onga B Series, Руководство пользователя

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4. INSTALLATION (continued)
d) Discharge
The length and diameter of the discharge hoses will affect the
pressure and flow rate at which your pump operates. Care should
be taken when selecting discharge pipe/hoses and fittings. Pressure
ratings of all components must exceed the maximum pressure of
the pump by an appropriate safety factor. We recommend the use
of the Onga’s own hose kit
•
Suitable for either flexible or rigid piping.
•
Models include 1" BSP or NPT side outlets.
•
Models include 1 ½” or 2" BSP or NPT front outlets.
All have 2" priming inlets
5. OPERATION
Connect suction piping, and ensure that the suction is completely
submerged. Remove the priming plug and fill the pump with water.
Your pump is equipped with a suction flap valve and is capable of
drawing air out of normal size suction pipes or hoses.
Replace the priming plug – screw it down tightly to seal.
Follow Engine Manufacturer’s Instructions for starting the
engine
.
If only a small amount of water is pumped, and then flow stops,
switch off the engine and check the suction pipe/hose assembly for
possible air leaks. Repair leaks before starting priming procedure
again.
Blazemaster single stage pumps, when filled with water, will
gradually draw air out of the suction line to a maximum prime depth
of 6m. The Blazemaster Twin models will prime to a maximum
depth of 3.5m. If priming a long or larger diameter pipe, additional
water may have to be added to the pump at 3-minute intervals.
Switch off the engine each time.
Do not remove any caps while the pump is operating.
Ensure that your pump is filled with water before
operating.