Working Principle

Valve Closing Mode The valve closes when the pilot system directs line pressure into the control chamber (the area above the diaphragm). This pressure, combined with the force of the internal spring, generates a downward force that exceeds the upward line pressure. As a result, the diaphragm is pushed down, creating a secure, drip-tight seal. Valve Opening Mode To open the valve, the pilot system vents the control chamber, releasing the pressure from above the diaphragm. Once this closing pressure is removed, the upward line pressure easily overcomes the spring force, lifting the diaphragm and allowing the valve to reach its fully open position. Modulation Mode In modulation mode, the valve is held in a partially open position to regulate flow or pressure. The pilot system continuously and precisely adjusts the pressure within the control chamber to maintain an exact balance between the opening force (line pressure) and the closing forces (chamber pressure plus spring). This equilibrium holds the diaphragm steady at an intermediate position, ensuring stable and accurate flow regulation.

ADVANTAGES

Engineered for Simplicity and Reliability: With the diaphragm as its only moving part (no bearings, shafts, or bushings), the valve offers an incredibly long service life with minimal wear and tear, ensuring years of trouble-free operation. Superior Control and Modulation: Delivers exceptionally precise flow regulation, even at very low flow rates, making it perfect for sensitive applications. The wide operating pressure range adds to its versatility. Impact-Free, Smooth Operation: The flexible diaphragm ensures a soft, controlled opening and closing, completely eliminating damaging water hammer and protecting your entire pipeline system. Outstanding Hydraulic Efficiency: The advanced valve body and diaphragm design provides a smooth flow path with minimal pressure loss, reducing pump workload and lowering energy costs. Highly Versatile and Adaptable: Can be fitted with a wide range of pilot valves to perform various control functions, and can be installed in either horizontal or vertical positions for maximum flexibility.