How it works
Double-acting linear cylinder
Knife gate
The number that matters
Nominal pressure
6bar
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
- Industrial Water
- Water Supply
- Heat Supply
- Industry
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.
Technical characteristics of gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN6 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ:
| Parameters | Values |
| Nominal diameter DN, mm | 50-300 |
| Nominal pressure PN, bar | DN50÷100 - 16 DN125÷250 - 10 DN300 - 6 |
| Working medium temperature, °C | -30 to +110 |
| Working medium | water, slightly contaminated liquids with the content of suspended solids up to 5% |
| Tightness class | A |
| Control type | pneumatic cylinder |
| Connection to pipeline | interflanged |
| Body material | cast iron GGG40 (analog BCh40) |
| Application | water treatment and sewerage systems, engineering networks (except drinking water supply systems) |
| Service life, years | 10 |
Gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN6 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ
| Size | DN300 |
| DN, mm | 300 |
| L, mm | 76 |
| D, mm | 445 |
| D1, mm | 400 |
| D2, mm | 370 |
| H1 | 1232 |
| G, inch | 3/4″ |
| N - Th | 12 – M20 |
| T, mm | 20 |
| Ød, mm | 23 |
| ⬤, mm | 6 |
| 〇, mm | 6 |
| Weight, kg | 70 |
Sketch dimensions and dimensions Gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN6 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ
Table of parts and materials for gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN6 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ:
| № | Part name | Material |
| 1 | Body | cast iron GGG40 |
| 2 | Seal | EPDM |
| 3 | Ring | stainless steel AISI/SS 304 |
| 4 | Schieber | stainless steel AISI/SS 304 |
| 5 | Guide seal | PTFE |
| 6 | Gland packing | PTFE |
| 7 | Seal | WCB steel |
| 8 | Cartridge | WCB steel |
| 9 | Pneumatic cylinder rod | 45+Cr steel |
| 10 | Rack | Q235 steel |
| 11 | Switch | - |
| 12 | Rack head | cast iron GGG40 |
| 13 | Pneumatic cylinder | - |
| 14 | Solenoid | - |
| 15 | Filter | - |
| 16 | Wedge | cast iron GGG40 |
Sketch of parts and materials of slide gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN6 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ
Main technical characteristics of SC 160x330 pneumatic cylinders:
| Gate valve DN | DN300 |
| Pneumatic cylinder model | SC 160x330 |
| Main characteristics of pneumatic cylinders | |
| Action type | double action |
| Operating medium | compressed air: - at ambient air temperature from +5°C to +50°C dew point 10°C lower than the ambient temperature; - at temperatures below +5°C the dew point is 5°C lower than the ambient temperature. ambient temperature |
| Mounting type | FA FB CA CB LB YB |
| Damping | adjustable |
| Working pressure range, bar | 1-9 |
| Maximum allowable pressure, bar | 13,5 |
| Operating temperature range, °C | -5 ÷ 70 |
| Speed range, mm/s | 20 - 300 |
| Piston diameter, mm | 160 |
| Stroke, mm | 330 |
| Stroke diameter, mm | 40 |
- Body material
- Cast iron GGG40
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Operating environment
- Water and Industrial Water
- Applications
- Water Supply, Heat Supply, and Industry
- Nominal pressure
- 6 bar
- Type of seal
- EPDM
- Locking material
- Stainless steel AISI 304
- Explosion-proof
- No
- Limit switches
- No
- Type of pneumatic actuator
- double action
- 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.