Product Description

Solenoid Valve Product Introduction & Technical Specifications

1. Product Introduction

A solenoid valve is a basic automation component that uses the electromagnetic force generated by an energized coil to control the on-off and direction change of fluids. It is an actuator widely used to adjust parameters such as the direction, flow rate, and speed of media in industrial control systems.

Its core components include the electromagnetic coil, iron core, valve body, spool, and return spring:

 When energized, the coil generates a magnetic field that attracts the iron core, driving the spool to move and change the flow path state.

 When de-energized, the spring pushes the spool back to its original position, restoring the initial flow path and achieving precise automatic control of the fluid.

2. Technical Specifications

 Nominal Diameter: DN1 DN500, commonly DN15/20/25/40/50 (determines maximum flow rate).

 Working Pressure: 0 35MPa; pilot-operated types require a minimum pressure difference of 0.050.1MPa.

 Media Temperature: -196 +450 (matched with seal/valve body materials; normal temperature 80, high temperature 450).

 Power Supply Voltage: AC220V/110V/24V; DC24V/12V/6V (common industrial voltages: DC24V, AC220V).

 Response Time: 10 500ms (time from energization to full operation; direct-acting types respond faster).

 Protection Grade: IP65 IP68 (dustproof and waterproof; IP67 allows short-term immersion, IP68 allows long-term underwater use).

 Explosion-proof Grade: ExdIICT6, ExiaIIBT4 (certified for hazardous areas; Exd flameproof, Exia intrinsically safe).

3. Main Component Materials

Valve Body Materials

 Brass: Easy to process, low cost, withstands medium pressure (16MPa), resistant to general corrosion. Suitable for water, air, light oil, and neutral media.

 Stainless Steel (304/316/316L): 304 resists wet/chemical corrosion; 316L resists strong acids/alkalis, high salinity, and high temperatures (450). Suitable for chemical, food, pharmaceutical, seawater, and steam applications.

 Engineering Plastics (PTFE/PVC/PVDF): PTFE resists strong corrosion, temperature range -50180; PVC/PVDF resist acids/alkalis and low pressure. Suitable for strong acids/alkalis, high-purity fluids, and semiconductor etching solutions.

 Aluminum Alloy: Lightweight, low cost, general strength. Suitable for low-pressure pneumatic systems and air media.

 Cast Steel / Cast Iron: High strength, extremely high pressure resistance (25MPa), requires anti-corrosion treatment. Suitable for high-pressure hydraulics, petroleum, and large-diameter steam applications.

Sealing Materials

 NBR (Nitrile Rubber): Oil-resistant, wear-resistant, -20120, suitable for water, oil, and air.

 FKM (Fluororubber): High and low temperature resistant (-20250), strong corrosion resistant, suitable for steam, acids/alkalis, and hot oil.

 EPDM (Ethylene Propylene Diene Monomer): Aging-resistant, hot water/steam resistant, -30150.

 PTFE (Polytetrafluoroethylene): Strong corrosion resistant, low friction, suitable for high-temperature and corrosive media.

Spool / Iron Core Materials

 Electromagnetic Stainless Steel (430FR): Good soft magnetic performance, corrosion-resistant, used for precise control.

 Bronze / Brass: Wear-resistant, magnetically conductive, general-purpose spool.

 POM / Nylon: Lightweight, corrosion-resistant, for low-pressure scenarios.

4. Product Features

 High Degree of Automation: Controlled by electrical signals (PLC/microcontroller), easy to network and remotely operate.

 Fast Response: Direct-acting types operate in milliseconds, suitable for emergency shut-off and high-frequency operation.

 Compact Structure: Small size and light weight, with low installation space requirements.

 Precise Control: Accurate on-off and direction change, enabling flow and pressure regulation when matched with the system.

 Energy-saving and Reliable: Self-holding types only consume power during pulses; no mechanical transmission results in low failure rate and long service life.

 Wide Applicability: Compatible with gas, liquid, steam, and corrosive media, covering high/low temperature, high/low pressure, and explosion-proof scenarios.