
VK-20W
Electric wafer butterfly valves combine a resilient-seated wafer butterfly valve with a quarter-turn electric actuator for automated isolation and disc-positioning duties in industrial piping systems. The valve is installed between mating pipe flanges, providing a compact and lightweight alternative to conventional flanged butterfly valves where installation space, pipeline weight, and overall cost need to be controlled.
The wafer body design has a short face-to-face dimension and requires less space than a double-flanged valve. This makes it suitable for large-diameter pipelines, skid-mounted equipment, HVAC systems, water treatment units, utility lines, and other installations where a compact valve arrangement is required.
A range of body, disc, and seat materials is available to match the process medium and operating conditions. Resilient seat options can be selected for water, air, non-aggressive chemicals, and other media compatible with the chosen elastomer or PTFE sealing material. Stainless steel and nickel aluminum bronze disc options can also be specified where improved corrosion resistance is required.
The valve can be supplied with ON/OFF, modulating, or intelligent electric actuators. ON/OFF actuators are suitable for remote open-close operation, while modulating versions allow controlled adjustment of the disc position for throttling applications. Intelligent actuator versions can provide local status indication and parameter setting where additional control and monitoring are required.
Electric wafer butterfly valves are commonly used in water and wastewater treatment, HVAC and building services, industrial utility systems, chemical process lines, power and energy projects, and general fluid-handling applications requiring automated butterfly valve operation.
Size Range: DN32 to DN1400
Max. Allowable Operating Pressure: 16 bar
Temperature Range: -20°C to 150°C
Valve Materials: Cast Iron / Carbon Steel / SS304 (CF8) / SS316(CF8M) / SS316L (CF3M)
Butterfly Disc Materials: SS304 (CF8) / SS316(CF8M) / SS316L (CF3M) / Nickel Aluminum Bronze
End Connection Type: Wafer
Connection Standard: GB / DIN / ASME(ANSI) /JIS
Support OEM : Oui
| Actuator Type | On/Off Type | Modulating Type | Intelligent Type | |
| Modèle de produit | VK | VR | VI | |
| Tension | 12V/24V DC; 24V/110V/220V/380V AC | |||
| Actuator Rotation | 90 Degrees | 0 to 90 Degrees | 0 to 90 Degrees | |
| Input/Output Signals | dry contact signal, passive contact signal | 4-20mA, 1-5V DC, 0-10V DC | ||
| Open/Close time(0-90°) | 20 to 100 S | |||
| Torque Range | 50 Nm to 4,000 Nm | |||
| Plage de températures | -30°C to 60°C | |||
| Protection Level | IP65 / IP67 | |||
| Features | For 90-degrees fully open/fully close | Adjust the opening/closing angle via the adjustment module | Add a LCD display screen to the Modulating Type based on its original configuration | |
| *Optional: Compact, waterproof, multi-turn, or explosion-proof electric actuators | ||||
| Compatible Mating Flange Standards | GB / DIN / ASME(ANSI) /JIS | |||
| Gamme de tailles | DN32 to DN1400 | |||
| End Connection | Wafer | |||
| Max. Allowable Operating Pressure | 16 bar | |||
| Seat Materials | NBR | EPDM | Viton | PTFE |
| Plage de températures | -10 °C à 80 °C | -5°C to 100°C | -10°C à 120°C | -20°C to 150°C |
| Valve Body Materials | Cast Iron / Carbon Steel / SS304 (CF8) / SS316(CF8M) / SS316L (CF3M) | |||
| Butterfly Disc Materials | SS304 (CF8) / SS316(CF8M) / SS316L (CF3M) / Nickel Aluminum Bronze | |||
| *Custom specifications are available | ||||
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