Pneumatic Valves

Jingyan Hydraulics supplies a range of compact and cartridge-type hydraulic valves designed for standardized applications where space efficiency, reliability, and ease of integration are required.

Product Overview

High pressure pneumatic valves are designed for industrial applications, free of aluminium. With a maximum working pressure of 30 bar, these pneumatic valves are optimized for harsh and explosion-prone environments, including coal mining and heavy industrial systems.

JYHE has developed a patented cartridge pneumatic valve design, significantly improving system safety, compactness and operational reliability.

Structural Configuration

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Line-Mounted Type

Traditional pneumatic valve structure connected via external piping. Simple installation, suitable for applications with sufficient space.

Subplate-Mounted Type

Mounted on standardized subplates. Allows convenient installation and maintenance in industrial control systems.

Sandwich-Type

Stackable modular design between valve sections. Enables functional expansion without additional piping.

Cartridge-Type

Integrated directly into manifolds or valve blocks. Ideal for compact and highly integrated control applications. Less common due to higher design and manufacturing requirements.

Operating and Actuation Options

To match different control philosophies and system architectures, JYHE pneumatic valves are available with multiple actuation options. Each actuation mechanism is designed to maintain reliable performance under high pressure operating conditions.

Pneumatic/Hydraulic pilot actuation

for remote and automatic control systems

Solenoid actuation

for PLC-controlled and automated installations

Manual actuation

for commissioning, maintenance and emergency operation

Machine operation

Integrated directly into manifolds or valve blocks. Ideal for compact and highly integrated control applications. Less common due to higher design and manufacturing requirements.

High Pressure up to 30 Bar

High pressure pneumatic systems impose strict requirements on valve body strength and dimensional stability. JYHE pneumatic valves are engineered specifically for working pressures up to 30 bar, ensuring safe and stable operation even under pressure fluctuations and frequent switching cycles.

Carbon Steel Body with QPQ Surface Treatment

Unlike many pneumatic valves on the market that use aluminum alloy bodies, JYHE pneumatic valves are manufactured from high-strength carbon steel. This material choice provides superior pressure resistance and long-term structural integrity.

QPQ surface treatment further enhances corrosion resistance and wear performance, making the valves suitable for humid, dusty and corrosive industrial environments.

Cartridge Design and Internal Structure

The sectional structure of pneumatic valves demonstrates a compact cartridge-based design. Key control, sealing and pilot elements are integrated into the valve body, reducing external pneumatic piping and minimizing potential leakage points.

Compared with conventional pneumatic valves that rely on complex external tubing, the cartridge design improves system integrity, enhances safety and simplifies installation in confined or vibration-prone environments. This structural design has been granted a Chinese patent.

Suitable for Explosion-Proof and Harsh Environments

The robust material selection and integrated structure make JYHE pneumatic valves suitable for applications with strict safety and explosion-proof requirements, including underground mining and heavy industrial machinery.

Typical Applications

High pressure pneumatic control systems
Coal mining and underground equipment
Explosion-proof and safety-critical installations
Harsh industrial environments with dust and moisture.