The JAP series by Davies Pumps is a type of self-priming deep well pump that comes with a separate jet and venturi assembly. This unique feature enables the pump to operate efficiently even when the water source is located up to 50m below the pump or at a long distance away. These pumps are particularly useful for drawing water from sources such as bores, wells, or rivers that are prone to flooding, or in areas with limited access to power supplies.
The JAP series features a rugged cast iron casing that is closely coupled to an air-cooled electric motor, making installation easy and ensuring a long service life. The 1.0 hp model is designed with a single impeller for a cost-effective solution that is best suited for tank filling. The larger models, on the other hand, are equipped with twin impellers that allow for higher pressures and flows, making them ideal for more demanding applications.
Features
- Separate Deep Well Jet and Venturi Housing
- Cast Iron Housings
- Robust and reliable
- Suction depths of more than 8m
- Maximum liquid temperature 60 degrees
- 2 Years Warranty
Installation
- Before installing the pump, verify that all the pipes are clean inside to avoid any obstruction in the ejector nozzle.
- A foot valve must be installed at the foot of the ejector.
- After the pump is installed, fill pipes with clean water.
- To preserve an efficient priming a specific pressure in the circuit is necessary – a gate valve on the discharge can achieve this.
- Note: Minimum pump operating heads must be observed.
Construction Material:
- Pump body: Cast iron G20 with anti-corrosive coating.
- Motor bracket: In die casting aluminium UNI 5076 and stainless steel Aisi 304 (cast iron for Jap 150-200).
- Ejector: Cast iron G20 with anti-corrosive coating.
- Diffuser, Nozzle & Venturi tube: GE Noryl® GFN2.
- Impellers, GE Noryl GFNZ (stamped brass UNI-EN 12165 standard for model 151-201.
- Pump shaft: Stainless steel Aisi 420A.
- Mechanical seal: Carbon-ceramic.
