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NT 1005-C00 09 18 Pump AF TM H e
INSTALLATION
Rotation
MOUVEX pump is reversible. Suction and discharge ends
are bound to rotation as indicated on plate fixed to pump.
Bypass orientation
Operation
Acting as a relief valve, the bypass protects pump and auxilia-
ry equipment from damage due to excessive pressures that
may be built up when the pump runs against some obstruction
in the discharge piping.
When discharge pressure reaches the pressure limit for which
the bypass is set, valve
803
opens and thus allows the liquid to
be circulated from the discharge side back to the suction side.
Orientation
The single bypass protects the pump in one direction of rota-
tion only.
Therefore make sure it is rightly installed by checking that
bypass cap is on the suction side and reverse bypass if
necessary.
Reversing
To reverse bypass, remove nuts
814
and rotate bypass body
by 180°.
Check gaskets
877
.
Tighten nuts
814
taking care to keep bypass on end.
Motor protection
As the bypass protects the pump only, electric motors should
be equipped with their own protection device.
D : Bypass
E : Bypass cap
F : Fixing stud and nut
G : Bearing nipple
