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Pneumatic hard seal butterfly valve

Pneumatic hard seal butterfly valve

Model:D643H

Size:DN50-600

Pressure:10K/16K

Temperature:≤425℃

Body material:WCB,stainless steel

Applicable medium:Water,oil etc.

Introduction

Pneumatic flanged butterfly valve is the preferred choice of the conventional butterfly valve pipeline, with simple structure, small flow resistance coefficient, easy to be retained debris, easy installation, low drive torque advantages.

Features

1. Compact and light, easy to disassemble and repair, and can be installed in any position.

2, simple and compact structure, small operation torque, 90 ° rotating open quickly.

3. The flow characteristic is straight line, with good regulation performance.

4. The connection between butterfly plate and valve stem adopts a pin free structure, which overcomes the possible internal leakage point.

5. The disc outer circle adopts the spherical shape, which improves the sealing performance and extends the service life of the valve

6. The sealing parts can be replaced, and the sealing is reliable to achieve two-way sealing.

7. The butterfly board can be sprayed according to the user's requirements

8. Flange connection and clamp connection can be designed.

Technical parameters

 
 DN(mm) 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000
L 90 90 100 115 130 140 150 250 270 290 310 330 350 390 430 470 500 550
L1 43 46 49 56 64 70 71 76 83 92 102 113 127 154 165 190 203 216
H flange 63 70 83 105 115 137 164 206 230 248 289 320 343 413 478 525 585 640
WAFER TYPE 63 70 83 105 115 137 164 206 230 248 289 320 343 413 478 525 585 640
n-φd 4-18 4-18 8-18 8-18 8-18 8-22 12-22 12-26 12-26 16-26 16-30 20-30 20-33 20-36 24-36 24-39 28-39 28-42
H1 depends on the actuator
A Depends on the torque required by the valve
D 165 185 200 220 250 285 340 405 460 520 580 640 715 840 910 1025 1125 1255
D1 125 145 160 180 210 240 295 355 410 470 525 585 650 770 840 950 1050 1170

Technical standard

JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97

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