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| Brand Name: | SONGO |
| MOQ: | 2 pieces |
| Price: | CN¥576.51/pieces 1-29 pieces |
| Payment Terms: | L/C,D/A,T/T,D/P,Western Union |
| Supply Ability: | 5000-10,000Pieces/Month |
Descriptions Of Pneumatic Vacuum butterfly valves :
The GIQ pneumatic vacuum butterfly valve refers to a valve operating below standard atmospheric pressure to create a specified vacuum. It serves as a critical component in vacuum systems for regulating gas flow, as well as isolating and connecting pipelines, primarily employed in controlling air and non-corrosive gases. Featuring a clamping mechanism, the valve plate compresses the sealing ring to achieve zero leakage. Beyond vacuum conditions, this valve is also suitable for low-pressure applications. Powered by compressed air, the pneumatic vacuum butterfly valve actuates the disc's rotational movement to open or close, thereby controlling pipeline gas flow. It is available in double-acting and single-acting configurations, with the single-acting variant incorporating a spring return mechanism for automatic reset during system failures.
Features Of Pneumatic Vacuum butterfly valves:
01)The bearing adopts a self-lubricating design, featuring minimal frictional resistance.
02)The sealing ring of the pneumatic vacuum butterfly plate can be replaced without disassembling the valve from the pipeline.
03) This valve ensures reliable bidirectional sealing, achieving zero leakage in both flow directions.
04)The shaft seal incorporates a specialized self-compensating structure, effectively isolating the external atmosphere from the pipeline to maintain optimal vacuum integrity.
Design Features Of SONGO Pneumatic Actuator:
Structure Dimension Drawing Of Pneumatric Vacuum butterfly Valve:
| Model No. | DN | ΦD | ΦB | H | A | L1 | L2 | n-Φc | Flange Standard | Pneumatic Actuator No. |
| SONGOGIQ-25 | 25 | 70 | 55 | 151.5 | 22 | 150 | 72.5 | 4-Φ7 | JB919 | AT-52 |
| SONGOGIQ-32 | 32 | 78 | 64 | 155.5 | 22 | 150 | 72.5 | 4-Φ7 | JB919 | AT-52 |
| SONGOGIQ-40 | 40 | 85 | 70 | 159 | 22 | 150 | 72.5 | 4-Φ7 | JB919 | AT-52 |
| SONGOGIQ-50 | 50 | 110 | 90 | 181 | 22 | 150 | 72.5 | 4-Φ9 | JB919 | AT-52 |
| SONGOGIQ-65 | 65 | 125 | 105 | 207.3 | 26 | 171 | 83 | 4-Φ9 | JB919 | AT-63 |
| SONGOGIQ-80 | 80 | 145 | 125 | 230 | 30 | 186 | 95.5 | 4-Φ9 | JB919 | AT-75 |
| SONGOGIQ-100 | 100 | 170 | 145 | 242 | 30 | 206 | 103.5 | 4-Φ12 | JB919 | AT-83 |
| SONGOGIQ-125 | 125 | 195 | 170 | 288 | 35 | 265 | 108 | 4-Φ12 | JB919 | AT-92 |
| SONGOGIQ-150 | 150 | 220 | 195 | 299 | 35 | 272 | 121.5 | 8-Φ12 | JB919 | AT-105 |
| SONGOGIQ-200 | 200 | 275 | 250 | 348 | 40 | 304 | 142 | 8-Φ12 | JB919 | AT-125 |
| SONGOGIQ-250 | 250 | 330 | 300 | 419 | 45 | 395 | 151 | 8-Φ14 | JB919 | AT-140 |
| SONGOGIQ-300 | 300 | 380 | 350 | 475 | 55 | 462 | 174 | 8-Φ14 | JB919 | AT-160 |
| SONGOGIQ-400 | 400 | 500 | 465 | 557 | 60 | 556 | 226 | 8-Φ18 | JB919 | AT-210 |
| SONGOGIQ-500 | 500 | 600 | 565 | 650 | 80 | 630 | 260 | 12-Φ18 | JB919 | AT-240 |
| SONGOGIQ-600 | 600 | 710 | 670 | 728 | 100 | 750 | 294 | 12-Φ21 | JB919 | AT-270 |
| SONGOGIQ-800 | 800 | 920 | 880 | 882 | 130 | 860 | 380 | 20-Φ21 | JB919 | AT-350 |
Butterfly Valve Operating Type Selection:
Butterfly Valve Connection End Selection:
Butterfly Valve Disc Material Selection:
Butterfly Valve Seat Material Selection:
Seat Material Of Butterfly Valve:
| Material Name |
Description | Operating Temperature |
Service Application |
| PTFE | Virgin PTFE is the most widely used sealing material with excellent characteristics suitable for most services. It has excellent chemical resistance throughout valve industries and low coefficient of frication | -20°F – 400°F -29°C – 205°C |
General chemicals, low pressure services |
| RPTFE | RPTFE (Reinforced PTFE) is typically produced by adding 15% fiber glass to virgin PTFE. It has better pressure-temperature properties than virgin PTFE, better resistance to wear and deformation under load. Not to be used in hydrofluroic acid | -20°F – 400°F -29°C – 205°C |
For low and medium pressure services |
