GIQ pneumatic high vacuum Butterfly Valve is to change the direction of gas path by electromagnetic reversing valve, and control the cylinder driven butterfly valve for opening and closing activities. Used to connect or cut off the air flow in a vacuum line. Applicable medium is pure air and non corrosive gas. Optional feedback signal assembly and electrical valve positioner.
Important technical performance
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Applicability | 105~1.3×10-4Pa |
Valve Leak Rate | ≤1.3×10-4Pa.L/S. |
Applicable Temperature | -25~+80ºC(Nitrile butadiene rubber) -30~+150ºC(fluoro rubber) |
Mains Voltage | 0.4~0.6MPa |
Mounting Direction | optional |
Important parts name
valve body,valve cover,valve rod:Â carbon steel or stainless steel
sealing parts:Â Nitrile butadiene rubber,fluoro rubber
Shape and connection size(mm)
Model | DN | D | Do | D1 | B | H | B1 | L | n-φc |
GID-40 | 40 | 85 | 70 | 44 | 22 | 162 | 90 | 104 | 4-φ7 |
GID-50 | 50 | 110 | 90 | 55 | 22 | 175 | 90 | 104 | 4-φ7 |
GID-65 | 65 | 125 | 105 | 70 | 26 | 198 | 102 | 140 | 4-φ9 |
GID-80 | 80 | 145 | 125 | 85 | 30 | 208 | 102 | 140 | 4-φ9 |
GID-100 | 100 | 170 | 145 | 105 | 30 | 220 | 102 | 140 | 4-φ12 |
GID-150 | 150 | 220 | 195 | 156 | 35 | 272 | 115 | 164 | 8-φ12 |
GID-200 | 200 | 275 | 250 | 208 | 40 | 330 | 205 | 190 | 8-φ12 |
GID-250 | 250 | 330 | 300 | 258 | 45 | 335 | 205 | 190 | 8-φ14 |
GID-300 | 300 | 380 | 350 | 308 | 55 | 426 | 152 | 247 | 8-φ14 |
GID-400 | 400 | 500 | 465 | 410 | 60 | 520 | 180 | 308 | 8-φ18 |
GID-500 | 500 | 600 | 565 | 510 | 80 | 643 | 220 | 378 | 12-φ18 |
GID-600 | 600 | 710 | 670 | 610 | 100 | 760 | 270 | 524 | 12-φ21 |
GID-800 | 800 | 920 | 815 | 815 | 130 | 962 | 320 | 648 | 20-φ21 |
GID-1200 | 1200 | 1440 | 1280 | 1280 | 150 | 1360 | 385 | 1480 | 36-φ19  |
The valve is suitable for non corrosive saturated steam and low vacuum pipeline, as closed circuit equipment. The valve seal butterfly valve, 0.25MPa pressure sealing butterfly valve at both ends of the shaft seal, ensure that the shaft seal does not leak. The structure of the NKD941X-25C type double seat seat and between the situation, both at the shaft end is screwed with rubber pressure water (pressure 0.25MPa) combined sealing situation. If necessary, electric heating assembly can be installed on the valve body.
