Description
Acquire an air actuated butterfly valve right now to achieve maximum efficiency and convenience. The pneumatic butterfly valve delivers exact flow rate management through continuous fluid flow with low pressure drop and superior operational results. The lightweight compact design allows simple installation between flanges while needing minimal maintenance. The air operated butterfly valve provides precise flow rate control through its two-piece design and rotatable disc.

Technical parameters
| Body | ASTM A536 65-45-12, WCB, CF8M |
| Disc | ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462 |
| Seat | EPDM,NBR,FRM.PTFE |
| Stem | SS420,SS431 |
| Body style | wafer |
| Nominal diameter | 2″ – 80″ (DN50mm – DN2000mm) |
| Top flange | ISO5211 |
| Operating pressure: | 16bar for DN50-DN300, 10bar for DN350-DN2000 |
| Temperature range: | -20 °C to + 140 °C (depending on pressure, medium and material) |
| Flange accommodation | EN 1092 PN 6/PN10/PN16 ASME Class 150 AS 4087 PN10/ PN16 JIS 5K/10K |
Pneumatic actuator
| action | |
| 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, E/P positioned manual device. |


| SIZE | A | B | C | D | E | F | n | d | G | J | L | WT(kg) | |
| DN | INCH | ||||||||||||
| 50 | 2″ | 142 | 80 | 13.5 | 165 | 9 | 50 | 4 | 8 | 70 | 15 | 108 | 9 |
| 65 | 2 1/2″ | 155 | 89 | 13.5 | 185 | 9 | 50 | 4 | 8 | 70 | 15 | 112 | 10 |
| 80 | 3″ | 161 | 95 | 13.5 | 200 | 9 | 50 | 4 | 8 | 70 | 17 | 114 | 12 |
| 100 | 4″ | 180 | 114 | 13.5 | 229 | 11 | 70 | 4 | 10 | 90 | 17 | 127 | 16 |
| 125 | 5″ | 193 | 127 | 17.5 | 254 | 14 | 70 | 4 | 10 | 90 | 19 | 140 | 24 |
| 150 | 6″ | 205 | 139 | 17.5 | 285 | 14 | 70 | 4 | 10 | 90 | 19 | 140 | 29 |
| 200 | 8″ | 250 | 175 | 24.5 | 343 | 17 | 102 | 4 | 12 | 125 | 21 | 152 | 39 |
| 250 | 10″ | 282 | 203 | 25 | 406 | 22 | 102 | 4 | 12 | 125 | 23 | 165 | 60 |
| 300 | 12″ | 326 | 242 | 25 | 483 | 22 | 102 | 4 | 12 | 125 | 24 | 178 | 82 |
| 350 | 14″ | 358 | 267 | 30 | 533 | 27 | 125 | 4 | 14 | 150 | 24 | 190 | 108 |
| 400 | 16″ | 380 | 301 | 30 | 597 | 27 | 125 | 4 | 14 | 150 | 28 | 216 | 145 |
| 450 | 18″ | 422 | 381 | 39 | 640 | 36 | 140 | 4 | 18 | 175 | 33 | 222 | 183 |
| 500 | 20″ | 479 | 387 | 39 | 710 | 36 | 140 | 4 | 18 | 175 | 40 | 229 | 230 |
| 600 | 24″ | 562 | 457 | 49 | 840 | 46 | 165 | 4 | 22 | 210 | 40 | 267 | 303 |
| 700 | 28″ | 560 | 465 | 95 | 910 | 63.35 | 254 | 8 | 18 | 300 | 40 | 292 | 410 |
| 750 | 30″ | 610 | 508 | 95 | 984 | 63.35 | 254 | 8 | 18 | 300 | 43 | 308 | 552 |
| 800 | 32″ | 620 | 519 | 95 | 1025 | 63.35 | 254 | 8 | 18 | 300 | 43 | 318 | 610 |
| 900 | 36″ | 692 | 576 | 130 | 1125 | 75 | 254 | 8 | 18 | 300 | 46 | 330 | 750 |
| 1000 | 40″ | 735 | 640 | 130 | 1255 | 85 | 254 | 8 | 22 | 300 | 50 | 410 | 945 |
| 1100 | 44″ | 813 | 735 | 150 | 1355 | 85 | 254 | 8 | 22 | 300 | 53 | 450 | 1120 |
