A weld neck flange is a type of flange that is joined to a piping system by butt welding. The flange consists of a circular fitting with a protruding rim around the circumference. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts. The flange also has a long tapered hub that gradually meets the wall thickness of the pipe or fitting. Technical Specifications: Materials: Carbon steel, stainless steel, duplex steel, alloy steel, etc. Dimensions: 1/2" to 24" Class range: Class 150 to 2500 (ANSI/ASME B16.5) Type: RF,FF,RJT PN range: PN 2.5 to PN 250 Hub length: Short hub (SH), Long hub (LH), Extra long hub (XH) Finish: Black, mill finish, painted, etc. Advantages of Weld Neck Flanges: Increased strength and durability Reduced stress concentration Smooth transition from flange thickness to pipe or fitting wall thickness Easy to radiograph for flaw detection Can be used in high pressure and high temperature applications Applications: Power plants Chemical plants Oil and gas industries Water treatment plants HVAC systems Other industrial applications
API 6A Weld Neck Flanges are pipe flanges attach by welding the pipes to the neck of the flanges. This transfers stress from the flange to the pipe instead. It also reduces the stress concentration from the base of the hub. Welding neck flanges remove stress concentration and allow full working pressure and they are often used for high pressure applications. The inside diameter of the flange is designed to match the pipe's inside diameter. Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing.
Welding Neck (WN) FlangeThe Welding Neck (WN) Flange is a flange designed to be welded to a pipe. The flange has a long tapered hub that is welded to the pipe to form a strong, leak-free connection. The flange also has a flat circular plate with bolt holes to secure the flange to another flange or piece of equipment. Description A Welding Neck (WN) Flange is a type of flange used in piping systems to connect pipes and equipment together. It is designed to be welded to the pipe or fitting and then bolted to another flange or piece of equipment. The WN flange has a long tapered neck that is welded to the pipe or fitting, and a flat face that extends out from the neck. The flat face of the flange provides a surface for the gasket to seal against, and the bolts are tightened to compress the gasket and create a leak-tight seal. The neck of the WN flange also provides reinforcement to the connection, which makes it suitable for use in high-pressure and high-temperature applications. The tapered design of the neck reduces stress concentrations and distributes the load evenly across the flange, which helps to prevent leaks and failures.
Code No. JSI -68
Long-necked flanges, also known as LWN flanges, are similar to the standard weld neck flanges but the neck is considerably longer. This type of flange is often used as a nozzle for a barrel or a column. They can be classified later as standard type, heavy gun type, variable body type and whole body type. These flanges are kind of exclusive for the reason of their uncomplicated connectivity with other pipes. Where standard weld neck flanges are used extensively for pipes, long weld neck flanges (often abbreviated to LWN) are used in high pressure and high (or fluctuating) temperature situations primarily in the oil and gas industry. The long neck guides the pipe into the flange itself and provides reinforcement that a standard weld neck flange cannot. This reinforcement is very important for safety in high pressure industrial, commercial and even residential systems. Uses of long-necked flanges are primarily on vessels where an elongated neck is required. Long-necked flanges (LWN) are primarily utilised on vessels where an elongated neck is required. This is considered a specialty flange because of the protruding neck or hub, which acts as a boring extension. The conical collar helps reduce the thickness of the steel and appears to be a pipe extension. LWN steel flanges are used primarily in the chemical and petroleum industries, as well as in commercial and residential buildings ASME 16.47 anf asme 16.5 series of long weld flanges are used exclusively for situations in high levels of stress and fluctuating temperatures.
Size: 1/2"-72" Type: Welding neck flange Standard: asme b16.5 asm e b16.47 mss sp-44 en 1092 Material:stainless steel, carbon steel, alloy steel Qualification:Iso9001 api ce Packing:Wooden case&pallets Application: petroleum, chemical, machinery, electric power, shipbuilding, papermaking, construction, etc Testing:Direct reading spectrometer, hydrostatic test, x-ray flaw detector, ultrasonic flaw detector, magentic particle inspection, etc Special design available as the requirement of customer Wooden case&pallets
Material: SS304, SS316. Standard: ANSI, DIN, UNI, EN, JIS, GB, ETC Type:slip on, plate, blind, threaded, welding neck, and other special mode. In wodden case.
high pressure flange,butt welding neck flange 1) Specification: DN15-DN2000 2) Size: 1/2 - 36" 3) Standard: ASME, ANSI, JIS, BS, and DIN 4) Material: stainless steel such as 304/304L/316/316L/316Ti/321; 1.4301/1.4307/1.4401/1.4404/1.4541/1.4571 super duplex stainless steel such as ASTM A182 F51/F53 5) Can produce according to customers' demands
Long welding neck flanges of 4'' in 347 H (1.4550) Long welding neck flanges of 4'' in 347 H (1.4550)
1.standards: ANSI,BS,,API ,DIN,MSS,JIS,ISO,AWWA,SANS,GOST Etc. Non-standard:Produce as per clients drawings is available. 2:type: Slip-on,Welding Neck,Socket Welding,Blind,Thread,Lap-Joint Long Welding Neck,Light Weight,Orfice. 3:Size:1/2"~48" 4: Pressure:Class 150,300,600,900,1500,2500 5:Materials: Froged Cardon Steel,Stainless Steel,Alloy Steel ASTM A105,A105N,ASME SA105,SA105N,ST37.2 ASTM A694-F42,F46,F48,F50,F52,F56,F60,F65 ASTM A182,F304,304L,F316,316L,F321,F11
Weld neck flanges are drilled (machined) with the wall thickness of the flange having the same dimensions of the matching pipe. The lighter the pipe is, the larger the bore, conversely, the heavier the pipe, the small the bore. Our range weld neck flanges, welding neck flanges are normally used for high-pressure, cold or hot temperature. We specialize these flanges in different dimensional and material specifications based upon the requirements of the clients.
