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ZSHW Pneumatic regulating butterfly valve

Nominal diameterDN25-DN1000

Nominal pressure1.6

Structuretype A, LT lug

Connection modeClamp and flange

Temperature range NBR:-30~80℃ EPDM:-30~120℃ PTFE:-30~130

Product overview

The pneumatic butterfly valve is composed of pneumatic actuator and neutral butterfly valve. The pneumatic butterfly valve is equipped with travel limit switch, solenoid valve, triplet and 0.4-0.7mpa air source to realize switching operation, and sends two pairs of passive contact signals to indicate the switching of the valve. Matched with the electric positioner, intelligent control can be realized by inputting 4-20madc signal and 0.4-0.7mpa air source to adjust parameters such as pressure, flow, temperature and liquid level. It is powered by compressed air, and the valve stem drives the valve core to rotate 90 ℃ in the valve body, which can realize the action of full opening and full closing. The product is divided into metal seal and soft seal according to its sealing performance. The utility model has the advantages of compact structure, small volume, reliable operation, good sealing, easy maintenance, convenient installation and strong adaptability. It can be widely used in petroleum, chemical industry, light industry, pharmacy, papermaking, automobile and other industrial automatic control systems for remote centralized control or local control.

Product features

Valve body material: butterfly valve, 304, 316, UPVC

Valve plate material: 304, 316, 316L, nylon plate, aluminum bronze, nodular iron, nickel plating

Sealing valve seat: NBR, EPDM, PTFE

Pressure rating: 1.6Mpa

Nominal diameter: dn25-dn1000

Structural form: type A, lt lug type

Connection mode: clamp and flange

Voltage range: AC220V / 110V / 380V / 24V 50 / 60Hz DC24V / 12V + 10% to - 10%

Temperature range: NBR: - 30 ~ 80 ℃, EPDM: - 30 ~ 120 ℃, PTFE: - 30 ~ 130 ℃

Pneumatic actuator: double acting, single acting

Pneumatic accessories: reversing solenoid valve, limit switch, air filter pressure reducing valve, electrical positioner and handwheel mechanism