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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.
Elephant 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.
| 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 |
| 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 |

| № | 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 Elephant WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE
| Characteristic | Value |
|---|---|
| Pneumatic Actuator Type | Double-acting |
| Actuator Torque | 30-272 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 Connection | G1/4" |
| Operating Temperature Range | -20 to +80 °C |
| Connection Type | ISO 5211 |
| 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 Elephant
| № | 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 Elephant
| Characteristic | Value |
|---|---|
| Model of electro-pneumatic positioner | YT-1000RSN |
| Control input signal | 4-20 mA |
| Internal resistance | 250 ± 15 Ohm |
| Input pressure | 1.4-7 bar |
| Lever stroke angle | 0-90° |
| Compressed air connection thread | 1/4" |
| Gauge connection thread | 1/8" |
| Cable entry | G1/2" |
| Protection type | IP66 |
| Operating temperature | -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) |
| Air output consumption | 80 l/min (at 1.4 bar) |
| Housing material | Cast aluminum |
| 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 |

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