Characteristic

Ring Joint Gaskets are precision-engineered metal ring gasket. They are used in chemical plant, offshore and petrochemical industries. When the select on RTJ material, it will be suit with the service condition and compatibility with the media. The gasket material should be softer than the flange material without damaging the flange facing.

Application

Petrochemical industry, Electric power, Shipbuilding industry, Chemical plant, Valve bonnet, etc.

Hardness of Materials

* Measured with 3000kg load except soft iron which is measured with 500kg load
** Measured with 100Kg load and 1/16" diameter ball.

WOOJU GASPACK Style

Wj No.	Description	Cross-Section
Wj 3620	Oval Ring Joint The most common types of RTJ. It is able to seal in low tightening power, and has good seal ability in the initial installation.
Wj 3621	Octagonal Ring Joint The most common types of RTJ with Wj3620 It is less groove deformation than Wj3620, but needed higher tightening pressure.
Wj 3622	API Type RX Pressure Energized Ring Joint It is designed to fit flat and round bottom groove, and interchangeable with Wj3620 and Wj3621.
Wj 3623	API Type BX Pressure Energized Ring Joint It incorporates a pressure passage hole to allow for pressure equalization each side of the sealing faces.
Wj 3624	Modified Bridgeman Ring Joint It is unique type of RTJ using 'Bridgeman's Principle of Unsupported Area'. The gasket is designed to self-sealing by utilizing the increase of internal pressure.
Wj 3625	Delta Ring Joint The pressure-activated Delta cross-section is a pressure vessel or valve bonnet gasket, useful for pressure ranges of 344 bar (5,000psi)and higher.
Wj 3626	Lens Ring Joint It is for high temperature and high-pressure applications on pipework, valves and pressure vessels.
Wj 3627	Round Ring Joint The type of RTJ has round cross-section
Wj 3628	Diaphragm Diaphragm is a protective device used to protect workers and devices from explosion of gas cylinder, etc.
Wj 3629	Corrugated Gasket This gasket consists of a thin metal that is corrugated or embossed with concentric rings and faced with a soft material such as flexible graphite.