


Electric PTFE-Lined Wafer Butterfly Valve: VK-20WPL
Electric PTFE-Lined Flanged Butterfly Valve: VK-20FPL
Electric PTFE-Lined Lugged Butterfly Valve: VK-20LPL
Electric PTFE-lined butterfly valves are designed for automated isolation and general throttling of corrosive process media. The PTFE lining creates a corrosion-resistant barrier between the process fluid and the valve body, allowing the valve to be selected for compatible acids, alkalis, solvents, and other chemical solutions where unlined metal valves may be unsuitable.
The series is available in wafer, lugged, and flanged body designs to match different piping arrangements. Wafer versions provide a compact installation option between mating pipe flanges. Lugged versions use threaded mounting lugs, allowing each pipeline flange to be bolted to the valve body separately. Flanged versions provide integral flange connections for permanent process pipelines where a conventional bolted installation is preferred.
PTFE is used for the sealing and disc configuration to support corrosion resistance throughout the valve flow path. Carbon steel and stainless steel body options with PTFE lining allow the valve construction to be selected according to the external operating environment and project material requirements.
The valve can be equipped with ON/OFF, modulating, or intelligent electric actuators for remote open-close operation, adjustable disc positioning, and local status monitoring. Electric PTFE-lined butterfly valves are commonly used in chemical transfer systems, acid and alkali handling lines, wastewater treatment, electroplating equipment, chemical dosing systems, and other corrosive fluid applications.
Size Range: DN50 to DN400 (2″ to 16″)
Max. Allowable Operating Pressure: 16 bar
Temperature Range: -20°C to 150°C
Valve Body Materials (with PTFE lined): Carbon Steel / SS304 (CF8) / SS316(CF8M) / SS316L (CF3M)
Butterfly Disc Materials: PTFE / SS304 (CF8) / SS316(CF8M) / SS316L (CF3M)
End Connections: Wafer / Lugged / Flanged
Connection Standard: GB / DIN / ASME(ANSI) /JIS
OEM Support: Yes
| Actuator Type | On/Off Type | Modulating Type | Intelligent Type | |
| Product Model | VK | VR | VI | |
| Voltage | 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 | |||
| Temperature Range | -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. | ||||
| Connection Standard | GB / DIN / ASME(ANSI) /JIS | |||
| Size Range | DN50 to DN400 (2″ to 16″) | |||
| End Connections | Wafer / Lugged / Flanged | |||
| Max. Allowable Operating Pressure | 16 bar | |||
| Seat Material | PTFE | |||
| Temperature Range | -20°C to 150°C | |||
| Valve Body Materials (with PTFE lined) | Carbon Steel / SS304 (CF8) / SS316(CF8M) / SS316L (CF3M) | |||
| Butterfly Disc Materials | PTFE / SS304 (CF8) / SS316(CF8M) / SS316L (CF3M) | |||
| *Custom specifications are available | ||||
We provide high-quality valves at competitive prices. Our excellent value significantly reduces your procurement costs compared to international brands while delivering dependable performance for your projects.
You receive quotes for standard items within 24 hours, projects within 48 hours. As your reliable valve supplier, we prioritize timely delivery. Standard valves ship in 7-10 workdays; custom orders ship in 15-30 days, helping keep your project schedules on track.
We have no minimum order quantity requirements. This provides flexibility for your smaller needs, prototypes, or urgent replacement orders, allowing you convenient, one-stop purchasing.
We assist with shipping and logistics, familiar with international export processes. This support helps simplify arranging freight for your orders, including understanding needs like special product marking for various markets.