What does RTJ mean in flanges?

What does RTJ mean in flanges?

Ring Type Joint
The RTJ flange (Ring Type Joint) is designed for high-pressure and/or high-temperature pipeline applications. This makes them the required standard in API specification flanges. Applications include oil field valves, pipework assemblies, and high integrity pressure vessel joints.

What is the difference between RF and RTJ flange?

Answer: RF means “Raised Face.” RTJ means “Ring Type Joint.” RF flanges seal with a flat gasket, formerly made of asbestos but now made of more environmentally friendly material, designed for installation between the raised faces of two mating flanges (both with raised faces).

What is an RTJ connection?

A Ring type joint flange(RTJ) is a machined metallic ring with a deep groove cut into its face. This groove rests a metal ring which gets compressed when the connecting bolts of the flange are tightened. This compression results in a leak-proof, close-fitting seal on the pipe or connection.

Where is RTJ flange used?

RTJ flanges are commonly used for high-pressure and high-temperature applications in oil field valves, pipework assemblies, refineries, high integrity pressure vessel joints, chemical and petrochemical plants, etc.

How does a RTJ flange work?

A ring joint flanges (RTJ) is used when a metal-to-metal seal between the mating flanges is required (which is a condition for high-pressure and high-temperature applications, i.e. above 700/800 C°). A ring joint flange features a circular groove to accommodate a ring joint gasket (oval, or rectangular).

Does RTJ flange need gasket?

RTJ flanges have grooves in their sealing faces, while RF flanges do not. If you want to make a connection between the two flanges, you can only apply a flat gasket.

Can RF flange connect to RTJ flange?

RTJ Face flange can’t be matched with RF face, the main reason is the groove in the Raised face of RTJ. RTJ flanges have grooves in their sealing faces, while RF flanges do not.As usual,RTJ Flange need ring gasket.

Can RTJ gaskets be reused?

Coining deforms and yields the gasket hence its reuse will not reliably achieve the required seal….Is it safe then to reuse the gaskets only for hydrotest purpose.

What is an RTJ gasket?

Ring type joint gasket (RTJ Gasket) is a high integrity sealing gasket, high temperature and high pressure gasket for applications in petroleum industry, oilfield drilling, pressure vessels joints, pipes and valves etc from Goodrich Gasket Pvt. Ltd.