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
Butterfly valves DNOVA are used as shut-off and regulating valves for flow control in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper industries.
Dimensions and dimensions of water butterfly valves DNOVA WCB-316L-NBR body material - Carbon steel WCB, disk material - Stainless steel AISI 316L, seal - NBR with gear DNOVA HAM:
| DN | H1, mm | H2, mm | Dm, mm | Dk, mm | L, mm | ØC, mm |
| DN40/50 | 66 | 126 | 73 | 90 | 43 | 125 |
| DN50 | 66 | 126 | 73 | 90 | 43 | 125 |
| DN65 | 74 | 137 | 85 | 103 | 46 | 145 |
| DN80 | 91 | 146 | 100 | 116 | 46 | 160 |
| DN100 | 105 | 166 | 131 | 151 | 52 | 180 |
| DN125 | 121 | 182 | 155 | 174 | 56 | 210 |
| DN150 | 134 | 198 | 184 | 205 | 56 | 240 |
| DN200 | 169 | 223 | 234 | 255 | 60 | 295 |
| DN250 | 200 | 270 | 288 | 315 | 68 | 355 |
| DN300 | 240 | 299 | 340 | 375 | 78 | 410 |
Sketch Butterfly valves DNOVA WCB-316L-NBR body material - Carbon steel WCB, disk material - Stainless steel AISI 316L, seal - NBR with gear DNOVA HAM
Materials of water butterfly valves DNOVA WCB-316L-NBR body material - Carbon steel WCB, disk material - Stainless steel AISI 316L, seal - NBR with gear DNOVA HAM:
| № | Name | Material |
| 1 | Housing | WCB steel or AISI 316L stainless steel |
| 2 | Cuff | EPDM, PTFE, NBR |
| 3 | Disc | AISI 316L stainless steel |
| 4 | Rod | SS 416/2Cr13 stainless steel |
| 5 | Pin | AISI 316L stainless steel |
| 6 | Bushing | EPDM |
| 7 | Sealing ring | EPDM |
| 8 | Fixing plate | carbon steel |
| 9 | Handle with lock | carbon steel |
Sketch of specification water Butterfly Valve DNOVA
- Body material
- Carbon steel
- Maximum allowable temperature
- 85 °C
- Connection type
- Compact flanged
- Control type
- Gear
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- Disc material
- Stainless steel AISI 316L/1.4404
- Explosion-proof
- No
- Thermal protection
- No
- Torque
- 128 Nm
- Electropneumatic positioner
- No
- Pneumatic actuator
- No
- Manual override
- Yes
- 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