Parts
How it works
Quarter-turn lever
Butterfly disc
Limit-switch box
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 valve DNOVA 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.
Butterfly valves should only be installed between collar flanges.
General parameters of DNOVA 316L-316L-NBR body material - stainless steel AISI 316L, disk material - stainless steel AISI 316L, seal - NBR with handle, with two limit switches LS-103 250V and a bracket for mounting limit switches:
|
Range of sizes DN, mm |
40-150 |
|
Nominal pressure PN, bar |
16 |
|
Flow direction |
Two-way |
|
Ambient temperature t, °C |
From -20 to +200 |
|
Connection to pipeline |
Interflange |
Dimensions of DNOVA 316L-316L-VITON body material - stainless steel AISI 316L, disk material - stainless steel AISI 316L, seal - Viton with handle, with two LS-103 250V limit switches and a bracket for mounting the limit switches:
| DN | H1, mm | H2, mm | H3, mm | Dm, mm | Dk, mm | L, mm | ØC, mm |
| DN40/50 | 62 | 126 | 25 | 73 | 90 | 43 | 125 |
| DN50 | 62 | 126 | 25 | 73 | 90 | 43 | 125 |
| DN65 | 72 | 133 | 25 | 85 | 103 | 46 | 145 |
| DN80 | 91 | 142 | 25 | 100 | 116 | 46 | 160 |
| DN100 | 107 | 165 | 25 | 131 | 151 | 52 | 180 |
| DN125 | 121 | 183 | 25 | 155 | 174 | 56 | 210 |
| DN150 | 134 | 195 | 25 | 184 | 205 | 56 | 240 |
| DN200 | 171 | 236 | 35 | 234 | 255 | 60 | 295 |
| DN250 | 197 | 276 | 35 | 288 | 315 | 68 | 355 |
| DN300 | 240 | 315 | 35 | 340 | 375 | 78 | 410 |
Table of parts and materials of DNOVA 316L-316L-VITON body material - stainless steel AISI 316L, disk material - stainless steel AISI 316L, seal - Viton with handle, with two LS-103 250V limit switches and a bracket for mounting the limit switches:
| № | 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 |
Sketch of specification water Butterfly Valve DNOVA
Hydraulic tests of the housing are carried out with a pressure 1.5 times the working pressure.
Hydraulic tests of the packing gland and seat seal are carried out with pressure exceeding the working pressure by 1.1 times.
- Body material
- Stainless steel AISI 316
- Maximum allowable temperature
- 85 °C
- Connection type
- Compact flanged
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- Disc material
- Stainless steel AISI 316L/1.4404
- Torque
- 50 Nm
- Pneumatic actuator
- No
- Manual override
- Yes
- Limit switches
- Yes
- 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.