The GS40GI Repair Kit is useful for repairing most issues on Hypro D30 and D50 diaphragm pump regulators. For instance, if there is a lack of pressure when the control unit is cranked all the way down, the gasket seal, relief valve poppet retainer, or tension springs may be worn. This repair kit can restore normal flow from the pump bypass back to the tank.

9910-KIT1757 is the standard repair kit for the Hypro 9910-GS40GI Pressure Regulator. Includes Viton® relief valve seat for increased chemical resistance. Urethane seat, 9910-110121, available for purchase separately.

9910-KIT1757 Includes:

• Qty 1 9910-320433 Relief Valve Poppet Retainer
• Qty 1 9910-320511 Gasket Seal O-Ring
• Qty 1 9910-390140 Tension Spring Guide
• Qty 1 9910-320420 Tension Spring
• Qty 1 9910-450110 Spring Holder
• Qty 1 9910-110122 Relief Valve Seat