The ZJHPFW pneumatic bellows lined fluorine single seat regulating valve is a top guide structure with a compact valve body structure, S-shaped fluid channel, low pressure drop loss, high flow rate, and wide adjustable range. The upper valve cover adopts a corrugated pipe sealing structure, which can completely eliminate the possibility of process medium leaking out from the clearance of the valve stem movement, which is one of the significant features of the corrugated pipe sealing valve. Due to its deformability and outstanding anti-aging property, the bellows element completely overcomes the weaknesses of packing aging and temperature difference sensitivity that usually exist in packing seal valves. Secondly, adopting a dual sealing structure of corrugated tube and packing ensures better safety and reliability. Therefore, it has been widely used in automatic control systems for rare and special media such as highly toxic, highly corrosive, and radioactive substances. The valve core has a large guiding area and good vibration resistance. It is equipped with ZHA/B multi spring pneumatic actuators, which have a compact structure and high output force.

ZJHPFW Pneumatic Bellows lined Fluorine Single Seat Regulating Valve actuator
Type: ZHA (B) Multi spring thin film actuator diaphragm material: Ethylene propylene rubber with nylon cloth, Ding Qing rubber with nylon cloth. Spring range: 20-100, 80-240kPa. Gas supply pressure: 140-400kPa. Gas source interface: Rc1/4 ". Environmental temperature: -30~+70 ℃. Valve action type: using positive or negative action actuator to achieve valve air closing or air opening. Accessories: locator, air filter pressure reducer, holding valve, travel switch, valve position transmitter, solenoid valve, handwheel mechanism, etc
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Performance of ZJHPFW Pneumatic Bellows lined Fluorine Single Seat Regulating Valve
Leakage: less than 0.01% of the rated capacity of the valve Return: with locator: less than 1% of the full stroke Basic error: with locator: less than ± 1% of the full stroke Note: using standard V-shaped PTFE adjustable range 30:1 Kv value and stroke