Ring joint gasket
These gaskets are made of single metal to be used for pipe flanges in the lines handling high temperature & high pressure steam, as well as for ring joint flanges of valve bonnets.

- VALQUA No.
- 550-ZW
- Product name
- Double Cone shaped gasket(Double cone)
- Features1
- Ring Joint Gasket is made of single metal to be used for pipe flanges in the lines handling high temperature & high pressure steam, as well as for ring joint flanges of valve bonnets.
- Features2
- It can reduce the strength of bolts and flanges compared to simple compressed metallic gasket.
- Features3
- No. 550-ZW is self-seal type gasket with a double corn cross section. When of soft iron, often used with aluminum board or expanded graphite tape (VF-70). Precision surface finishing is not needed so that there is no damage to the sealing surface.
- Applicable fluids
- Water, Sea water, Hot water, Steam,Crude oil, Alcohol, Animal & vegetable oil, Heat transfer oilGeneral solvent, Weak acid, Weak alkali,Strong oxidizing acid, strong alkali,Air, Nitrogen gas, Inert gas,Exhaust gas,Inflammable gas,Poisonous,Oxygen,Extremely low temperature liquids,
- Inappropriate fluid
- Type
- Remarks
- Application
- Used for vessel or cover of heat exchanger at high temperature and high-pressure.