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Pneumatic bellows control valve

Products > Control valve > Pneumatic bellows control valve

Pneumatic bellows control valve

Model: ZJHPW
Nominal diameter: DN10 ~ 50mm
Nominal pressure: PN22,32MPa
Ambient temperature: -30 ~ + 70 ℃
Main material: forged steel, cast stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti), 316L other
Suitable medium: corrosive liquid, clean liquid, liquid food
Drive: aerodynamic
Design criteria: GB / T17213
Flange standard: GB / T9113, JB / T79 , HG20594 and other standard
Inspection standards: GB / T4213
Form connect: flange (FF RF RTJ), welding (SW BW), thread (for 1 "or less)
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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

Working medium

Corrosive liquid, clean liquid, food liquid 
       ZBSF-1: ZBSF-1Y for gas: 
       ZBSF-2 for liquid : ZBSF-2Y for gas: liquid

Medium temperature ℃

ZBSF-1 (1Y) ≤60 ℃ ZBSF-2 (2Y) ≤200 ℃

Working pressure difference Mpa

0 ~ 1.6

voltage

AC220V other specifications for special order

Service life

By JB / T7352-94 regulations

Rated flow coefficient KV

Leakage ml / min

According to JB / T7352-94 · F regulations

Power consumption

40

50


 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

DN

L

H

D

D1

D2

b

f

nd

10

115

153

90

60

41

14

3

4-φ14

15

115

153

95

65

46

14

3

4-φ14

20

115

153

105

75

56

16

3

4-φ14

25

125

153

115

85

65

16

3

4-φ14

32

150

176

140

100

76

18

3

4-φ18

40

165

176

150

110

84

18

3

4-φ18

50

190

192

165

125

99

20

3

4-φ18


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