| PCTFE | PCTFE is a homopolymer of chlorotrifluoroethylene, featuring high compressive strength and low deformation under load | -320°F – 248°F -196°C – 120°C |
For low temperature low pressure services |
| Nylon | Nylon is a common seat material for Class 600 valves. It is highly resistance to many chemicals and abrasions, and can be used in air, oil and other gas media. It is not suitable for strong oxidization agents | -20°F – 176°F -29°C – 80°C |
For high pressure, low temperature services |
| PPL | PPL (Polyparaphenylene) is an excellent seat material with low coefficient of friction, highly resistant to pressure and temperature | -50°F – 482°F -46°C – 250°C |
For high temperature low pressure services |
| TFM | TFM (modified PTFE) is a chemically modified PTFE that offers enhanced properties while retaining all the proven advantages of a conventional PTFE | -112°F – 248°F -80°C – 120°C |
For services requiring high purity |
| Metal | Metal (typically stellite) seats are used in severe conditions where flashing, hydraulic shock, abrasive media or trapped metal may exist in the line | -320°F – 1202°F -196°C – 650°C |
For severe services |
O-Ring Material Of Butterfly Valve:
| Material Name |
Description | Operating Temperature |
Operating Pressure |
| NBR | Buna-N (NBR) is an all purpose polymer with good resistance to water, solvents, oil and hydraulic fluids | -50°F – 176°F -46°C – 80°C |
Class 150 – 600 PN 20 – 100 |
| HNBR | HNBR (Hydrogenated NBR) has similar media stability to NBR but with significantly better heat and oxidization stability | -67°F – 337°F -55°C – 170°C |
Class 150 – 600 PN 20 – 100 |
| Viton | Viton (fluorocarbon) is a fluorocarbon elastomer that is compatible with a broad range of chemicals. It performs well in mineral acids, salt solutions, chlorinated hydrocarbons and petroleum oils | -49°F – 320°F -22°C – 204°C |
Class 150 – 600 PN 20 – 100 |
| EPDM | EPDM has good abrasion and tear resistance with excellent chemical resistance to a variety of acids and alkalines. It is susceptible to attack by oil, strong acids and strong alkalines and should not be used in compressed air lines | -50°F – 302°F -46°C – 150°C |
Class 150 – 600 PN 20 – 100 |
Matching Air Accessories Selection For Pneumatic Butterfly Valve:
Pneumatic Actuator Accessories Options :
| Pneumatic Actuator Accessories Options | ||
| Pneumatic Actuator Pisition | Applicable Connection Standard |
Pneumatic Actuator Accessories |
| Actuator Upper | VDI/VDE 3845 | ● Limit Switch Box ● Proximity Switch ● P/P Pneumatic Positioner ( Control Input Signal Is 0.20-1.03 Bar or 3-15 PSI ) ● E/P Electro Pneumatic Positioner ( Control Input Signal Is 4-20mA ) |
| Actuator Back | VDI/VDE 3845 | Non Explosion-proof Type ExmbIICT4 / EX d IIB T6 / EX d IIC T6 / EX ia IIC T6 Explosion-proof Type ● 3/2 Way Namur Solenoid Valve ( For Spring Return Actuator ) ● 5/2 Way Namur Solenoid Valve ( For Double Acting Actuator ) Air Filter Regulator |
| Actuator Bottom | ISO5211/DIN3337 | ● Declutchable Gear Box ● Ball Valve , Butterfly Valve , Plug Valve |
Single Acting & Double Acting Difference Of Pneumatic Actuator:
| Principle Of Single Acting Pneumatic Actuator (Spring Return) | |
| Counter - Clockwise | Clockwise |
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Air to port A forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.
Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A. |
Air to port B forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.
Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A. |
| Principle Of Double Acting Pneumatic Actuator | |
| Counter - Clockwise | Clockwise |
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Air to Port A forces the pistons outwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port B.
Air to Port B forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port A. |
Air to Port A forces the pistons outwards, causing the pinion to turn clockwise while the air is being exhausted from Port B.
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Frequently Asked Questions:
