C-3
PVG
The PVG (Figure 53) is mounted on the pump operator panel. The PVG is a combination valve
and switch. When the PRIME handle is pulled out, the valve opens and the switch energizes the
primer motor. Pushing the handle de-energizes the motor and closes the valve.
Figure 54. PVG Priming Valve
SPV/SPVR
The SPV/SPVR (Figure 54) simplifies the priming operation of your booster pump allowing for
faster priming and longer primer life. The SPVR is a remotely mounted valve (the SPV) and a sep-
arate panel mounted switch (the PRIME button).
The SPV is a diaphragm operated valve that opens using the vacuum generated by the priming
pump and automatically closes when prime is established. The valve is attached to the priming
tap on the volute of the booster pump and is connected to the priming pump by a hose.
When the PRIME button is pushed the switch energizes the priming pump motor. Releasing the
button de-energizes the motor.
Figure 55. SPVR Priming Valve
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