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DOWNHOLE VALVE TO ELIMINATE GAS LOCK & FLUID
POUND IN BEAM PUMPING WELLS
The DARTT VALVE is a hydraulically-operated accessory which is
installed within the standard down hole pump without modifications to
the pump. The DARTT VALVE is actuated by the normal fluid or gas
pressures which exist within the pump. The DARTT VALVE takes the
guesswork out of whether or not the travelling
valve is opening and closing properly.
By design, on the upstroke, the travelling valve must close. On the
down stroke, the travelling valve must open. The DARTT VALVE causes
both of these actions to positively occur on each and every pump
stroke and the DARTT VALVE does
even more.
The DARTT VALVE can withstand difficult pumping conditions:
• Full gas lock
• Partial fluid fill
• Sand plugging, sand wear
• The high maintenance costs which these problems cause
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