Pipe Connections - Davey Water Products HS Serie Instrucciones Para La Instalación Y Operación

Pipe Connections

For best performance use pipes at least the same
diameter as the pump's inlet and delivery outlet
openings. Larger diameter pipe may be used to
minimise resistance to flow when pumping longer
distances. When pump is installed with incoming
pressure (eg. boosting municipal supply) smaller
inlet and outlet pipes may be adequate.
Do not use pipe thread sealing compound on any part of this
pump. Only use teflon sealing tape.
NOTE: Suction leaks are the largest cause of poor pump performance and are
difficult to detect. Ensure all connections are completely sealed using thread tape
only. An air leak on the suction may not drip water!
Connection to your Water Source
FLOODED SUCTION - FROM CISTERN OR STORAGE TANK
Installations with flooded suction require a gate valve so water
supply can be turned off for pump removal and servicing.
Ensure wall socket is correctly grounded. Grounding of the
motor is essential for your protection and the protection of the
motor.
Failure to ground motor can cause severe or fatal electrical
shock hazard.
Do not ground to a gas supply line.
Supply voltage must be within +10% of nameplate voltage.
Incorrect voltage can cause fire or seriously damage motor and
voids warranty. If in doubt consult a licensed electrician.
If possible, connect pump to a separate branch circuit with no
other appliances on it.
Use 1" braided hose supplied to connect Hydrascan
discharge pipework. Ensure the gaskets are correctly sealed inside
the nut at each end of the hose. Use unions at pipe connections
to enable easy removal and servicing. Use sufficient tape to ensure
airtight seal and hand tighten only. To prevent strain on pump threads
always support heavy inlet and outlet pipes. If there is a likelihood the
water supply may contain solid particles such as pieces of plant or
vegetable matter, a filter should be installed before the pump to avoid
blocking of water ways. Ensure filter is cleaned regularly. Lay suction
pipe at a constant gradient to avoid air pockets which may reduce
pump efficiency.
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