Installation, 3 installation steps for npt connections – KROHNE OPTIBAR P 1010 C EN User Manual
Page 13

INSTALLATION
3
13
OPTIBAR P 1010 C
www.krohne.com
06/2014 - 4002622102 - MA OPTIBAR P1010C R02 en
3.3.1 Installation steps for connections acc. to DIN 3852
• Make sure that the O-ring fits properly in the intended groove.
• Ensure that the raised face of the receiving part has a smooth surface.
• Screw the device into the thread by hand.
• Devices with wrench flats must be tightened with a wrench. For information on tightening
torque refer to the following table.
3.3.2 Installation steps for connections acc. to EN 837
• When sealing, use a suitable gasket that corresponds to the product and pressure to be
measured (e.g. a copper gasket).
• Ensure that the raised face of the receiving part has a smooth surface.
• Screw the device into the thread by hand.
• Then tighten the device with the wrench.
3.3.3 Installation steps for NPT connections
• When sealing, use a suitable sealing agent that is compatible with the product (e.g. PTFE
tape).
• Screw the device into the thread by hand.
• Then tighten the device with the wrench.
Wrench size
Tightening torque [Nm]
Wrench size of steel
Wrench size of steel
Wrench size of steel
Wrench size of steel
G1/4
approx. 5
G1/2
approx. 10
G3/4
approx. 15
G1
approx. 20
G1 1/2
approx. 25
Wrench size of plastic
Wrench size of plastic
Wrench size of plastic
Wrench size of plastic
All sizes
max. 3
Wrench size
Tightening torque [Nm]
G1/4
approx. 20
G1/2
approx. 50
Wrench size
Tightening torque [Nm]
1/4 NPT
approx. 30
1/2 NPT
approx. 70