Shopping security
The butterfly valve is designed to be used as a shut-off or control valve to control flows in heat supply systems, water supply, in technological processes in the food, chemical, oil and gas, pulp and paper and other industries.
Operating principle: The valves open and close by turning the disk 90°. Opening is done by turning the handle counterclockwise, closing - clockwise. A special feature of the valves of this series is the complete coating of the flow part and the disk with PTFE material, which eliminates contact of the working medium with the materials of the main parts.
The Elephant HGB reducer allows you to manually set the required positioning of the shut-off element by a quarter of a turn, acting as an alternative to pneumatic, electric or hydraulic quarter-turn actuators. Suitable for ball valves, butterfly valves, valves with a rotation angle of 90°, as well as for controlling air dampers.
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 | Meaning |
| Shutter type | rotary disc |
| Diameter | 50-250 mm |
| Nominal pressure | 16 bar |
| Working environment temperature | from -10 to +150°C |
| Application | water supply, heat supply, chemical industry, oil and gas industry, food industry, pulp and paper industry |
| Connection type | interflange |
| Control type | Manual (handle, gearbox) |
| Sealing class | A |
| Service life | 10 years |
| Guarantee | 12 months |

| Characteristic | Meaning |
| Working environment temperature | from -30 to +120 °C |
| Application | water supply, heat supply, chemical industry, oil and gas industry, food industry, pulp and paper industry |
| Connection type | ISO 5211 |

| Diameter | 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 |

| Size | HGB RQN1-180Z | HGB RQN2-320Z | HGB RQN3-680Z | HGB RQN4-1200Z |
| D2, mm | 81 | 92 | 125 | 140 |
| D3, mm | 50/70 | 70 | 70/102/125 | 102/140 |
| d1, mm | 35 | 42 | 55 | 70 |
| A, mm | 165 | 185 | 250 | 300 |
| B, mm | 127 | 142 | 190 | 220 |
| C, mm | 84 | 102 | 140 | 164 |
| D, mm | 66 | 79 | 112 | 120 |
| E, mm | 12 | 12 | 16 | 20 |
| F, mm | 47 | 52 | 68 | 71 |
| H, mm | 73 | 78 | 108 | 111 |

| № | 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 |

| Item No. | Details | Material |
| 1 | Transparent indicator cover | polycarbonate |
| 2 | Screw | stainless steel 304 |
| 3 | Screw | stainless steel 304 |
| 4 | Lid | ADC 12 aluminum alloy |
| 5 | Worm wheel | malleable iron QT450 |
| 6 | Adjusting screw | stainless steel 304 |
| 7 | Worm shaft | steel 45 |
| 8 | Plug | NBR |
| 9 | Sleeve | polymer PZ2175 |
| 10 | Bearing | alloy steel |
| 11 | Frame | ADC 12 aluminum alloy |
| 12 | Bearing | alloy steel |
| 13 | Seal | rubber |
| 14 | Washer | stainless steel 304 |
| 15 | Screw | stainless steel 304 |
| 16 | Axis | steel 45 |
| 17 | Sealing ring | NBR |
Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
US$40
Get nowSign up to your membership to get coupons up to
15%
Get nowOpportunity to enjoy order discount up to 15% off
Top-Converting Item to Boost Your Average Order