Injection Pressure Operated Valves
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The valve is designed with a sealed chamber, including a bellows assembly that contains a nitrogen charge over dampening fluid. The bellows serves as an interface between the dome pressure and injection gas pressure. The dome charge provides the closing force of the valve. When injection gas pressure exceeds the closing force, the bellows compress, lifting the valve stem off the seat, allowing gas to be injected through the valve and into the tubing.
The RIPO valve consists of a tail plug, upper packing, bellows assembly with valve core and bellows, bellows housing, stem with tungsten carbide ball, seat housing, floating seat, lower packing, lower packing retainer, and nose with reverse flow check dart with optional choke sizes. The valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2. Packing and elastomeric materials for the valve are available for standard and special service.