Electric adjustable knife type gate valve

Electric adjustable knife gate valve is a fluid control device that combines electric actuator and knife gate structure, suitable for industrial scenarios that require precise flow regulation. The following is its core information:

1、 Structure and Working Principle
Core components
Gate design: Adopting a knife shaped gate, it can cut off impurities such as fibers and particles, and the sealing surface can be made of hard alloy or polyurethane material.
Electric actuator: By driving the valve stem with a motor, the gate can be raised and lowered, supporting 4-20mA signal or switch control, and the adjustment accuracy can reach ± 1%.
Adjustment mechanism
By receiving external control signals (such as PLC commands) through electric actuators, the gate opening is adjusted to achieve linear flow control.
2、 Performance characteristics
High sealing performance: Bidirectional metal hard seal or elastic seal (such as O-ring), leakage level meets ANSI/FCI standards.
Wear resistant and corrosion-resistant: The gate and valve seat are made of stainless steel (304/316) or ceramic coating, suitable for high wear media such as slurry and pulp.
Quick response: The opening and closing time of the electric actuator is adjustable (usually 5-30 seconds) and supports frequent operation.
3、 Technical parameters
Diameter range: DN50~DN1200, customizable for special needs.
Pressure rating: PN6~PN25 (national standard), ANSI 150LB (American standard).
Applicable temperature: -20 ℃~+350 ℃ (hard seal), -40 ℃~+200 ℃ (soft seal).