YOY A42Y-160 / A42Y-320 High Pressure Safety Valve

Introduction to YOY Safety Valve

The YOY A42Y Series Safety Valve is a high-pressure industrial safety valve designed according to Chinese National Standards. Featuring a closed spring-loaded mechanism and full bore discharge design, this valve provides reliable overpressure protection for pressure vessels, pipelines, compressors, and gas systems.

The A42Y series is widely used in compressed air, nitrogen (N₂), hydrogen (H₂), and other industrial gas applications where dependable pressure relief is required.

When system pressure exceeds the preset set pressure, the valve automatically opens to release excess pressure and closes once normal operating pressure is restored.

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Key Features of YOY A42Y Safety Valve

Full Bore Design

The full bore construction allows maximum discharge capacity during overpressure conditions, ensuring rapid pressure relief and system protection.

Closed Spring Construction

The spring is enclosed inside the bonnet, offering:

• Improved corrosion protection
• Longer service life
• Stable pressure setting performance
• Reduced environmental impact on spring operation

High Sealing Performance

The sealing surfaces are hard-faced with Stellite alloy, providing:

• Excellent wear resistance
• Superior corrosion resistance
• Long-term sealing reliability
• Reduced maintenance requirements

High Pressure Capability

Available in pressure ratings A42Y-160 and A42Y-320, suitable for demanding industrial applications requiring high-pressure protection.

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Technical Specifications

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Materials of Construction

A42Y-160 / A42Y-320

Suitable for general industrial gas applications.

Main materials include:

• Body: Carbon Steel
• Disc: 2Cr13 Stainless Steel
• Stem: 2Cr13 Stainless Steel
• Spring: 50CrVA Alloy Spring Steel

A42Y-160P / A42Y-320P

Suitable for mildly corrosive environments.

Main materials include:

• Body: Stainless Steel 304
• Disc: Stainless Steel 304
• Stem: Stainless Steel 304

A42Y-160R / A42Y-320R

Suitable for corrosive media and harsh operating environments.

Main materials include:

• Body: Stainless Steel 316
• Disc: Stainless Steel 316
• Stem: Stainless Steel 316

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Applications

The YOY A42Y Series Safety Valve is widely used in:

Compressed Air Systems

• Air compressors
• Air receivers
• Compressed air distribution networks

Industrial Gas Systems

• Nitrogen systems
• Hydrogen systems
• Oxygen-free gas systems
• Gas storage facilities

Chemical Plants

• Process pipelines
• Pressure vessels
• Gas processing units

Oil & Gas Industry

• High-pressure pipelines
• Separation vessels
• Gas treatment facilities

Power Generation Facilities

• Auxiliary gas systems
• Pressure protection systems
• Utility pipelines

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Benefits of Choosing YOY Safety Valve

✔ Reliable overpressure protection

✔ High discharge capacity

✔ Full bore full-lift design

✔ Excellent sealing performance

✔ Long service life

✔ Available in carbon steel, SS304, and SS316

✔ Competitive pricing

✔ Easy maintenance and installation

✔ Suitable for high-pressure industrial applications

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Why Choose THEGIOIVAN.NET?

THEGIOIVAN.NET is a trusted supplier of industrial valves in Vietnam, providing genuine YOY Safety Valves with technical support, pressure setting consultation, and fast quotation services.

Our experienced engineering team can assist customers in selecting the correct safety valve size, material, pressure rating, and set pressure according to project requirements.

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Contact Information

THEGIOIVAN.NET

Industrial Valve Specialist

📧 Email: info@pm-e.vn

☎ Hotline:

• +84 902 601 875
• +84 902 720 814
• +84 907 450 506
• +84 979 737 351

🌐 Website: THEGIOIVAN.NET