Vogelsang VX Series, Руководство пользователя

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Service Manual
Service Manual
Pump Models:
VX Series Q Pumps
Repressurizing Pump after completed maintenance
The pressurized buffer chamber canister (oil bottle) provides a constant pressure against the
mechanical seal helping to prevent infiltration of material from a higher pressure in the
pumping chamber. The semi-opaque container also allows easy monitoring of the oil level.
1. Fill the buffer chamber completely using the same oil as that used in the gearbox, ie.
80W90 hypoid gear oil.
2. If a non-pressurized oil bottle has been previously installed, remove and discard the bottle
and the check valve installed under the bottle. Install the pressurized oil bottle, screwing it
directly to the buffer chamber. On belt drive units, a hose kit is necessary to mount the
bottle in a remote location.
3. Fill the pressurized oil bottle about 1/4 full with buffer chamber oil (see above). Using the
supplied hand pump, pressurize the buffer chamber using the formula: 1/2 of normal
pump operating pressure plus 7 psi. For example, if your pump normally has a pressure
head on the suction side of 2 psi and a discharge pressure of 30 psi, the operating
pressure is 32 psi. Pressurize the oil bottle to (1/2 x 32) + 7 = 23 psi.
It’s as easy as a b c. Just fill in the blanks:
Step
Suction
Pressure
Plus
Discharge
Pressure
Equals
Operating
Pressure
a
+
=
Operating
Pressure
Divided by
Equals
½ Differential
Pressure
b ÷ 2 =
½ Differential
Pressure Plus PSI Equals
Gauge
Pressure
c + 7psi =