คำอธิบาย
Shakti | Pump QF
Applications
The Pumps are suitable for the following applications:
- Raw water supply
- Irrigation systems
- Groundwater lowering
- Pressure boosting
- Industrial applications
Features and Benefits
A wide pump range
Applications
We offer a complete range of pumps and motors which as a standard are made completely of stainless steel AISI – 304. This provides for good wear resistance and a reduced risk of corrosion when pumping ordinary cold water with a minor content of chloride.
Bearings with sand channels
All bearing are water-lubricated and have a square shape, enabling sand particles, if any, to leave the pump together with the pumped liquid.
Inlet strainer
The inlet strainer prevents particles over a certain size from entering the pump.
Non-return valve
All pumps are equipped with a reliable non-return valve in the valve casing preventing backflow in connection with pump stoppage. Furthermore, the short closing time of the non-return valve means that the risk of destructive water hammer is reduced to a minimum. The valve casing is designed for optimum hydraulic properties to minimize the pressure loss across the valve and thus contributes to the high efficiency of the pump.
Priming Screw
All QF and QF 30 pumps are fitted with a priming screw. Consequently, dry running is prevented because the priming screw will make sure that pump bearings are always lubricated. Due to the semi-axial impellers of large QF pumps (except for QF30) this priming is automatically provided. However, it applies to all pump types that if the water table is lowered to a level below the pump inlet neither pump nor motor will be protected against dry running.
Stop ring
The Stop ring prevents damage to the pump during transport and in case of up-thrust in connection with a start-up. The stop ring, which is designed as a thrust bearing limits axial movements of the pump shaft.
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