The pneumatic actuated PPH butterfly valve is composed of a piston pneumatic actuator and a PPH butterfly valve. The butterfly valve features a circular arc design and a rubber-sealing fit, ensuring no leakage and smooth operation for major pipeline systems. The pneumatic actuators come in two types: double-acting (where the valve remains in place during air source failure) and single-acting (where the valve resets during air source failure). These products fully comply with ISO 5211, DIN 3337, CD/VDE3845, NAMUR, and other international standards. Depending on the customer’s requirements, materials resistant to corrosion, high temperatures, and low temperatures can be selected. Sizes range from 1-1/2" to 12", and in addition to PPH, we offer UPVC, CPVC, and PVDF.