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 done 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.
Limit switch unit is designed for visual and electrical signaling of end positions of the valve shut-off body: valve, tap or disk gate. It is mounted on top of the pneumatic actuator surface and is connected to the actuator shaft in DIN standard. The sealed box usually contains two sensors, which monitor the position of the actuator shaft and signalize in extreme positions. OMRON microswitches, inductive sensors or reed switches are used as sensors.
Technical characteristics of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-DA-XXX and LSU DNOVA APL-210N:
|
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 double-acting pneumatic rotary actuators DNOVA PA-DA-XXX:
|
Characteristic |
Value |
|
Type of pneumatic actuator |
Double-acting |
|
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 limit switch units DNOVA APL-210N:
| Value | Execution |
| Model of limit switch unit | APL-210N |
| Protection | All-weather IP65 |
| Ambient temperature | From -40°C to +80°C |
| Cable gland threads | 2 x NPT1/2" |
| Terminal block | 8 cells 0.08-2.6mm² |
| Voltage | 12V, 24V, 38V, 48V, 110V, 220V, 250V |
| Indicator position | CLOSED: red OPEN: green |
| Sensor | 2 SPDT electromechanical microswitches OMRON V151-1C25 |
| External coating | Polyester coating (black) |
| Shaft | Standard shaft (17mm) |
Overall and installation sizes of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-DA-XXX and LSU DNOVA APL-210N:
| 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 double-acting rotary pneumatic actuators DNOVA PA-DA-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 |
Dimensions and installation sizes of limit switch units DNOVA APL-210N:
| Depth, mm | 112 |
| Height, mm | 77 |
| Width, mm | 88 |
Materials of butterfly valves DNOVA WBV3131S-2W-W-H food grade stainless steel 304, seal - Silicon, with pneumatic actuator DNOVA PA-DA-XXX and LSU DNOVA APL-210N:
| № | 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 double-acting pneumatic rotary actuators DNOVA PA-DA-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
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