VERDER VERDERAIR HC-PURE SB Series Manual page 9

7. Inlet pressure greater than 1 bar (15 PSI),
diaphragm life will be shortened.
Fluid outlet line
1. A shut of valve should be installed just after
the pump isolate the pump from the system
for maintenance and installation. A drain valve
should be installed to relief the pressure of the
pump.
2. Always use a flexible connection to avoid
vibrations being bought into the piping system.
The houses should be grounded.
3. For sealing use an appropriate sanitary gasket
compatible with the connections of the pump.
Fluid inlet and outlet ports
1. 1. VA-HCP SB series of pumps are having the
suction (bottom) and discharge (top) connections
directed towards the pump side housing.
Connection directions can be reversed with
respect to each other.
2. Examples of connections are shown in the figure
2a, 2b.
Installation remarks
1. VA-HCP SB pumps must be installed load free
to avoid possible damage of pumps and/or
installation.
2. VA-HCP SB pumps will be delivered with blind
plugs to prevent dust or other materials to enter
the pump. Those plugs have to be removed
before installing the pump.
3. As UV – radiation can damage Polyethylene.
This must taken in account by installing VA-HCP
SB pumps made out of PE (pump code VA-HCP
SBxx XG,)
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4. The air-valves used in VA-HCP SB pumps are
manufactured with tight tolerances. They should
be used with clean, dry and oil-free compressed
air. It the quality of the compressed air at the
pace where the pump is installed is not optimal,
it is possible to install a dryer and/or a water
separator. Please contact your distributor for
more detailed information.
5. VA-HCP SB pumps are dry self-priming. So
they don't need to be filled before first use. The
figures of the possible suction heights can be
found in the technical information (see page 22).
6. VA-HCP SB pumps will building up pressure
at the liquid side up to the pressure set on
the compressed air-inlet of the pump. If this
pressure is higher than the rated pressure of the
discharge line, a pressure relief valve or another
Figure 2a
pressure safety equipment should be installed at
the discharge side of the pump.
7. VA-HCP SB pumps can stall against a closed
discharge line without damage. The pump will
stop working when the pressure at the liquid
side of the diaphragms is equal (or higher) then
the compressed air pressure at the sir-side of
the diaphragm. As soon the pressure at the
liquid side will drop below the compressed air
pressure, the pump will restart automatically.
21-VA-MA_Manual_HC-PURE SB_rev1-en | 23.06.2023
Figure 2b
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