Pneumatic butterfly valve

PVC pneumatic butterfly valve

Click the image for a larger viewPVC pneumatic butterfly valve
  • Body materialPlastic UPVC, CPVC,PP,PPH,PVDF
    Disc materialPlastic UPVC, CPVC,PP,PPH,PVDF
    Seal mateiralEPFM
    Nominal pressurePN16KG,PN10KG
    Structure typeWafer A type
    Control typeSingle acting, double acting
    Air supply3-8bar
    Pneumatic accessorySolenoid valve, limit switch box, positioner, handle wheel, etc
Product parametersSize and dataworking principle


PVC pneumatic butterfly valve

 

UPVC plastic butterfly valve light weightstrong corrosion resistance, is used in many fields such as general pure water and raw drinking water pipeline systemdrainage and sewage pipeline systemsalt water and the sea water pipeline system, acid-base and chemical solution system etc. Quality recognized by the vast number of users. The UPVC butterfly valve has: compact structure and beautiful appearanceontology light weighteasy to installstrong corrosion resistancewide applicationmaterial health and non-toxicwear resistanceeasy to dismountingsimple and easy to maintenance.

 




Technical parameters

Body

Nominal size: DN50 –DN600mm

Body material: UPVC, CPVC, PPH, PP, PVDF

Connection type: Wafer type

Pressure class: PN1.0-1.6MPa

Structure type: Midline type

 

Valve components

 

Seat sealing:   EPDM: -30~80

Disc material: UPVC, CPVC, PP, PPH, PVDF

Stem material: SS410

Applicable medium: Water, liquids, gas, oil, powder, steam, acid-base medium, etc.

 

Design and manufacturing standards

 

Design and manufacture: GB/T12238

Connection standard: JB/T 79-94, GB9113.1-26

Face to face dimension: GB/T 12221

Pressure testing: GB/T13927





Actuators


                     Pneumatic actuator

Control type

Function

Double acting

Failure to maintain

Single acting normally closed

Failure to close

Single acting normally open

Failure to open

Optional accessory

Solenoid valve, limit switch box, air filter relief pressure valve, positioner, manual device.

 


PVC pneumatic butterfly valve

 

Outline size drawing





Data information


Size

50

65

80

100

125

150

200

250

300

JIS

D1

120

140

150

175

210

240

290

355

400

n-Φe

4-19

4-19

8-19

8-19

8-23

8-23

12-23

12-25

16-25

ANSI

D1

121

140

152

191

216

241

298

362

432

n-Φe

4-19

4-19

4-19

8-19

8-22

8-22

12-22

12-25

12-25

DIN

D1

125

145

160

180

210

240

295

350

440

n-Φe

4-18

4-18

4-18

8-18

8-18

8-18

8-23

8-23

12-23

D

165

185

200

229

257

285

343

411

490

D2

56.6

69.5

79.5

102.5

130

152

203

255

309.5

W1

43

46

46

56

69

75

85

109

133

W2

29

31

31

40

50

54

69

88

103.5

H1

235

245

260

280

322

374

428

482

574

H2

103

113

115

135.5

164

169

201

242

302

L

214

214

252

252

270

354

418

450

518

A

163

163

195

217

258

299

349

397

473

B

96

96

115

137

147

165

182

199

221

C

76

76

91

111

122

136

153

173

192

 



Related pictures



Pneumatic actuator working principle:

Double acting (POADA):


(Counterclockwise)

Compressed air to Port 2 forces the pistons outwards, causing the output shaft to turn

counterclockwise, while the air is being exhausted from Port 4.

(Clockwise) Air to Port 4 forces the pistons inwards, causing the pinion to turn clockwise

while the air is being exhausted from Port 2.


Single acting (POASR):

(Counterclockwise)


Compressed air to Port 2 forces the pistons outwards, causing the springs to compress,

the pinion counterclockwise while air is being exhausted from Port 4.

(Clockwise)

Loss of air pressure, the stored energy in the springs forces the pistons inwards,

the pinion turns clockwise, while air is being exhausted from Port 4.


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