Water Powered Technologies has developed the Sureflow Valve to work with the Papa Pump and ensure seamless and automatic operation where flows are small, variable or intermittent. … As the water level in the supply tank drops, a float arrangement causes the Sureflow valve to close.
source/image(PrtSc): Water Powered Technologies
This is a video showing how the revolutionary Sureflow Control Valve system can control the Papa ram pump during times of low- or no-flow conditions. A ram pump is a water powered pump which enables you to pump water from a stream or river on your farm or off grid property and obtain free water for your livestock
With a Sureflow system fitted to a Papa Pump, as the level in the tank drops the float arrangement causes the rotary float valve to operate. This allows water pressure to act on the upper side of a diaphragm in the valve whilst venting pressure on the lower side of the diaphragm, thereby closing the valve and thus preventing water flow through the pump.
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Conversely, as the water level in the supply tank rises, it will cause the float arrangement to reverse the pressure on the diaphragm and allow the flow valve to re-open, automatically restarting the pump. At times of low-flow in watercourses, this system will also automatically restrict the abstraction of water when it is below a minimum level in accordance with environmental considerations. This allows the system to operate fully automatically to the mutual benefit of ourselves and the environment.
