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Jobe 1" Supplemental Fill Valve

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  • Product Description

    Want to have a back-up water supply for your cistern/rain tank in case of drought? Our industrial-strength Jobe Topaz 1" Differential Valve is the perfect product for bringing in a well water or municipal water supply to your rain tank when the tank runs low. 


    Topaz Differential valves are especially ideal for use in water tanks which are filled by a pressure system controlled water pump. The valve gives a level difference which is adjustable from 2 inches (50mm) up to 8 ft (2.5m) to minimize starting and stopping of the pumping system.


    • High flow

    • Start and stop levels can be easily adjusted to give water level differentials from 2 in. up to 8 ft.

    • Keeps pump operation to a mininum.

    • Detach Valve Seal Access System for quick access to valve seal (Patented)

    • Ideal for all makes and models of tanks. 

    • 1" (25mm) inlet size


    Principle of Operation

    • The valve mounts at the top of the tank. It fits easily through a thin walled tank or screws into a threaded tank inlet.

    • As the tank empties the weighted float travels down the cord until it hits the bottom stop. The valve then opens immediately to give a full flow.

    • The valve now runs constantly and the weighted float rises until it hits the upper float stop. This lifts the arm and the valve shuts down.

    • Observe the pressure that your pump runs at while the tank is filling. Set the pressure switch to turn the pump off
    at a pressure at least one bar above the running pressure. 


    Pressure Range

    1 Bar – 10 Bar (15psi-150 psi) 


    For data sheet, click here.

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