Parts and materials
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parts name | valve body,valve plate | valve shaft,sealing seat | butterfly sealing ring |
material | Q235-A,FÂ sheet steel | 2Cr13,1Cr18Ni9Ti | Three yuan ethylene rubber Fluoro rubber |
Important performance parameters
model | NKD941X-25C | NKD941X-25C | |
PN(MPa) | 0.25 | 0.25 | |
Test pressure(MPa) | intensity test | 0.4 | 0.4 |
sealing test | 0.275 | 0.275 | |
work pressure(MPa) | 0.25 | 0.25 | |
suitable medium | Corrosion free saturated water vapor | ||
suitable temperature | ≤120 | ≤200 | |
Vacuum superficial leakage rate | ≤6.67×10-2PaM3S-1 | ||
Flange connection size standard | GB25555~2556-81 | ||
pressure test standard | GB/T13927-92 |
Size parameters
DN | D | D1 | D2 | L | n-d | b | f | A | B | H |
1000 | 1170 | 1120 | 1080 | 305 | 28-30 | 42 | 5 | 590 | 980 | 2230 |
1200 | 1375 | 1320 | 1280 | 381 | 32-30 | 44 | 5 | 590 | 980 | 2476 |
1400 | 1575 | 1520 | 1480 | 381 | 36-30 | 46 | 5 | 630 | 1117 | 2793 |
1600 | 1790 | 1730 | 1690 | 457 | 40-30 | 48 | 5 | 630 | 1117 | 2850 |
1800 | 1990 | 1930 | 1890 | 457 | 44-30 | 50 | 5 | 850 | 1480 | 3187 |
2000 | 2190 | 2130 | 2090 | 540 | 48-30 | 52 | 5 | 850 | 1480 | 3310 |
2200 | 2405 | 2340 | 2295 | 590 | 52-33 | 56 | 6 | 850 | 1554 | 3915 |
2400 | 2605 | 2540 | 2495 | 650 | 56-33 | 60 | 6 | 850 | 1554 | 4187 |
2600 | 2805 | 2740 | 2695 | 700 | 60-33 | 64 | 6 | 1533 | 1435 | 4409 |
2800 | 3030 | 2960 | 2910 | 760 | 64-36 | 66 | 6 | 1585 | 1837 | 4760 |
3000 | 3230 | 3160 | 3110 | 810 | 68-36 | 70 | 6 | 1585 | 1837 | 5008 |

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
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 OverviewÂ
GIQ pneumatic high vacuum butterfly valve is to change the direction of gas path by electromagnetic reversing valve, and control the cylinder driven butterfly valve for opening and closing activities. Used to connect or cut off the air flow in a vacuum line. Applicable medium is pure air and non corrosive gas. Optional feedback signal assembly and electrical valve positioner.
Important technical performance
Â
Applicability | 105~1.3×10-4Pa |
Valve Leak Rate | ≤1.3×10-4Pa.L/S. |
Applicable Temperature | -25~+80ºC(Nitrile butadiene rubber) -30~+150ºC(fluoro rubber) |
Mains Voltage | 0.4~0.6MPa |
Mounting Direction | optional |
Important parts name
valve body,valve cover,valve rod:Â carbon steel or stainless steel
sealing parts:Â Nitrile butadiene rubber,fluoro rubber
Shape and connection size(mm)
Model | DN | D | Do | D1 | B | H | B1 | L | n-φc |
GID-40 | 40 | 85 | 70 | 44 | 22 | 162 | 90 | 104 | 4-φ7 |
GID-50 | 50 | 110 | 90 | 55 | 22 | 175 | 90 | 104 | 4-φ7 |
GID-65 | 65 | 125 | 105 | 70 | 26 | 198 | 102 | 140 | 4-φ9 |
GID-80 | 80 | 145 | 125 | 85 | 30 | 208 | 102 | 140 | 4-φ9 |
GID-100 | 100 | 170 | 145 | 105 | 30 | 220 | 102 | 140 | 4-φ12 |
GID-150 | 150 | 220 | 195 | 156 | 35 | 272 | 115 | 164 | 8-φ12 |
GID-200 | 200 | 275 | 250 | 208 | 40 | 330 | 205 | 190 | 8-φ12 |
GID-250 | 250 | 330 | 300 | 258 | 45 | 335 | 205 | 190 | 8-φ14 |
GID-300 | 300 | 380 | 350 | 308 | 55 | 426 | 152 | 247 | 8-φ14 |
GID-400 | 400 | 500 | 465 | 410 | 60 | 520 | 180 | 308 | 8-φ18 |
GID-500 | 500 | 600 | 565 | 510 | 80 | 643 | 220 | 378 | 12-φ18 |
GID-600 | 600 | 710 | 670 | 610 | 100 | 760 | 270 | 524 | 12-φ21 |
GID-800 | 800 | 920 | 815 | 815 | 130 | 962 | 320 | 648 | 20-φ21 |
GID-1200 | 1200 | 1440 | 1280 | 1280 | 150 | 1360 | 385 | 1480 | 36-φ19  |
The valve is suitable for non corrosive saturated steam and low vacuum pipeline, as closed circuit equipment. The valve seal butterfly valve, 0.25MPa pressure sealing butterfly valve at both ends of the shaft seal, ensure that the shaft seal does not leak. The structure of the NKD941X-25C type double seat seat and between the situation, both at the shaft end is screwed with rubber pressure water (pressure 0.25MPa) combined sealing situation. If necessary, electric heating assembly can be installed on the valve body.