| 1200 | 48″ | 917 | 783 | 150 | 1485 | 105 | 298 | 8 | 22 | 350 | 57 | 470 | 1350 |
| 1400 | 56″ | 1000 | 925 | 200 | 1685 | 120 | 356 | 8 | 32 | 415 | 60 | 530 | 1700 |
| 1500 | 60″ | 1050 | 950 | 200 | 1820 | 140 | 356 | 8 | 32 | 415 | 78 | 570 | 2000 |
| 1600 | 64″ | 1150 | 1045 | 200 | 1930 | 140 | 356 | 8 | 32 | 415 | 65 | 600 | 2500 |
| 1800 | 72″ | 1260 | 1156 | 280 | 2130 | 160 | 406 | 8 | 40 | 475 | 70 | 670 | 3500 |
| 2000 | 80″ | 1363 | 1350 | 280 | 2345 | 160 | 406 | 8 | 40 | 475 | 75 | 760 | 4000 |
| 2200 | 88″ | 1500 | 1430 | 300 | 2555 | 180 | 483 | 12 | 40 | 560 | 85 | 636 | 4500 |
FAQs
What is a butterfly valve used for?
The water supply and wastewater management sector depends on butterfly valves to control water flow and pressure. The oil and gas industry relies on butterfly valves to perform essential throttling operations and isolation duties in fuel handling systems. The utility of butterfly valves reaches HVAC systems and chemical industries and power generation plants which demonstrates their wide range of applications.
What are the different types of butterfly valves?
- Wafer Butterfly Valves: The valves have a compact wafer-like body that makes them suitable for systems where space is limited. The design of the valve allows for easy installation between pipe flanges and provides an effective shut-off in high-pressure environments.
- Lug Butterfly Valves: The valves feature lugs on their outer edge which enables bolted installation without nuts in a system. The design allows users to disconnect either side of the piping system without affecting the other side thus making them suitable for end-of-line applications.
- U-Style Flange Butterfly Valves: The valves use a U-shaped seal ring which prevents potential leakages while maintaining optimal performance under extreme operational conditions. The valves function as bi-directional flow controllers and shut-off devices when installed between two pipeline flanges.
- Double Offset Butterfly Valves: The two offset design from the centerline creates a tighter seal while reducing friction and extending the lifespan of these valves. The valves operate in high-pressure systems and challenging applications.
- Triple Offset Butterfly Valves: The design includes three offset components which produce a frictionless seal that minimizes wear and tear. These valves demonstrate high durability because they function well in critical applications that involve high temperatures and pressures.
How does a pneumatic butterfly valve work?
The valve activation sends compressed air through the pneumatic actuator which is a device connected to the valve. The compressed air entering the actuator causes its piston to move which results in shaft rotation. The disc turns when the shaft performs its rotational motion.
Table A flange size
| NPS | DN | OD | PCB | Bolt | n-bolt |
