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Direct Acting Diaphragm Type Solenoid Valves-2W21 Stainless Steel or Brass

The  direct acting diaphragm solenoid valve is a solenoid valve specifically designed for use in low-pressure systems. It is popular for its high efficiency, stability and adaptability, and is widely used in a variety of low-pressure fluid control systems.
The solenoid valve adopts a straight-pull diaphragm design, which opens and closes the valve by pulling the diaphragm directly, simplifying the structure and improving response speed and reliability. In addition, the solenoid valve can be actuated without initial pressure, making it ideal for low-pressure or unpressurized system applications.
It is suitable for a wide range of media, including water, oil, air, gas, etc. , commonly used in air conditioning and refrigeration series, water treatment systems. Gas pipeline series, industrial automation equipment and other industrial and civil scenarios.

  • Model: 2W21
  • Size Range: 1/2”~2”
  • Pressure Range: 0-1.0 MPa
  • Material: Stainless steel 304/316 or Brass

Features

  • Flexible Configurations: Provides both normally open and normally closed configuration options to flexibly adapt to different operational needs and system settings.

  •  Fast response: With an opening pressure of 0 bar and high flow characteristics, the valves are suitable for applications that require fast response and large amounts of liquid passage.

  •  Reliability: High-frequency direct lift diaphragm construction ensures reliable valve operation and durability, designed to withstand frequent use in a variety of industrial applications.

  • Multiple Material Options: Manufactured in brass or stainless steel to meet specific application requirements, ensuring compatibility with a wide range of fluid types and environmental conditions.

  • Optimized for low pressure: Designed specifically for low-pressure systems to optimize performance in environments where effective flow control at low pressures needs to be maintained.

Solenoid Valves

Working Principles:

Solenoid valves control the movement of the spool through electromagnetic force, thus opening or closing the fluid passage. When the solenoid valve is energized, the electromagnetic coil generates a magnetic field, which causes the spool to be attracted or pushed, changing the state of the valve. The movement of the spool is realized by a direct drive or an indirect drive mechanism (e.g., diaphragm or piston). When the valve is closed, the spool blocks the fluid passage; when it is open, the spool moves away, allowing the fluid to pass.

Direct Acting Diaphragm Type Solenoid Valves technical Parameter

Pressure: 0-1.0 MPa (10 bar) Orifice(mm): 15、20、25、32、40、50
Warranty: 12 Moths Voltage: DC-12V、24V;AC-24V、120V、240V/60Hz;110V、220V/50Hz
Port Size: 1/2”~2”  Function: Normally Closed / Normally Open
Temperature of media: -10~100℃(14℉ to 212℉) Suitable Media: Water, gas, oil, etc

Applications:

Direct acting diaphragm solenoid valve are widely used in a variety of industries, including:

  • Industrial applications: Used in industrial automation control systems, such as air compressors, hydraulic systems and other mechanical equipment fluid control, to ensure the normal operation of the equipment.

  • Civilian applications: For controlling safety valves in gas supply systems, such as domestic gas stoves and water heaters, in homes and commercial buildings.

  • Water treatment and irrigation: For fluid control in water treatment equipment and irrigation systems, to ensure the effective use of water resources and the stable operation of equipment.

  • Environmental protection: In environmental monitoring and control, it is used for gas and liquid flow control to maintain environmental quality and safety.

  • Oil and fuel applications: For fluid control in oil circuit systems in the petroleum industry, such as oil flow control in gas stations and lubricant circuit control in industrial equipment.

Conclusion:

Direct acting diaphragm solenoid valve  is easy and safe to operate, with automation control function and diversified application scene configuration. It is widely used in air, city gas, water, oil, petroleum and environmental protection and other fields, can meet the industrial, civil and environmental protection and other fluid control needs.

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