high fatigue resistance make Weld-Neck Flanges destined to be resistant to high temperature and high pressure.
Reusable
The clever design of Uni Welding Neck Flanges is to separate a part of the permanent welding connection from other parts, which makes disassembly and installation very convenient, and can be reused, and its performance will not be affected during the secondary use.
Adaptable to pipes of various sizes
Some flanges can only adapt to small diameter pipes, some can only adapt to large diameter pipes, but Weld-Neck Flanges can adapt to pipes of various sizes.
Composition of Uni Welding Neck Flanges
Flange Ring
This is the main component of the welding neck flange! The flange has bolt holes, bolt circle diameter, and sealing surface. The sealing surface also includes the raised face, ring connection surface, flat surface, and tongue and groove. The flange not only provides the bolt connection part, but also bears the sealing surface.
Tapered Hub
The Tapered Hub is the most special feature of the Welding Neck Flange. You can use its Tapered Hub to preliminarily judge whether it is a Welding Neck Flange! The Tapered Hub is a tapered neck extending from the flange plate. Its function is to provide mechanical strength for the flange and make the flange more resistant to deformation.
Weld Bevel / Weld End
At the end of the Tapered Hub, there will be a bevel groove with a specific angle. This groove is usually 37.5 degrees. It is to provide a welding area for the welding neck flange. The design of the groove will enable the solder to fully penetrate and fill to the root of the weld to ensure strength and density.
Product Paramenters
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Material: |
Corbon steel:ASTM A105/105N;A694 F42-F70;A350LF1/LF2;Stainless steel:ASTM A182 F304/304L;F316/316L;F321;F51;Alloy steel:ASTM A182 |
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Pressure: |
150# 300# 600# 900# 1500# 2500# |
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Surface preparation |
Anti-rust black paint, anti-rust varnish, transparent anti-rust oil, hot galvanized, sandblasting. |
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Packing detail |
Free fumigation wooden cases, trays can be according to customer requirements for special packaging |
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Minimum Order Quantity |
According to customer's requirement |
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Application Range |
It is widely used in petroleum, chemical industry, nuclear power plant, food manufacturing, construction, shipbuilding, papermaking, medicine and other industries. |
Various materials are appropriate for Uni Welding Neck Flanges, as specified by standards, with the highest level of quality regulated by ASTM and ASME rules. Theflange thickness and internal diameter of the flange should match the intended pipe size. Due to its exceptional resistance to extreme temperatures, carbon alloy is a highly desirable material for flange production.
Clients and professionals can benefit from different flange weights and grades, like the ASME B16 47 ‘A’ Series and ‘B’ Series. Additionally, stainless steel welding neck flanges made from ASTM A182, F304, 316L, 347H, 310S, and ASME B16 5 are available and finished with duplex steel.
Several materials are used in creating welding neck flanges, including stainless steel, carbon alloy, nickel alloy, and others, such as UNS S31803 Duplex Steel. Nickel Alloy materials such as Inconel 600 and 625, Hastelloy C22, and C276 are among the many options available.
Applications of Uni Welding Neck Flanges
Oil and Gas Industry
In the oil and gas sector, these flanges are used in pipeline systems to connect sections of piping that transport crude oil, natural gas, and other fluids. Their ability to withstand high pressures and corrosive environments makes them indispensable.
Chemical Processing
Chemical plants often require components that can handle aggressive chemicals and high temperatures. Stainless steel DIN weld neck flanges PN40 are ideal for these settings, providing durability and safety.
Water Treatment Facilities
In water treatment facilities, the need for corrosion-resistant materials is paramount. These flanges are employed to connect water pipes and tanks, ensuring a safe and efficient water supply.
Power Generation
In power generation plants, particularly those utilizing steam, the ability to withstand high pressures is critical. Stainless steel DIN weld neck flanges PN40 are commonly used in steam lines and other high-pressure applications.
Installation Process for Uni Welding Neck Flanges
Preparation of Surfaces
Before installation, ensure that the surfaces of both the flange and the pipe are clean and free of debris. This step is crucial to achieve a strong weld.
Alignment
Align the flange with the pipe accurately. Proper alignment helps prevent uneven stresses during operation, which can lead to failures.
Welding
Proceed with the welding process, ensuring that the weld is continuous and even around the entire circumference of the flange. Utilize appropriate welding techniques suitable for stainless steel to avoid defects.
Inspection
After welding, inspect the joint for any signs of defects or weaknesses. Non-destructive testing methods can be employed to ensure the integrity of the weld.
FAQ
We're well-known as one of the leading uni welding neck flanges manufacturers and suppliers in China. If you're going to wholesale high quality uni welding neck flanges with competitive price, welcome to get more information from our factory. Also, customized service is available.
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