Introduction

A pilot-operated explosion-proof solenoid valve is a device that controls the switching of the main valve through an electromagnetically driven pilot air path, used to control the reversing and opening/closing of pneumatic actuators.

Specification

Air pressure: 2~8bar

Power voltage range：12/24/48VDC,110/220/240VAC

Control state: Single electric control, double electric control

Valve type：3/2 way &5/2 way

Port connection size: G1/4, G1/2

Ambient temperature: -20~70℃

Material: Aluminum alloy or stainless steel

Lifetime: One million times
Both direct connection and pipe connection are fitted.

Simply change between 3/2 and 5/2 with a plug (connection plate isn't needed);

Two inlet holes for flexible installation;

Material: Aluminum alloy, stainless Steel 316

General Type: Explosion-proof Type, Intrinsic safe Type, Pouring Type.

Features

Safety: Offers explosion-proof, intrinsically safe, and potted structures to meet the requirements of electrical equipment in hazardous areas, allowing direct installation of the valve body in explosion-proof environments.

Low Cost: Switches between 3/2 and 5/2 valve types via plug-in connection, eliminating the need to replace connecting plates or the entire valve. Offers single- and dual-electric control options to reduce inventory for different control needs.

Low Maintenance: The valve body is designed for a lifespan of 1 million cycles. Combined with aluminum alloy or stainless steel (including 316) materials and low-friction moving parts, it reduces replacement frequency.

Applications

Oil and Gas Industry: Used to control the air path switching of pneumatic actuators, enabling remote valve opening and closing and interlocking control.

Chemical Industry: Used in automated control systems to control the movement of pneumatic components via electrical signals, achieving process flow switching.

Power Industry: Used in auxiliary pneumatic systems to realize equipment start-up and shutdown and control signal conversion.

Explosion-Proof Industrial Environments: Used in areas containing flammable gases or dust to control the operation of pneumatic systems and meet explosion-proof requirements.

FAQ

Q: How to choose between 3/2 and 5/2 valve types?

A: 3/2 valves are suitable for single-acting actuator control (with spring return); 5/2 valves are suitable for double-acting actuators, achieving forward and reverse drive through switching between two air sources.

Q: What are the air source requirements for pilot-operated solenoid valves?

A: The air source pressure must be within the range of 2–8 bar, and the air must be filtered and dried to prevent impurities or moisture from entering the pilot channel and affecting the switching action.

Q: How to choose the explosion-proof type?

A: Select the explosion-proof type according to the hazard level of the site: flameproof type is suitable for conventional explosion-proof environments, intrinsically safe type is suitable for applications with energy limitation requirements, and potted type is suitable for applications with special requirements for the sealing structure.

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