How it works
Double-acting rotary actuator
Butterfly disc
The number that matters
Nominal pressure
10bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
Applications
Media and industries
- Water
- Steam
- Food environment
- Neutral Media
- Food Industry
Butterfly valves are designed for use as shut-off or regulating valves for controlling flows in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries. Operating principle: The valves are opened and closed by turning the disk by 90°. Opening is performed by turning the handle counterclockwise, closing - clockwise.
PA-DA double-acting pneumatic rotary actuators and PA-SA pneumatic rotary actuators with return spring are designed for automation of industrial valve control process with maximum torque up to 2128 Nm.
The electropneumatic rotary positioner is used for controlling pneumatic rotary actuators by means of an electric controller or control system with analog DC output signal range from 4 to 20 mA.
Operating principle: The positioner functions based on the balancing of forces. The positioner uses a nozzle-flap type device and a feedback servomechanism (spring and lever system) to balance the control and feedback forces when the pneumatic actuator (valve) reaches the position corresponding to the control signal.
Technical parameters of Water Butterfly valves DNOVA WBV3131S-2W-W-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-DA-052 double action, YT-1000RSN with feedback:
| Characteristic | meaning |
| Gate type | rotary disk |
| Diameter | 15-100 mm |
| Nominal pressure | 10 bar |
| Working medium temperature | -50 to +180°C |
| Application | Food industry |
| Connection type | welded |
| Control type | pneumatic actuator |
| Sealing class | A |
| Manufacturer's country | China |
| Warranty | 12 months. |
Butterfly valves WBV3131S-2W-W-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-DA-052 double action, YT-1000RSN with feedback
Dimensions and dimensions of butterfly valves DNOVA WBV3131S-2W-W-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-DA-052 double action, YT-1000RSN with feedback:
| Diameter | D, mm | t, mm | D1, mm | A, mm | H, mm | K, mm |
| DN15 | 18 | 1.5 | 78 | 50 | 86 | 8x8 |
| DN20 | 23 | 1.5 | 78 | 50 | 86 | 8x8 |
| DN25 | 29 | 1.5 | 78 | 50 | 86 | 8x8 |
| DN32 | 35 | 1.5 | 86 | 50 | 90 | 8x8 |
| DN40 | 41 | 1.5 | 90 | 50 | 92 | 8x8 |
| DN50 | 53 | 1.5 | 106 | 52 | 104 | 10x10 |
| DN65 | 70 | 2 | 124 | 56 | 113 | 10x10 |
| DN80 | 85 | 2 | 139 | 60 | 123.5 | 10x10 |
| DN100 | 104 | 2 | 159 | 64 | 133.5 | 10x10 |
Sketch Butterfly valves WBV3131S-2W-W-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-DA-052 double action, YT-1000RSN with feedback
Materials of butterfly valves DNOVA WBV3131S-2W-W-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-DA-052 double action, YT-1000RSN with feedback:
| № | Part Name | Material |
|---|---|---|
| 1 | Body | Stainless steel AISI 304 |
| 2 | Rotary unit | Stainless steel AISI 304 |
| 3 | Disc | Stainless steel AISI 304 |
| 4 | Seat seal | EPDM or Silicon |
| 5 | Nut | Steel A2~70 |
| 6 | Bolt | Steel A2~70 |
| 7 | Plug | ABS plastic |
| 8 | Handle | Polyamide plastic |
Sketch of parts and materials Butterfly valves WBV3131S-2W-W-H, body material - stainless steel AISI 304, seal - Silicon, with pneumatic actuator PA-DA-052 double action, YT-1000RSN with feedback
Technical data of DA double-acting pneumatic actuators:
| Type of pneumatic actuator | DA - double-acting |
| Nominal pressure PN, bar | 12 |
| Working pressure, bar | 2...8 |
| Working medium | filtered compressed air |
| Maximum particle diameter of the working medium, µm2 | ≤30 |
| Ambient temperature, °C | -20 to +80 |
| Swivel angle, ° | 0 - 90 |
| Swivel angle adjustment, % | ±5 |
| Position indicator | open/closed |
| Top connection standard | NAMUR |
| Air connection standard | NAMUR |
| Average life, cycles closed/open | 70 000 (for non-aggressive media and medium pressure and temperature values) |
DA pneumatic actuators double-acting rotary actuators
Dimensions and mounting dimensions of DA double-acting pneumatic actuators:
| Model | A, mm | B, mm | C, mm | D, mm | E, mm | F, mm | G, mm | H, mm |
| PA-x-052 | 30 | 41,5 | 65,5 | 72 | 92 | 65 | 30 | 80 |
| PA-x-065 | 36 | 47 | 81 | 88 | 108 | 72 | 30 | 80 |
| PA-x-083 | 46 | 57 | 98,5 | 108,7 | 128,7 | 92 | 30 | 80 |
