How it works
Knife gate
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
The gate valve is designed for installation on the pipeline as a shut-off device and regulation of the working medium flow in water supply systems (except for drinking water supply systems) and chemical industry.
The principle of operation of the gate valve is to move the gate (knife) perpendicular to the flow of medium. At full closing of the pipeline nominal bore diameter the flow is stopped, at partial closing the flow is regulated.
The principle of operation of pneumatic actuator is based on the movement of the built-in piston due to compressed air, which is supplied to the system from a compressor or tank.
Overall and installation dimensions DNOVA GVKR3131M-1W-Fb-2P knife gate gate valves, body material - stainless steel AISI 304, knife material - stainless steel AISI 304, seal - metal, pneumatic actuator:
| DN | L, mm | D, mm | D1, mm | D2, mm | D0, mm | H1, mm | T, mm | d, mm | ● | O | N-Th, mm | G |
| 50 | 48 | 165 | 125 | 99 | 100 | 417 | 12 | 18 | 2 | 2 | 4-M16 | 1/2″ |
| 65 | 48 | 185 | 145 | 118 | 100 | 460 | 12 | 18 | 2 | 2 | 4-M16 | 1/2″ |
| 100 | 51 | 220 | 180 | 156 | 100 | 600 | 12 | 18 | 2 | 6 | 8-M16 | 1/2″ |
| 125 | 57 | 250 | 210 | 184 | 100 | 628 | 14 | 18 | 2 | 6 | 8-M16 | 1/2″ |
| 150 | 57 | 285 | 240 | 211 | 125 | 780 | 14 | 23 | 2 | 6 | 8-M20 | 1/2″ |
| 200 | 70 | 340 | 295 | 266 | 125 | 880 | 18 | 23 | 4 | 8 | 12-M20 | 1/2″ |
Materials DNOVA GVKR3131M-1W-Fb-2P knife gate valves, body material - stainless steel AISI 304, knife material - stainless steel AISI 304, seal - metal, pneumatic actuator:
| № | Part name | Material |
| 1 | Body | SS304 stainless steel |
| 2 | Lining | EPDM |
| 3 | Steel ring | stainless steel SS304 |
| 4 | Schieber | stainless steel SS304 |
| 5 | Guide seal | PTFE |
| 6 | Packing | PTFE |
| 7 | Gland packing | SS304 stainless steel |
| 8 | Patron | WCB steel |
| 9 | Rod | 45+Cr steel |
| 10 | Rack | Q235 steel |
| 11 | Switch | - |
| 12 | Rack head | cast iron GGG40 |
| 13 | Pneumatic cylinder | - |
| 14 | Solenoid valve | - |
| 15 | Filter | - |
| 16 | Wedge | stainless steel SS304 |
- Body material
- Stainless steel AISI 304
- Stopper Material
- stainless steel AISI 304
- Maximum allowable temperature
- 500 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Gate valve type
- Knife Gate Valve
- Nominal pressure
- 16 bar
- Type of seal
- Metal
- 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