When using abrasive feed chemicals, the diaphragm service life is
reduced. In these cases, more frequent checking of the diaphragm is rec‐
ommended.
Data Value Unit
Tightening torques for dosing head
screws:
4.5 ... 5.0 Nm
WARNING!
Warning of eye injuries
When opening the relief valve, a spring under high ten‐
sion can jump out.
– Wear protective glasses.
Tightening torques
Liquid ends with integral relief valve
Maintenance
47
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