The Diaphragm Type Electrical Remote Control Valve controls opening and closing via a solenoid pilot valve, supporting remote operation and allowing for smooth closing by adjusting the closing speed. Depending on its purpose, function, and application, it can be configured as a remote-controlled float valve, pressure reducing valve, slow-closing check valve, flow control valve, pressure relief valve, hydraulic electric control valve, and pump control valve. It is suitable for water supply and drainage systems, high-rise building water supply networks, and urban water supply projects.
Core Structure and Working Principle
Drive Mechanism
Comprising a main valve (including valve body, valve stem, and diaphragm) and external control components (solenoid pilot valve, needle valve, and filter), the valve opening and closing is controlled by electrical signals or manual operation.
Hydraulic self-control design utilizes media pressure to drive diaphragm movement, requiring no external lubrication and simplifying maintenance.
Sealing Technology
Diaphragm Seal: Employs an NBR rubber + fabric composite diaphragm to isolate the media from the valve stem components, achieving zero leakage (leakage rate ≤ 0.5% × valve rated capacity).
Multiple Material Compatibility: Valve body options include cast iron (WCB)/stainless steel (CF8M), resistant to corrosive media (pH 0~14).
Key Performance Parameters
| Parameter Item | Technical Specifications | Applicable Scenarios |
| Nominal Pressure | 1.0/1.6/2.5/4.0 MPa | Select rating based on pipeline working pressure |
| Medium Temperature | 0~80℃ (Conventional) | Domestic water supply/fire protection system |
| Response Speed | Solenoid valve control, response time ≤0.05 seconds | requiring rapid shut-off in scenarios |
| Sealing Life | Diaphragm fatigue resistance ≥20,000 opening and closing cycles | High-frequency operating environment |
Core Application Scenarios
Fire Protection - Domestic Water Supply Switching
Fire Emergency: Automatically shuts off domestic water supply to ensure fire water pressure; restores domestic water supply after a fire.
Technical Highlights: Three-way solenoid valve control + spring-loaded buffer closure (for water hammer prevention).
Industrial Flow Control
Chemical Industry: Regulates the flow rate of high-viscosity/particulate media; PTFE-lined valve disc is resistant to strong corrosion.
Precision Control: Supports 4-20mA signal input, adjustment accuracy ±3.5%.
Diaphragm Type Electrical Remote Control Valve Factory
