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    • Keraflo A/KB50SF 2” - 50mm Variable Delayed Action Float Valve Aylesbury #1882

    Keraflo A/KB50SF 2” - 50mm Variable Delayed Action Float Valve Aylesbury #1882

    £749.00GBP
    ThePumpDealer
    01803 220416
    2 year guarantee on all of our new pumps
    6 Month guarantee on all of our used pumps
    Please call us for free advice on replacement
    We also take card payment over the phone
    We buy and sell new and unused pumps
    

    Can deliver for next day if ordered before 4pm 
    Same day delivery possible please call for a quote
    MAJORITY OF OUR PUMPS ARE NEW, UNUSED, NEVER BEEN FITTED SURPLUS STOCK


    WORLDWIDE DELIVERY AVAILABLE

    Internationally for free we ship to:
    Aland Islands, Armenia, Austria, Belarus, Belgium, Bosnia And Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Georgia, Germany, Greece, Guernsey, Hungary, Iceland, Ireland, Isle Of Man, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Republic Of, Moldova, Republic of, Monaco, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain (50 of 52 provinces), Sweden, Switzerland
    For Free under 30kg
    

    2-3 Day shipping internationally




    Condition: brand new in box. Box tatty from storage


    RRP £699

    Aylesbury ‘KB’ type float valves are operated by a transfer of weight in an actuator tube which causes the valve to open or close. The arrangement of the float and buoy assembly produces a delayed change of balance in the actuator as the water level alters. The total assembly is relatively light with no pressure related stresses. As a result, the valve does not require any supporting structure.

     

    Aylesbury ‘KB’ type float valves have a variable delayed action and feature a chain in place of a rigid float arm, enabling virtually unlimited opening and closing levels. This allows for a considerable drop from the valve to the water level, overcoming issues associated with drop arms.

     

    The versatility of the Aylesbury ‘KB’ type float valves also make them suitable for installation either directly into a tank or into a raised valve chamber, particularly where air gaps are required. Changes in water levels and differentials can be made quickly by the installer or maintenance engineer without tools.

     

    This feature is particularly useful where water demand changes either due to seasonal factors, building occupancy or where the commissioning of a facility is phased, as it reduces the risks associated with excess water being stored for too long.

     

     

    Applications

    This unique valve is ideal for use with pumped systems, water treatment plants and many other applications including:

    • Industrial tanks 
    • Pumped systems 
    • Underground tanks 
    • Rain (grey) water tanks and reservoirs
    • Industrial feed and expansion tanks
    • Process tanks

     

    The flexibility of ‘KB’ valves can assist with improving water quality where buildings are partially commissioned or occupancy varies, at different times of the year.

    Air Gaps for Industrial Tanks

    The ‘KB’ Type is ideal for fitting into a tank without a lid or raised valve chamber and where the vertical drop from the valve to the water level may be considerable.

    Pumped Systems

    The adjustable and potentially large difference between opening and closing levels can allow a large volume of water to be admitted to the tank each filling cycle. Pumps and pump sets are often controlled to run for a minimum of 3 minutes. If the water demand is satisfied before this time and an auxiliary hydraulic accumulator is not fitted, the pumps will run against a closed valve at zero efficiency.

    The fill volume can be set to equal or exceed this volume to ensure the pump/s run for at least 3 minutes. Where a pump set is used solely for transferring water from a break tank to an elevated storage tank the ‘KB’ Valve can dispense with the need for an auxiliary hydraulic accumulator.

    Pump efficiency and initial sizing can be further enhanced using a float valve with little internal resistance. Consequently the High Flow version is often better suited to these applications than the Standard Flow version which is ideal for mains water pressure applications.

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