Use; Priming; Machines Installed Under Head; Machines Installed Above Head (Suction Mode) - STA-RITE vx Manual Del Producto

4. USE

Attention Never start the machine before filling it with
fluid as shown in "Use", "Priming".
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VX-F 32

4.1 Priming

A machine is considered under head if, in
closed circuit systems, the level of the fluid
to be pumped is above the suction inlet of
the machine

4.1.1 Machines installed under head

Carry out the following operations to fill a machine under head:
- Close the gate on the delivery piping
- Unscrew the priming cap
- Loosen the air valve (if present)
- Slowly open the gate on the suction piping
- When the fluid comes out in a continuous way from the priming
cap, carry out the following operations:
-- Screw the priming cap
-- Tighten the air valve (if present)
-- Completely open the gate on the suction piping
-- Open the gate on the delivery piping
Danger Make sure that the priming cap and the air
valve are perfectly tightened
Danger If the fluid flowing in the pipes and circulat-
ing in the machine has a temperature
higher than 65 °C, Use overall and gloves
protecting against high temperatures

4.1.2 Machines installed above head (suction mode)

A machine is considered above head if, in
open circuit systems, the level of the fluid
to be pumped is under the machine suction
inlet
Carry out the following operation to fill the machine above head:
- Open the gate on the suction piping
- Close the gate on the delivery piping
- Open the priming cap
- Loosen the air valve (if present)
- Rotate the drain and/or discharge cap counterclockwise (if
present)
- Pour the liquid in the machine through the priming cap until it
comes out from it
- When it is no more possible to further fill the machine, carry out
the following operations:
-- Tighten the air cap
-- Tighten the drain and discharge cap (if present)
-- Tighten the air valve (if present)
-- Start the machine
-- Open the gate on the delivery piping
-- Loosen the air valve
-- When the fluid comes, tighten the air valve (if present) or
open the priming cap
-- Stop the machine