Space Requirement; Pipework; Suction Pipes Connected To A Well - Watts MQ 3-45 Instrucciones De Instalación Y Funcionamiento

8.3 Space requirement

For inspection and service, allow a minimum
clearance of 6" behind the pump.
Fig. 5 Minimum clearance behind the pump
Being self-cooling, the pump requires no space or
ventilation at the sides.
NOTICE
Ensure that the maximum ambient
temperatures do not exceed the values
stated in section 7. Operating conditions.

8.4 Pipework

NOTICE
Never use unnecessary force when
connecting the pipes.
The pump is supplied with 1" NPT screwed
connections. Fit the connections in the suction and
discharge ports. See fig. 6. The pump discharge port
is flexible, ± 5 °, to facilitate the fitting.
Fig. 6 Fitting of screwed connections in suction
and discharge ports
Carefully screw the discharge connection into the
discharge port, using a spanner or similar tool.
Hold the discharge connection, and tighten the pump
discharge union nut with your hand. See fig. 7.
6"
Fig. 7
Fig. 8

8.4.1 Suction pipes connected to a well

If the pump draws water from a well, we recommend
to fit a foot valve to the end of the suction pipe.
See fig. 9.
Fig. 9
Correct: Tighten the discharge
union nut with your hand
Wrong: Do not use a tool to tighten
the discharge union nut
Foot valve
Suction pipes connected to a well
9