Pneumatic diaphragm regulating valve (referred to as pneumatic diaphragm valve) seal the "mountain" shaped protruding surface between the diaphragm valve body, isolated from the outside world (no packing function), the valve body flow path is simple, smooth, can cover the anti-corrosion layer, especially suitable for the requirements of corrosion resistant, highly toxic occasions. The nominal pressure grade of this series of products is 0.6, 1.0MPa, the valve body diameter ranges from 20 to 200 mm, the applicable temperature range is within 150℃, and the leakage amount is zero.

Multi-spring actuator, with 30% reduction in height and weight. There are a variety of materials coated on the surface of the valve to avoid direct contact with the medium and withstand the corrosion of strong valve corrosive medium. When the valve is closed, the internal and external leakage is zero, especially suitable for highly toxic media or valve joints that do not allow contamination. Simple flow path, small resistance, rated flow coefficient than the same diameter single seat, sleeve regulating valve is large.

Design and manufacture: ASME B16.34, GB / T 12224

Structure length: ASME B16.10, GB / T 12221

Connected flange: ASME B16.5, GB / T 9112~9124, HG / T 20592, HG / T 20615, JB / T 79

Inspection and test: API 598, GB / T 26480