Face: Rised Face(RF), Full Face(FF), Ring Tongue Joint(RTJ). Payment Term: L/C MOQ: 10 Piece/Pieces Means of Transport: by sea / by air Supply Capacity Production Capacity: 200 ton/month Packing: wooden cases Delivery Date: 15 days.
Description: API 6A Weld Neck Flanges� are pipe flanges� attach by welding the pipes to the neck of the flanges. This transfers stress from the flange to the pipe instead. It also reduces the stress concentration from the base of the hub. Welding neck flanges remove stress concentration and allow full working pressure and they� are often used for high pressure applications. The inside diameter of the flange is designed to match the pipe's inside diameter. Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing. Specifications: Size: 1-13/16" - 26-3/4" Working Pressure: 2000PSI, 3000PSI, 5000PSI, 10000PSI, 15000PSI, 20000 PSI Material: AISI 4130(forged)/ SUS316/Inconel 625 Face: FF, RF, RTJ Connection: bolted or studded Temp Class: L-U Material Class: BB, CC, DD, EE, FF Product Specification Level: PSL1, PSL2, PSL3, PSL4 Performance Requirement: PR1, PR2 Standards: API 6A, NACE MR0175, ISO 9001, ISO14001, ANSI
Description: API 6A Weld Neck Flanges are pipe flanges attach by welding the pipes to the neck of the flanges. This transfers stress from the flange to the pipe instead. It also reduces the stress concentration from the base of the hub. Welding neck flanges remove stress concentration and allow full working pressure and they are often used for high pressure applications. The inside diameter of the flange is designed to match the pipe's inside diameter. Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing.
Certified by API and ISO High quality Various model and dimensions are available Large number of stock Durability Delivery on time Competitive price Wooden
China manufacturer of ASME B16.5 A105 Class 150 2 Inch Carbon Steel Welding Neck Flange Type: Weld Neck, Ring Joint ,Slip On, Blind, Lap Joint, Standard: ASME B16.5 Material: A105 Manufacturing Method: Forged Pressure: Class150-Class2500 Surface: Oiled , Painted Third Party Inspection: SGS BV etc. Packing: By Wooden Case or Pallet Payment Term: At buyer's option
Stainless Steel Weld Neck Flange GRADE 304, 316, 304L, 316L, 202 ETC... SIZE: 1" NB TO 26" NB CLASS : 150# TO 2500# Also: As Per Drawing (customised)
Carbon Steel Forged Weld Neck Flange A carbon steel weld neck flange is a type of flange used in piping systems. It is made from carbon steel, which is a common and widely used material in various industries due to its strength and durability. The weld neck flange is specifically designed to be butt-welded to the pipe, providing a strong and leak-proof connection. Description Carbon steel weld neck flange is made of carbon steel with a forging process, It consists of a circular fitting with a protruding rim around the circumference. These flanges are typically butt welded to a pipe, the rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts. Design: A weld neck flange has a long tapered hub that is welded to the pipe, providing reinforcement and stability to the joint. The flange also has a flat, circular plate with bolt holes to connect it to another flange or equipment. Welding: The flanges are designed to be welded to the pipe or fitting. The neck of the flange is welded to the pipe, creating a strong and leak-resistant connection. Size Range: The flanges are available in a wide range of sizes to accommodate different pipe diameters and system requirements. Applications: Carbon steel weld neck flanges are commonly used in industries such as oil and gas, petrochemical, power generation, and water treatment. They are suitable for high-temperature and high-pressure applications. Advantages: Provides excellent structural support and stability to the joint. Reduces stress concentration at the base of the flange due to its tapered design. Offers good resistance to corrosion and high temperatures when made from carbon steel.
Standards ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings Size 1/2" NB TO 48" NB Designation A 182 / A 240, SA 182 / SA 240 Class 150#, 300#, 400#, 600#, 900#, 1500# & 2500#. Grade ASTM A182 F304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L ETC.
Weld neck flanges - ansi b16.5 Class; 150lb-2500lb Forged carbon astm a105 Nps: 1/2-48 Pipe outside diameter: 0.840-24 inches Weight: 0.48-115kg/in piece Notice: weights are based on manufacturer¡¡¥s data and are approximate. Product-level certifications: Api specification q1:q1-2021 Current export markets: Asia Australasia Central/south america Eastern europe Mid east/africa North america Western europe Other export markets: All over the world Litas lee, Telephone: 02287802560 Whats app:8615522509091 E-mail:sale01(at)tianjin-all-best.Com Fax:02287808131 S k ype: litas.Lee520 Qq:482171537 Tianjin all best international ltd Sunny plaza, huanghe road, nankai district, tianjin, china Factory: xiwang new district, mengcun, cangzhou, hebei, china We offer free samples, with shipping and taxes paid by the buyer
