More than 20 thread types available eg. G½B, ½ NPT, M12×1,
All TEMPRESS pressure gauges, with the exception of one, are supplied with the interchangeable connector that best meets the customer’s requirements. Should a thread other than the original be required, the nipple can be easily exchanged for one from the chart below.
NB. DN80 duplex and differential pressure gauge
80M11 / 80M51 / 80M12 / 80M52
use two nipples for DN63, see table 2
80M21 / 80M61 / 80M22 / 80M62
use 1 nipple for DN80 (bottom), see tabel 1
use 1 nipple for DN63 (top), see table 2
NB. DN63 pressure gauge with rear center connection
This instrument type does not have an interchangeable connector.
Pressure conversion table
All interchangeable connectors have a thread in the internal inlet hole for mounting a throttle screw.
The role of the throttle screw is to even out pulsations in the medium before it reaches the measuring system. This restricts the amount of pointer vibration, allowing the precise pressure to be read.
Throttle screws are available in standard and heavy duty versions. The standard throttle screw should always be used for pressures of ≥60 bar. However, it should also be mounted for lower pressures where pulsations in the me- dium occur. The heavy duty version may be used where large pulsations and pressure peaks occur in the medium
The interchangeable connectors with M12, M14 and M16 thread types are designed for a compression connection. This method of connection requires only a Ø6, Ø8 or Ø10 mm tube without a collar. Using a union and olive, the tube is mounted directly on the connector
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.
TEMPRESS reserves the right to changes without notice Last modified date: 08-12-2021