Gasket between nipple and pressure gauge
The gasket between the instrument and the interchangeable connector is made of PTFE (Teflon) and is specially designed to create a perfect seal.
Always use the original gasket. The wrong gasket may lead to leakage and, at worst, measuring errors.
Always replace the gasket if the connector has been dismounted.
Gasket between connector and external fitting
Fibre or copper gaskets are ideal for sealing the join between the connector and, for example, the valve on which the pressure gauge is mounted.
Never use fibre or copper gaskets between the instrument and the connector.
Connector mounting or replacement
Tightening momentum: DN63 14 Nm
all others 20 Nm
Due to the stress deformation of the PTFE gasket, the connector should be tightened immediately before mounting the pressure gauge.