Parts and materials
Â
parts name | valve body,valve plate | valve shaft,sealing seat | butterfly sealing ring |
material | Q235-A,FÂ sheet steel | 2Cr13,1Cr18Ni9Ti | Three yuan ethylene rubber Fluoro rubber |
Important performance parameters
model | NKD941X-25C | NKD941X-25C | |
PN(MPa) | 0.25 | 0.25 | |
Test pressure(MPa) | intensity test | 0.4 | 0.4 |
sealing test | 0.275 | 0.275 | |
work pressure(MPa) | 0.25 | 0.25 | |
suitable medium | Corrosion free saturated water vapor | ||
suitable temperature | ≤120 | ≤200 | |
Vacuum superficial leakage rate | ≤6.67×10-2PaM3S-1 | ||
flange connection size standard | GB25555~2556-81 | ||
pressure test standard | GB/T13927-92 |
Size parameters
DN | D | D1 | D2 | L | n-d | b | f | A | B | H |
1000 | 1170 | 1120 | 1080 | 305 | 28-30 | 42 | 5 | 590 | 980 | 2230 |
1200 | 1375 | 1320 | 1280 | 381 | 32-30 | 44 | 5 | 590 | 980 | 2476 |
1400 | 1575 | 1520 | 1480 | 381 | 36-30 | 46 | 5 | 630 | 1117 | 2793 |
1600 | 1790 | 1730 | 1690 | 457 | 40-30 | 48 | 5 | 630 | 1117 | 2850 |
1800 | 1990 | 1930 | 1890 | 457 | 44-30 | 50 | 5 | 850 | 1480 | 3187 |
2000 | 2190 | 2130 | 2090 | 540 | 48-30 | 52 | 5 | 850 | 1480 | 3310 |
2200 | 2405 | 2340 | 2295 | 590 | 52-33 | 56 | 6 | 850 | 1554 | 3915 |
2400 | 2605 | 2540 | 2495 | 650 | 56-33 | 60 | 6 | 850 | 1554 | 4187 |
2600 | 2805 | 2740 | 2695 | 700 | 60-33 | 64 | 6 | 1533 | 1435 | 4409 |
2800 | 3030 | 2960 | 2910 | 760 | 64-36 | 66 | 6 | 1585 | 1837 | 4760 |
3000 | 3230 | 3160 | 3110 | 810 | 68-36 | 70 | 6 | 1585 | 1837 | 5008 |




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Universal Flange Adaptor:connect range from DN40 to DN400;PN10 Universal Flange Adaptor; PN16 Universal Flange Adaptor;
Dedicated to the ductile iron Pipe Flange Adaptor: connect range from DN40 to DN600; PN10 Dedicated to the ductile iron Pipe Flange Adaptor; PN16 Dedicated to the ductile iron Pipe Flange Adaptor;PN25 Dedicated to the ductile iron Pipe Flange Adaptor;PN40 Dedicated to the ductile iron Pipe Flange Adaptor;
The PE Pipe Flange Adaptor: connect range from DN50 to DN300;
Flange Adaptor
Flange Coupling Adapter,Pvc Flange Adapter,Ductile Iron Flange Adapter,Universal Flange Adaptor
SUZHOU RSF VALVE CO.,LTD , https://www.rsf-valve.com