MULTIQUIP QP303H Specifications download pdf (Page 13)

QP-303H CENTRIFUGAL PUMP — PARTS MANUAL— REV. #0 (01/30/06) — PAGE 13

Figure 2 shows a typical application using the QP-303H centrifugal pump. Please note that this pump is intended for the removal of

clean water and water containing some debris and solids. Maximum size of solids should not exceed 1 inch (25 mm) in diameter. DO

NOT set strainer on bottom of water bed. Placing the strainer above the water bed will prevent the pump from drawing in excessive

amounts of sand and foreign debris.

1. Pump – The model QP-303H is 3-inch centrifugal pump

used in general de-watering applications. Typical

dewatering applications consist of manholes, septic tanks,

fast and slow seepage ditch water, silt water, mud water

and muck water.

2. Fill Cap – Prior to operation, the pump casing should be

filled with water. Remove this cap to add water to the pump.

After the initial prime, a sufficient amount of water will be

retained in the casing so that the operator will not need to

re-prime later.

If the casing is dry or has insufficient water, the pump will

have difficulty in priming which could lead to premature

mechanical seal wear thus causing damage to the pump.

3. Discharge Port – Connect a 3-inch discharge hose to this

port.

4. Worm Clamp – Used to secure the hose to the inlet and

outlet ports on the pump. Use two clamps to secure the

hose on the inlet side of the pump.

5. Discharge Hose – Connect this flexible rubber hose to

the discharge port on the pump. Make sure that the hose

lays flat and is not kinked. Use only recommended type

discharge hose. Contact Multiquip parts department for

ordering information.

6. Suction Port – Connect a 3-inch inlet hose to this port.

Use two worm clamps to secure the hose.

7. Suction Hose – Connect this flexible rubber hose to the

suction port on the pump. Make sure that the hose lays flat

and is not kinked. Use only recommended type suction

hose. Contact Multiquip parts department for ordering

information.

8. Drain Plug – Remove this plug to drain water from the

pump.

9. Strainer – Always attach a strainer to bottom side of the

suction hose to prevent large objects and debris from

entering the pump. Strainer should be positioned so that it

will remain completely under water. Running the pump with

the strainer above water for long periods can damage pump.

QP-303H — PUMP COMPONENTS

Figure 2. QP-303H Pump Application

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