How it works
Spring-return rotary actuator
Butterfly disc
The number that matters
Nominal pressure
16bar
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
- Acids
- Alkalis
- Chemical Environment
- Water Supply
- Heating
- Chemical Industry
- Oil And Gas Industry
Rotary disc gate valve is designed for use as shut-off or regulating valves for flow control 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 disc by 90°. Opening is performed by turning the handle anti-clockwise, closing - clockwise. The peculiarity of the gate valves of this series is the complete covering of the flow part and disc with PTFE material, which makes it possible to exclude the contact of the working medium with the materials of the main parts.
DNOVA pneumatic double-acting rotary actuators PA-DA and pneumatic rotary actuators with return spring PA-SA are designed for automation of industrial valve control process with maximum torque up to 2128 Nm.
The pneumatic valve is used to change the direction, start, stop the compressed air flow in the pneumatic system depending on the external control action.
A distinctive feature of this series of valves is that the flow path and disc are completely coated with PTFE, which prevents the working medium from coming into contact with the materials of the main components.
Technical characteristics of butterfly valves DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE
| Characteristic | Value |
|---|---|
| Type of valve | Rotary disc |
| Diameter | 50-300 mm |
| Nominal pressure | 16 bar |
| Operating temperature | -10 to +150°C |
| Application | water supply, heat supply, chemical industry, oil and gas industry, food industry, pulp and paper industry |
| Connection type | Wafer |
| Control type | Pneumatic actuator |
| Leakage class | A |
| Country of origin | China |
| Service life | 10 years |
| Warranty | 12 months |
Dimensions and dimensions of butterfly valves DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE
| DN | L, mm | D1, mm | D2, mm | Z-Ød, mm | H1, mm |
| DN50 | 43 | 125 | 100 | 2-Ø18 | 80 |
| DN65 | 46 | 145 | 120 | 2-Ø18 | 90 |
| DN80 | 46 | 160 | 135 | 4-Ø18 | 100 |
| DN100 | 52 | 180 | 155 | 4-Ø18 | 110 |
| DN125 | 56 | 210 | 185 | 4-Ø18 | 120 |
| DN150 | 56 | 240 | 210 | 4-Ø18 | 150 |
| DN200 | 60 | 295 | 265 | 4-Ø18 | 170 |
| DN250 | 68 | 355 | 320 | 4-Ø18 | 190 |
| DN300 | 78 | 410 | 375 | 4-Ø18 | 230 |
Table of parts and materials for butterfly valves DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE
| № | Part Name | Material |
|---|---|---|
| 1 | Body |
DN50÷200 – Carbon steel WCB, lined with PTFE; |
| 2 | Disc | DN50÷200 – Carbon steel WCB, lined with PTFE; DN150÷200 – Carbon steel WCB, lined with PTFE; DN250÷300 – Carbon steel WCB, lined with PFA (enhanced PTFE) |
| 3 | Shaft | DN50÷200 – Stainless steel 2Cr13; DN150÷250 – Stainless steel 2Cr13; DN300 – Steel 45 |
| 4 | Seat seal | PTFE |
Parts and materials sketch for butterfly valves DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE
Technical parameters of pneumatic actuator DNOVA
| Characteristic | Value |
|---|---|
| Pneumatic Actuator Type | Double-acting |
| Actuator Torque | 30-272Nm |
| 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 Connection | G1/4" |
| Operating Temperature Range | -20 to +80 °C |
| Connection Type | ISO 5211 |
Dimensions and dimensions of pneumatic actuator DNOVA
| Model | A | B | C | D | E | F | G | M | N | O | P |
| 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 |
Sketch of dimensions and dimensions of pneumatic actuator DNOVA
Parts and materials table for pneumatic actuator DNOVA
| № | Name | Qty | Material | Coating |
|---|---|---|---|---|
| 1 | Housing | 1 | Extruded aluminum | Hard anodized |
| 2 | Side plugs | 2 | Cast aluminum | |
| 3 | Gear | 1 | Stainless steel | Nickel-plated |
| 4 | Piston | 2 | Steel/Aluminum | Oxidation/Galvanic zinc coating |
| 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 | Stop ring | 2 | Engineering plastic | |
| 12 | Ring | 1 | Engineering plastic | |
| 13 | Washer | 1 | Stainless steel | |
| 14 | Spring clamp | 2 | Stainless steel | |
| 15 | Indicator | 1 | Plastic | |
| 16 | Indicator housing | 1 | Plastic | |
| 17 | Bearing | 1 | Engineering plastic | |
| 18 | Cam | 1 | Steel | Oxidation/Galvanic zinc coating |
| 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 |
Sketch of rotary pneumatic actuators DNOVA
- Body material
- Carbon steel
- Maximum allowable temperature
- 180 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Operating environment
- Water, Acids, Alkalis, and Chemical Environment
- Applications
- Water Supply, Heating, Chemical Industry, Oil And Gas Industry, Food Industry, and Pulp And Paper Industry
- Nominal pressure
- 16 bar
- Type of seal
- PTFE
- Disc material
- Carbon steel
- Manual override
- No
- Limit switches
- No
- Type of pneumatic actuator
- with return springs
- Angle of rotation
- 90°
- 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