Weld Neck Flange

  • Robust in construction.
  • Longer functional life.
  • Corrosion resistant.

Description

Weld Neck Flange

API 6A Weld Neck Flange are pipe flanges attach by welding the pipes to the neck of the flanges. This transfers stress from the flange to the pipe instead. weld-neck-flange also reduces the stress concentration from the base of the hub.

Welding neck flange 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 flange are typically provided with a raised face, flat face, or RTJ facing.

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

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