General Pump VH - Manual (Page 6)

GENERAL PUMP
A member of the Interpump Group
VH SERIES
Page 6
7. GENERAL INFORMATION ABOUT PUMP
USE
The VH pump has been designed to pump fresh filtered
water at room temperature.
7.2 Max flow and pressure ratings
The performance data indicated in the catalog and on the
rating plate refer to the maximum performance of the
pump. The use of the pump below the rated performances
does not allow the drop in power absorbed to be balanced
by altering the pressure or volume of the pump above its
maximum value.
7.3 Lowest operating RPM
The lowest operating speed for all VH pumps (all versions)
is 500 RPM.
8. CONNECTIONS AND PLUGS
VH pumps are provided with (Fig. 3):
1 - 2 inlet ports IN G 3/4”
Suction line connection to either inlet port is
acceptable, the port not being used should be
sealed with the correct plug.
2 - 2 outlet ports OUT Ø 8 mm”
3 - 2 outlet ports OUT Ø G 1/2” (designed for pressure
gauge and safety valve only)
4 - 1 hole DRAIN provided with quick coupling for
connection with Rilsan air hose Ø mm; it collects
the water drainage from the cooling system and
should be connected back to the suction line BEFORE
the feed pump.
7.1 Water temperature
The max water temperature is 30oC (86oF)
The VH pump is supplied with 4 conical seals (Fig 4)
made of stainless steel and designed to provide total
sealing of the outlet connections. They must be used in
either the outlet ports of the head or in the outlet ports
of the optional outlet mounting flanges. The conical
seals should be replaced at any disassembling and
not re-used.