How it works
Manual quarter-turn gearbox
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
- Steam
- Aggressive Media
- Abrasive Media
- Water Supply
- Heating
- Chemical Industry
- Oil And Gas Industry
The butterfly valve is designed for use as a shut-off or control valve to control flows in heat supply systems, water supply systems, 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 by 90°. Opening is done by turning the handle counterclockwise, closing - clockwise.
The DNOVA HGB reducer allows you to manually set the required positioning of the shut-off element by a quarter turn, acting as an alternative to pneumatic, electric or hydraulic quarter-turn drives.
Butterfly valves for abrasive media DNOVA WBV1632E-2W-Fb DN40-300 PN16 body - cast iron QT450, disc - stainless steel 316L, seal - EPDM, with gearbox DNOVA HGB RQN
Technical characteristics of butterfly valves for abrasive media DNOVA WBV1632E-2W-Fb DN40-300 PN16 body - cast iron QT450, disc - stainless steel 316L, EPDM:
| Characteristic | Meaning |
| Shutter type | rotary disc |
| Diameter | 40-300 mm |
| Nominal pressure | 16 bar |
| Working environment temperature | from -20 to +110°C |
| Application | water supply, heat supply, chemical industry, oil and gas industry, food industry |
| Connection type | interflange |
| Control type | Manual (handle, gearbox) |
| Sealing class | A |
| Service life | 10 years |
| Guarantee | 12 months |
Reducers DNOVA HGB RQN
Technical characteristics of DNOVA HGB RQN gearboxes:
| Characteristic | Meaning |
| Working environment temperature | from -30 to +120 °C |
| Application | water supply, heat supply, chemical industry, oil and gas industry, food industry |
| Connection type | ISO 5211 |
Sketch of dimensions of butterfly valves for abrasive media DNOVA WBV1632E-2W-Fb DN40-300 PN16 body - cast iron QT450, disk - stainless steel 316L, EPDM
Overall and installation dimensions of butterfly valves for abrasive media DNOVA WBV1632E-2W-Fb DN40-300 PN16 body - cast iron QT450, disc - stainless steel 316L, EPDM:
| Diameter | L, mm | H, mm | H1, mm | D2, mm | D1, mm | nd, mm |
| DN40 | 43 | 147 | 70 | 92 | 125 | 4-23 |
| DN50 | 43 | 147 | 70 | 92 | 125 | 4-23 |
| DN65 | 46 | 155 | 76 | 110 | 145 | 4-23 |
| DN80 | 46 | 164 | 92 | 121 | 160 | 8-20 |
| DN100 | 52 | 175 | 106 | 153 | 180 | 4-23 |
| DN125 | 56 | 194 | 119 | 176 | 210 | 4-23 |
| DN150 | 56 | 206 | 132 | 207 | 240 | 4-25 |
| DN200 | 60 | 237 | 162 | 259 | 295 | 4-25 |
| DN250 | 68 | 282 | 200 | 316 | 355 | 4-28 |
| DN300 | 78 | 311 | 225 | 370 | 410 | 4-28 |
Sketch of the dimensions of the gearboxes DNOVA HGB RQN
Overall and installation dimensions of DNOVA HGB RQN gearboxes:
| Model | A, mm | B, mm | C, mm | D, mm | E, mm | F, mm | H, mm | d1, mm | D2, mm | D3, mm |
| HGB-1 | 165 | 127 | 84 | 66 | 12 | 47 | 73 | 35 | 81 | 50/70 |
| HGB-2 | 185 | 142 | 102 | 79 | 12 | 52 | 78 | 42 | 92 | 70(89) |
| HGB-3 | 250 | 190 | 140 | 112 | 16 | 68 | 108 | 55 | 125 | 70/102/125 |
| HGB-4 | 300 | 220 | 164 | 120 | 20 | 71 | 111 | 70 | 140 | 102/140(125) |
Sketch of materials of butterfly valves for abrasive media DNOVA WBV1632E-2W-Fb DN40-300 PN16 body - cast iron QT450, disk - stainless steel 316L, EPDM
Materials of parts of butterfly valves for abrasive media DNOVA WBV1632E-2W-Fb DN40-300 PN16 body - cast iron QT450, disk - stainless steel 316L, EPDM:
| No. | Part name | Material |
| 1 | Frame | cast iron QT450 |
| 2 | Disk | Stainless steel 316L |
| 3 | Saddle seal | EPDM + wear-resistant material (siliclone+graphite) |
| 4 | Stock | steel 2Cr13 |
Sketch of gearboxes DNOVA HGB RQN
Design of DNOVA HGB RQN gearboxes:
| No. | Name | Material |
| 1 | Transparent indicator cover | PC Plycarton resin |
| 2 | Screw | steel 304 |
| 3 | Screw | steel 304 |
| 4 | Lid | aluminum ADC 12 |
| 5 | Worm gear reducer | cast iron QT450 |
| 6 | Adjusting screw | steel 304 |
| 7 | Rack | steel 45 |
| 8 | Case | butadiene-acrylonityl rubber |
| 9 | Sleeve | PZ2175 based on ketones |
| 10 | Bearing | alloy steel |
| 11 | Frame | aluminum ADC 12 |
| 12 | Bearing | alloy steel |
| 13 | Seal | rubber |
| 14 | Washer | steel 304 |
| 15 | Screw | steel 304 |
| 16 | Axis | steel 45 |
| 17 | Limit switch | - |
| 18 | Sealing ring | butadiene-acrylonityl rubber |
- Body material
- cast iron QT450
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Gearbox
- Operating environment
- Water, Steam, Aggressive Media, and Abrasive Media
- Applications
- Water Supply, Heating, Chemical Industry, Oil And Gas Industry, and Food Industry
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L
- Limit switches
- No
- 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