Pneumatic bellows control valve

ZJHPW bellows sealed pneumatic single-seat control valve for industrial process automation control system. It can automatically turn on or off when receiving the electric control signal, so as to realize the on-off or flow control of the fluid in the pipeline. This series of solenoid valve can be widely used in the production and R & D departments of textile, printing, chemical, plastics, rubber, pharmaceutical, food, building materials, machinery, electrical appliances, surface treatment and other facilities for people's daily life such as bathrooms, canteens and air conditioners. ZJHPW bellows sealed pneumatic single-seat control valve is mainly used for corrosive liquids, clean liquid and edible liquid medium control.
 

First, the bellows seal pneumatic single-seat control valve technical parameters

 Second, ZJHPW bellows pneumatic single-seat control valve seal Features Description

ZJHPW bellows sealed pneumatic single-seat control valve, is a top-oriented structure of the control valve, compact body structure, the flow was S-streamline pipeline, pressure loss loss, flow, adjustable wide range. 
 The bonnet seal structure with corrugated pipe can completely eliminate the possibility of leakage of process media from the stem movement gap, which is one of the notable features of the bellows sealed valve. Due to their inherent deformability and outstanding aging resistance, the bellows valve completely overcomes the filler weathering and temperature-sensitivity issues commonly associated with packing valves. Second, the use of double bellows - packing seal structure, better safety and reliability. Therefore, it is widely used in the automatic control system of rare special media such as highly toxic, corrosive, radioactive and so on. Large spool guide area, good vibration resistance, with multi-spring film actuator, its compact structure, the output power.
 

Three, ZJHPW bellows seal Pneumatic single-seat control valve Type  
 Nominal diameter: 10,15,25,32,40,50 mm 
 Nominal pressure: PN22, 32MPa 
 Flange standard: H12-67 
 Material: forged steel, cast stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti), 316L, etc. 
 Upper bonnet: Normal type: -40 ~ + 230 ℃, Radiator: + 230 ~ + 450 ℃ 
 Gland type: Bolt press type 
 packing: V type PTFE packing, asbestos braided packing, Graphite packing
 

Fourth, ZJHPW bellows pneumatic single-seat control valve seal assembly

Single-seat spool-type spool 
 flow characteristics: equal percentage characteristics and linear characteristics of 
 materials: stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 316L), 6YC1, stainless steel surfacing Division Tai Lai alloy
 

Five, ZJHPW bellows seal pneumatic single seat control valve actuator
 spring range: 20 ~ 100 (standard), 40-200,80-240,20-60,60-100KPa 
 Diaphragm materials: rubber clip nylon cloth, ethylene propylene rubber Clip Nylon cloth 
 Supply pressure: 140 ~ 400KPa 
 Air supply interface: RC1 / 4 " 
 Ambient temperature: -30 ~ +70 ℃
 

Sixth, bellows seal Pneumatic single-seat control valve installation size