of
INDUSTRIAL PUMPS
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TIGHTENING TORQUE TABLE
The following table shows the tightening torques referred to the construction components and their materials.
Tightening must be carried out respecting the tightening torques indicated by the Manufacturer and expressed
in Nm (newton meter), with reference to each model and construction material.
CAUTION: risk of stress corrosion cracking phenomena and sudden breakages.
Excessive tightening (especially on plastic pumps) can cause dangerous tensions on some components
and sudden breakages that cannot be attributed to construction defects.
PUMP Material
MAIN
BLOCK
PUMP
CASING
MANIFOLD CAP PLUG
OR-PTFE OR-NBR 1 M 2 M OR-PTFE OR-RUBBER
PP
PP
AL
PP
AL
PP
PP
AL
PP
AL
AL
PP
AL
PP
AL
PP
AL
PP
AL
PP
AL
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