Description
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 PN10 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 | А |
| 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 PN10 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ
Dimensions and dimensions of gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN10 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ:
| Size | DN125 | DN150 | DN200 | DN250 |
| DN, mm | 125 | 150 | 200 | 250 |
| L, mm | 57 | 57 | 70 | 70 |
| D, mm | 250 | 285 | 340 | 395 |
| D1, mm | 210 | 240 | 295 | 350 |
| D2, mm | 181 | 211 | 266 | 319 |
| H1 | 628 | 780 | 880 | 1088 |
| G, inch | 1/2″ | 1/2″ | 1/2″ | 3/4″ |
| N - Th | 8 – M16 | 8 – M20 | 8 – M20 | 12 – M20 |
| T, mm | 14 | 14 | 18 | 18 |
| Ød, mm | 18 | 23 | 23 | 23 |
| ⬤, mm | 2 | 2 | 2 | 4 |
| 〇, mm | 6 | 6 | 6 | 8 |
| Weight, kg | 16 | 23 | 31 | 51 |
Sketch dimensions and dimensions Gate valves DNOVA GVKR1331E-1W-Fb-2P-WENZ PN10 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 PN10 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 PN10 unidirectional, interflanged, spindle - extendable, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, pneumatically actuated, WENZ
Main technical characteristics of pneumatic cylinders SC 100x155 - SC 160x280:
| Gate valve DN | DN125 | DN150 | DN200 | DN250 |
| Pneumatic cylinder model | SC 100x155 | SC 125x180 | SC 125x230 | SC 160x280 |
| Main characteristics of pneumatic cylinders | ||||
| Pneumatic cylinder model | SC 100x155 | SC 125x180 | SC 125x230 | SC 160x280 |
| 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 |
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| 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 | 50 - 800 | |||
| Piston diameter, mm | 100 | 125 | 125 | 160 |
| Stroke, mm | 155 | 180 | 230 | 280 |
| Stroke diameter, mm | 25 | 32 | 32 | 40 |
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
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