- A flange is an external or internal ridge, or rim (lip), for strength, as the flange of an iron beam such as an I-beam or a T-beam; or for attachment to another object, as the flange on the end of a pipe, steam cylinder, etc., or for a flange of a rail car or tram wheel. Thus flanged wheels are wheels with a flange on one side to keep the wheels from running off the rails. The term “flange” is also used for a kind of tool used to form flanges. The type of flange to be used for a piping application depends, mainly, on the required strength for the flanged joint. Flanges are used, alternatively to welded connections, to facilitate maintenance operations – Pipes with flanges can be assembled and disassembled easily. The flange is the second most used joining method after welding. A flanged joint is composed of three separate and independent although interrelated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter.
- Weld Neck Flanges is used where high pressure, high or low temperature conditions is required. These pipe flanges attach by welding the pipe to the neck of the flange. It helps in reducing the stress concentration from the bottom of the center. Compared with other types, weld neck flanges are known for their tapered hub and gentle transition from flange thickness to pipe wall thickness. They are deformation-resistant.
- Metallica offers the best weld neck flanges with a hub in varieties of specifications, grades, materials and sizes. When ordering a weld neck flange, it is essential to identify the schedule pipe being used for. This is because the inside diameter of the flange will match the inside diameter of your pipe. This flange has buttweld joint with the pipe along with the tapered hub, making this flange very resistant to dishing and a very sturdy connection. Weld Neck Flange is an ideal product used in extreme fluctuations of temperature and environments where there may be a lot of bending and handling of the flanges.Weld neck flange bore is machined to coordinate the ID of the pipe or fitting. This makes a smooth move to and from the weld neck flange and prevents turbulence. It helps in distributing the stress through tapered neck.
If you are looking to purchase Welding Neck flanges, please feel free to contact us on firstname.lastname@example.org. Top Quality Flanges at Low Price! Fast Delivery! 100% Refund!
|Alloy Steel Flanges||ASTM/ASME SA/A182 F1, F5, F9, F11, F22, F91|
|Stainless Steel Flanges||ASTM/ASME A182 F304, A182 F304L, A182 F304H, A182 F316, A182 F316L, A182 F316H, A182 F317, A182 F317L, A182 F321, A182 F321H, A182 F347, A182 F51, A182 F53|
|Duplex and Super Duplex Flanges||ASTM A 182 F51/ UNS S31803, F53/UNS S32750, F55/UNS S32760|
|Most Common Grade Carbon Steel Flange||ASTM/ASME SA/A105, 105N|
|Low Temperature Carbon Steel Flanges||ASTM/ASME SA/A350 LF1, LF2, LF3|
|High Yield Carbon Steel Flanges||ASTM/ASME SA/A694 F42, F52, F60, F65, F70|
Applications of Welding Neck Flanges:
Chemical, Oil Mills, Petrochemical, Mining, Refineries, Construction, Fertilizers, Shipbuilding, Power Plant, Steel Plant, Nuclear Power, Offshore, Oil & Gas, Defense, Paper, Ports, Breweries, Railway, Cement, Engineering Co., Sugar & Government Org. etc.
- Chemical and Physical characteristic: durable, corrosion resistant and high-temperature resistant.
- We also produce flange with special specifications according to customers’ requirements.
- No welding is needed
- Good for smaller pipe sizes
- Should be avoided for larger roads
|Design||According to EN Type||According to DIN|
|Weld Neck Flange||Type 11||DIN 2627 – DIN 2638|
|Blind Flange||Type 05||DIN 2527|
|Threaded Flange||Type 12||DIN 2558, DIN 2565 – DIN 2569|
|Flat Flange||Type 01||DIN 2573, DIN 2576|
|Lapped Flange||Type 02 & Type 04||DIN 2641, DIN 2642, DIN 2655, DIN 2656|
Similar to ASME flanges, EN1092-1 steel and stainless flanges, have several different versions of raised or none raised faces. According to the European form the seals are indicated by different form:
|Form: types of Contact Faces||DIN EN 1092-1|
|Without Raised Face||Form A|
|Raised Face (Rz = 160 Mechanical Turned)||Form B1|
|Raised Face ( Rz = 40 Mechanical Turned)||Form B1|
|Raised Face (Rz = 16 Mechanical Turned)||Form B2|
|Tongue According to DIN2512||Form C|
|Groove According to DIN 2512||Form D|
|Male According to DIN 2513||Form E|
|Female According to DIN 2513||Form F|
|Female According to DIN 2514||Form G|
|Male According to DIN 2514||Form H|