| 1/2 | DN15 | 95 | 67 | 14 | 4 |
| 3/4 | DN20 | 100 | 73 | 14 | 4 |
| 1 | DN25 | 115 | 83 | 14 | 4 |
| 11/4 | DN32 | 120 | 87 | 14 | 4 |
| 11/2 | DN40 | 135 | 98 | 14 | 4 |
| 2 | DN50 | 150 | 114 | 18 | 4 |
| 21/2 | DN65 | 165 | 127 | 18 | 4 |
| 3 | DN80 | 185 | 146 | 18 | 4 |
| 31/2 | (DN90) | 205 | 165 | 18 | 4 |
| 4 | DN100 | 215 | 178 | 18 | 4 |
| 5 | DN125 | 255 | 210 | 18 | 4 |
| 6 | DN150 | 280 | 235 | 18 | 4 |
| 8 | DN200 | 335 | 292 | 18 | 8 |
| 10 | DN250 | 405 | 356 | 22 | 8 |
| 12 | DN300 | 455 | 406 | 22 | 8 |
| 14 | DN350 | 525 | 470 | 26 | 8 |
| 16 | DN400 | 580 | 521 | 26 | 12 |
| 18 | DN450 | 640 | 584 | 26 | 16 |
| 20 | DN500 | 705 | 641 | 26 | 16 |
| 22 | (DN550) | 760 | 699 | 30 | 16 |
| 24 | DN600 | 825 | 756 | 30 | 16 |
| 26 | (DN650) | 845 | 781 | 30 | 16 |
| 28 | DN700 | 870 | 806 | 30 | 16 |
| 30 | (DN750) | 945 | 883 | 30 | 20 |
| 32 | DN800 | 1005 | 940 | 30 | 20 |
| 34 | (DN850) | 1030 | 965 | 30 | 20 |
| 36 | DN900 | 1105 | 1041 | 30 | 24 |
| 40 | DN1000 | 1180 | 1118 | 30 | 24 |
| 48 | DN1200 | 1415 | 1353 | 30 | 28 |
| 56 | DN1400 | 1700 | 1615 | 36 | 32 |
| 64 | DN1600 | 1910 | 1825 | 36 | 32 |
| 72 | DN1800 | 2110 | 2019 | 39 | 36 |
Table D flange size
| NPS | DN | OD | PCB | Bolt | n-bolt |
| 1/2 | DN15 | 95 | 67 | 14 | 4 |
| 3/4 | DN20 | 100 | 73 | 14 | 4 |
| 1 | DN25 | 115 | 83 | 14 | 4 |
| 11/4 | DN32 | 120 | 87 | 14 | 4 |
| 11/2 | DN40 | 135 | 98 | 14 | 4 |
| 2 | DN50 | 150 | 114 | 18 | 4 |
| 21/2 | DN65 | 165 | 127 | 18 | 4 |
| 3 | DN80 | 185 | 146 | 18 | 4 |
| 31/2 | (DN90) | 205 | 165 | 18 | 4 |
| 4 | DN100 | 215 | 178 | 18 | 4 |
| 5 | DN125 | 255 | 210 | 18 | 8 |
| 6 | DN150 | 280 | 235 | 18 | 8 |
| 8 | DN200 | 335 | 292 | 18 | 8 |
| 10 | DN250 | 405 | 356 | 22 | 8 |
| 12 | DN300 | 455 | 406 | 22 | 12 |
| 14 | DN350 | 525 | 470 | 26 | 12 |
| 16 | DN400 | 580 | 521 | 26 | 12 |
| 18 | DN450 | 640 | 584 | 26 | 12 |
| 20 | DN500 | 705 | 641 | 26 | 16 |
| 22 | (DN550) | 760 | 699 | 30 | 16 |
| 24 | DN600 | 825 | 756 | 30 | 16 |
Table E flange size
| NPS | DN | OD | PCB | Bolt | n-bolt |
| 1/2 | DN15 | 95 | 67 | 14 | 4 |
| 3/4 | DN20 | 100 | 73 | 14 | 4 |
| 1 | DN25 | 115 | 83 | 14 | 4 |
| 11/4 | DN32 | 120 | 87 | 14 | 4 |
| 11/2 | DN40 | 135 | 98 | 14 | 4 |
| 2 | DN50 | 150 | 114 | 18 | 4 |
| 21/2 | DN65 | 165 | 127 | 18 | 4 |
| 3 | DN80 | 185 | 146 | 18 | 4 |
| 31/2 | (DN90) | 205 | 165 | 18 | 8 |
| 4 | DN100 | 215 | 178 | 18 | 8 |
| 5 | DN125 | 255 | 210 | 18 | 8 |
| 6 | DN150 | 280 | 235 | 22 | 8 |
| 8 | DN200 | 335 | 292 | 22 | 8 |
| 10 | DN250 | 405 | 356 | 22 | 12 |
| 12 | DN300 | 455 | 406 | 26 | 12 |
| 14 | DN350 | 525 | 470 | 26 | 12 |
| 16 | DN400 | 580 | 521 | 26 | 12 |
| 18 | DN450 | 640 | 584 | 26 | 16 |
| 20 | DN500 | 705 | 641 | 26 | 16 |
| 22 | (DN550) | 760 | 699 | 30 | 16 |
| 24 | DN600 | 825 | 756 | 33 | 16 |
















