Description
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.
Pneumatic DNOVA pneumatic double-acting rotary actuators PA-DA-XXX and pneumatic rotary actuators with return spring PA-SA-XXX are designed for automation of industrial valves control process with maximum torque up to 2128 Nm.
Electropneumatic rotary positioner is used to control pneumatic rotary actuators by means of 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 characteristics of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA YT-1000RSN with feedback:
|
Characteristic |
Value |
|
Type of valve |
Rotary disc |
|
Diameter |
15–100 mm |
|
Nominal pressure |
10 bar |
|
Working medium temperature |
From -50 to +180°C |
|
Application |
Food industry |
|
Type of connection |
For welding |
|
Type of control |
Pneumatic actuator |
|
Tightness class |
A |
|
Warranty |
12 months |
Technical data of pneumatic rotary actuators with return springs DNOVA PA-SA-XXX:
|
Characteristic |
Value |
|
Type of pneumatic actuator |
With return springs |
|
Actuator torque |
14–30 Nm |
|
Nominal pressure |
12 bar |
|
Operating pressure |
2...8 bar |
|
Maximum particle diameter |
Less than 30 µm² |
|
Working medium |
Filtered compressed air or non-aggressive gases, oils |
|
Adjustment range |
±5° for rotation at 0° and 90° |
|
Air supply |
G1/4" |
|
Working medium temperature |
From -20 to +80 °C |
Technical characteristics of electropneumatic rotary positioners DNOVA YT-1000RSN with feedback:
|
Characteristic |
Value |
|
Model of electropneumatic positioner |
YT-1000RSN |
|
Control signal input |
4–20 mA |
|
Internal resistance |
250 ± 15 ohms |
|
Input pressure |
1.4–7 bar |
|
Lever travel angle |
0–90° |
|
Compressed air connection thread |
1/4" |
|
Pressure gauge connection thread |
1/8" |
|
Cable gland |
G1/2" |
|
Protection rating |
IP66 |
|
Operating temperature |
From -20°C to +70°C |
|
Permissible ambient humidity |
10-90RH |
|
Linearity |
±1% |
|
Hysteresis |
±1% |
|
Sensitivity |
±0.5% |
|
Repeatability |
±0.5% |
|
Compressed air consumption |
3 l/min (at 1.4 bar pressure) |
|
Air output flow |
80 l/min (at 1.4 bar pressure) |
|
Body material |
Aluminum casting |
Overall and installation sizes of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA YT-1000RSN with feedback:
| Diameter | D, mm | t, mm | D1, mm | A, mm | H, mm | J, mm | K, mm |
| DN15 | 18 | 1.5 | 78 | 50 | 86 | 126 | 8x8 |
| DN20 | 23 | 1.5 | 78 | 50 | 86 | 126 | 8x8 |
| DN25 | 29 | 1.5 | 78 | 50 | 86 | 126 | 8x8 |
| DN32 | 35 | 1.5 | 86 | 50 | 90 | 126 | 8x8 |
| DN40 | 41 | 1.5 | 90 | 50 | 92 | 126 | 8x8 |
| DN50 | 53 | 1.5 | 106 | 52 | 104 | 133 | 10x10 |
| DN65 | 70 | 2.0 | 124 | 56 | 113 | 144 | 10x10 |
| DN80 | 85 | 2.0 | 139 | 60 | 123.5 | 160 | 10x10 |
| DN100 | 104 | 2.0 | 159 | 64 | 133.5 | 160 | 10x10 |
Dimensions and mounting sizes of rotary pneumatic actuators DNOVA with return springs PA-SA-XXX:
| Model | A, mm | B, mm | C, mm | D, mm | E, mm | F, mm | G, mm | M, mm | N, mm | O, mm | P, mm |
| PA-DA(SA)-052 | 108 | 153 | 30 | 41 | 72 | 26 | 15 | 80 | 30 | 34 | 20 |
| PA-DA(SA)-065 | 125 | 174 | 36 | 46 | 89 | 26 | 15 | 80 | 30 | 34 | 20 |
| PA-DA(SA)-083 | 152 | 216 | 46 | 55 | 109 | 26 | 15 | 80 | 30 | 34 | 20 |
| PA-DA(SA)-105 | 189 | 279 | 55 | 64 | 134 | 26 | 25 | 80 | 30 | 41 | 20 |
| PA-DA(SA)-130 | 210 | 308 | 67.5 | 70 | 157 | 36 | 25 | 80 | 30 | 62 | 30 |
| PA-DA(SA)-140 | 268 | 405 | 76 | 77 | 174 | 36 | 30 | 130 | 30 | 62 | 30 |
| PA-DA(SA)-160 | 310 | 465 | 87.5 | 87.5 | 199 | 38 | 30 | 130 | 30 | 62 | 30 |
| PA-DA(SA)-210 | 390 | 542 | 113 | 113 | 257 | 38 | 40 | 130 | 30 | 79 | 30 |
| PA-DA(SA)-270 | 510 | 722 | 146 | 146 | 333 | 38 | 52 | 130 | 30 | 79 | 30 |
Overall and installation sizes of electropneumatic rotary positioners DNOVA YT-1000RSN with feedback:
| A, mm | 224.3 |
| B, mm | 165.5 |
| 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 |
Materials of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-SA-XXX and positioner DNOVA 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 |
Construction of rotary pneumatic actuators DNOVA with return springs PA-SA-XXX:
|
№ |
Name |
Quantity |
Material |
Coating |
|
1 |
Body |
1 |
Extruded aluminum |
Hard anodized |
|
2 |
Side plugs |
2 |
Cast aluminum |
- |
|
3 |
Gear |
1 |
Stainless steel |
Nickel-plated |
|
4 |
Piston |
2 |
Steel/Aluminum |
Oxidation/galvanized |
|
5 |
Plugs |
8 |
Stainless steel |
- |
|
6 |
Piston ring |
2 |
NBR |
- |
|
7 |
Springs |
0–12 |
Spring steel |
Epoxy coating |
|
8 |
Piston bearing |
2 |
Engineering plastic |
- |
|
9 |
Piston ring |
2 |
NBR |
- |
|
10 |
Plug |
2 |
NBR |
- |
|
11 |
Thrust ring |
2 |
Engineering plastic |
- |
|
12 |
Ring |
1 |
Engineering plastic |
- |
|
13 |
Washer |
1 |
Stainless steel |
- |
|
14 |
Spring clip |
2 |
Stainless steel |
- |
|
15 |
Indicator |
1 |
Plastic |
- |
|
16 |
Indicator body |
1 |
Plastic |
- |
|
17 |
Bearing |
1 |
Engineering plastic |
- |
|
18 |
Cam |
1 |
Steel |
Oxidation/ galvanized steel |
|
19 |
Bearing |
1 |
NBR |
- |
|
20 |
Bearing |
1 |
Engineering plastic |
- |
|
21 |
Bearing |
1 |
Engineering plastic |
- |
|
22 |
Sealing ring |
2 |
NBR |
- |
|
23 |
Sealing ring |
2 |
NBR |
- |
|
24 |
Bearing |
2 |
Stainless steel |
- |
|
25 |
Adjustment nut |
2 |
Stainless steel |
- |
|
26 |
Adjustment screw |
2 |
Stainless steel |
- |
|
27 |
Bushing |
2 |
Aluminum |
- |
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
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