| PA-x-105 | 57,5 | 64 | 122,5 | 133 | 153 | 109,5 | 30 | 80 |
| PA-x-130 | 67,5 | 74,5 | 145,5 | 155 | 185 | 127,5 | 30 | 130 |
| PA-x-140 | 75 | 77 | 161 | 172 | 202 | 137,5 | 30 | 130 |
| PA-x-160 | 87 | 87 | 184 | 197 | 227 | 159 | 30 | 130 |
| PA-x 210 | 113 | 113 | 235,5 | 255 | 285 | 210 | 30 | 130 |
| PA-x-270 | 147 | 147 | 299 | 326 | 356 | 273 | 30 | 130 |
| PA-x-300 | 162 | 174 | 330 | 350 | 380 | 312 | 30 | 130 |
| PA-x-350 | 190 | 195 | 483 | 410 | 440 | 365 | 30 | 130 |
| Model | I, mm | J, mm | M, mm | N, mm | Z, mm | d, mm | K | L |
| PA-x-052 | 36 | 50 | 11x11 | 14 | 147 | 40 | M5x8 | M6x10 |
| PA-x-065 | 50 | 70 | 14x14 | 18 | 168 | 40 | M6x10 | M8x13 |
| PA-x-083 | 50 | 70 | 17x17 | 21 | 204 | 40 | M6x10 | M8x13 |
| PA-x-105 | 70 | 102 | 22x22 | 26 | 268 | 40 | M8x13 | M10x16 |
| PA-x-130 | 70 | 102 | 22x22 | 26 | 301 | 55 | M8x13 | M10x16 |
| PA-x-140 | 102 | 125 | 27x27 | 31 | 390 | 55 | M10x16 | M12x20 |
| PA-x-160 | 102 | 125 | 27x27 | 31 | 458 | 55 | M10x16 | M12x20 |
| PA-x-210 | - | 140 | 36x36 | 40 | 532 | 80 | - | M16x25 |
| PA-x-270 | - | 165 | 46x46 | 50 | 718 | 80 | - | M20x25 |
| PA-x-300 | - | 165 | 46x46 | 50 | 760 | 80 | - | M20x25 |
| PA-x-350 | 165 | 254 | 46x46 | 50 | 920 | 80 | M20x25 | 8xM16x25 |
Sketch of dimensions of DA double-acting pneumatic actuators
Materials of parts for DA double-acting pneumatic actuators:
| № | Part name | Material |
| 1 | Indicator screw | ABS plastic |
| 2 | Position indicator | ABS plastic |
| 3 | Spring clip | stainless steel 304 |
| 4 | Metal washer | stainless steel 304 |
| 5 | Pressure washer | engineering plastic |
| 6 | Housing | hard anodized extruded aluminum alloy |
| 7 | Pressure washer | engineering plastic |
| 8 | Limiter | alloy steel |
| 9 | Shaft sealing ring upper | NBR |
| 10 | Upper shaft sliding ring | engineering plastic |
| 11 | Shaft | nickel plated alloy steel |
| 12 | Shaft sliding ring lower | engineering plastic |
| 13 | Shaft O-ring lower | NBR |
| 14 | Plug | NBR |
| 15 | Seal ring of adjusting screws | NBR |
| 16 | Washer of adjusting screw | stainless steel 304 |
| 17 | Lock nut of adjusting screw | stainless steel 304 |
| 18 | Adjusting screw | stainless steel 304 |
| 19 | Piston | die-cast aluminum alloy |
| 20 | Piston guide plate | engineering plastic |
| 21 | Piston sliding ring | engineering plastic |
| 22 | Piston O-ring | NBR |
| 23 | Spring set | spring steel |
| 24 | Cover O-ring | NBR |
| 25 | End cap | cast aluminum with polyester coating |
| 26 | Cover screw | stainless steel 304 |
| 27 | Stop screw | stainless steel 304 |
| 28 | Adapter | carbon steel |
Material sketch of DA double-acting pneumatic actuators
Technical parameters of electropneumatic rotary positioners:
| Name | Value |
| Control input signal, mA | 4 ~ 20 |
| Internal resistance, Ohm | 250(±15) |
| Input pressure, bar | 1,4~7 |
| Lever travel angle | 0~90° |
| Compressed air connection thread | 1/4″ |
| Pressure gauge connection thread | 1/8″ |
| Cable gland | G1/2″ |
| Protection type | IP66 |
| Compressed air flow rate, l/min | 3 |
| Output air flow rate, l/min | 80 |
| Housing material | aluminum casting |
Electropneumatic rotary positioners
Dimensions and dimensions of electropneumatic rotary positioners:
| Positioner model | YT-1000RSN |
| A, mm | 224.3 |
| B, mm | 166.5 |
| C, mm | 117.5 |
| D, mm | 132.3 |
| E, mm | 6 |
| F, mm | 122 |
| G, mm | 45 |
| H, mm | 45 |
| I, mm | 23 |
| J, mm | 27 |
| K, mm | 32.5 |
| L, mm | 35.5 |
| M, mm | 91.8 |
| N, mm | 37.2 |
| O, mm | 43.5 |
| P, mm | 26.5 |
| Q, mm | 33 |
| R, mm | 80.25 |
| S, mm | 62.5 |
| T, mm | 8 |
| U1, mm | 70 |
| U2, mm | 93 |
| V1, mm | 40 |
| V2, mm | 63 |
| W, mm | 26 |
| X, mm | 32 |
| Y, mm | 9 |
| Z, mm | 24 |
Sketch of dimensions and dimensions of electropneumatic rotary positioners
- Body material
- Stainless steel AISI 304
- Maximum allowable temperature
- 180 °C
- Connection type
- For welding
- Control type
- Pneumatic actuator
- Operating environment
- Water, Steam, Food environment, and Neutral Media
- Applications
- Food Industry
- Nominal pressure
- 10 bar
- Type of seal
- Silicone
- Locking material
- stainless steel AISI 304
- Manual override
- No
- Limit switches
- No
- Control signal
- 4-20 mA
- Actuator model
- PA-DA-052
- Type of pneumatic actuator
- double action
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal