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2.19
Pipework Connections:
Isolating valves:
Always install isolating valves (not supplied) to
both suction and delivery pipe to aid future maintenance.
a) Incoming mains pressure can vary, but must never exceed 6 bar. If there is
a possibility of exceeding 6 bar, separate inlet pressure control must be fitted.
b) It is advisable to fit a bypass pipe and isolating valves. This will allow
removal of the pump for maintenance and servicing, and ensure the water
supply into the property is still available during that period (Fig. 3).
Fig. 3
Fig. 2
Typical installation
Mains water
stop cock
Inlet (see note ‘a’ below)
Mains
water
supply
Bypass (see note ‘b’ below)
(Not supplied)
