Size: 1/2" (DN15) - 100" (DN2500)
Brand Name: Yaang
Class: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, etc
Specialize: As per drawing
BS4504, BS4504, BS1560, BS10, etc
Ring Type Joint Flange is a method of ensuring leak proof flange connection at high pressures. A metal ring is compressed into a hexagonal groove on the face of the flange to make the seal. This jointing method can be employed on Weld Neck, Slip-on and Blind Flange.
Low Temperature Carbon Steel Ring Type Joint Flanges (RTJ Flanges) : ASTM A350, LF2, LF3
Ring Type Joint Flanges (RTJ Flanges) are used in marine and offshore engineering.
Dimensions of Ring Type Joint Flanges (RTJ Flanges)
RTJ flanges have grooves cut into their faces which accept steel Ring Gaskets. RTJ flanges seal when tightened bolts compress the gasket between the flanges into the grooves, deforming (or “Coining”) the gasket to make Intimate Contact inside the grooves, creating a metal to metal seal.
An RTJ flange may have a raised face with a ring groove machined into it. This raised face does not serve as any part of the sealing means. For RTJ flanges that seal with BX ring gaskets, the raised faces of the connected and tightened flanges may contact each other. In this case the already coined gasket will not bear additional load beyond the bolt tension, vibration and movement cannot further crush the gasket and lessen the connecting tension.