Safety Valves

A safety valve is a pressure relief device designed to automatically release excess pressure from a system to prevent equipment damage or explosions. It ensures safe operation in boilers, pipelines, and pressure vessels by maintaining pressure within safe limits.

Why Choose Safety Valves from ADYAA?

Reliability

Provides dependable overpressure protection to ensure the safety of equipment, personnel, and processes in all operating conditions.

Precision Performance

Accurately responds to pressure variations, offering consistent relief and maintaining system stability under critical situations.

Durability

Built with high-quality stainless steel and corrosion-resistant materials for superior performance in harsh and demanding environments.

Versatility

Available in a wide range of pressure ratings, sizes, and end connections to meet diverse industrial applications.

Safety & Compliance

Meets international standards such as ASME, API, and PED, guaranteeing safe and compliant operation in all pressure systems.

Safety Valves

Threaded Safety Valves

Size Range: ½” to 2” BSP/NPT (Male or Female) for easy installation across various system sizes.
Pressure Range: Factory set from 0.5 bar to 40 bar, customizable for specific process needs.
Temperature Range: Suitable for –40°C to +300°C, depending on body and seal materials.
Material Options: Available in SS316, SS304, Brass, or Carbon Steel with PTFE, NBR, or Viton seat options.
Design: Direct spring-loaded, pop-type construction ensuring quick, accurate, and repeatable pressure relief.
Standards & Approvals: Complies with ASME, API, and PED standards, ensuring reliability and global safety compliance.

Flanged Safety Valves

Size Range: 1” to 12” (DN25 to DN300)
Available in ANSI, DIN, or JIS flange standards for compatibility with global piping systems.
Pressure Range: 1 bar to 150 bar
Precisely factory-set for accurate overpressure protection across various pressure classes.
Temperature Range: –60°C to +450°C
Suitable for steam, gas, air, and process fluids depending on material and seal selection.
Body & Trim Materials: Carbon Steel, Stainless Steel (SS304 / SS316), or Alloy Steel with hardened trims for high-pressure endurance.
Design & Operation: Direct spring-loaded, full-lift or modulating type design ensuring stable discharge and quick reseating.
Connections & Standards: Flanged ends per ANSI B16.5 / DIN EN 1092-1, designed and tested in compliance with ASME Section VIII, API 526/527, and PED 2014/68/EU certifications.

Hygienic Service Safety Valves

Size Range: ½” to 4” (DN15 to DN100) with Tri-Clamp, DIN, or SMS connections.
Pressure Range: 0.5 bar to 25 bar, precisely factory set for hygienic applications.
Temperature Range: –20°C to +200°C, suitable for steam, air, and process fluids.
Material: AISI 316L stainless steel body with polished, crevice-free surfaces (Ra ≤ 0.8 µm).
Seal Options: EPDM, PTFE, Viton, or Silicone — all FDA-approved and CIP/SIP compatible.
Compliance: Meets 3-A, FDA, EHEDG, and PED standards for sanitary and safe operation.

Cryogenic Service Safety Valves

Size Range: ½” to 4” (DN15 to DN100) with threaded or flanged connections for cryogenic lines.
Pressure Range: 1 bar to 150 bar, designed for precise overpressure protection in low-temperature systems.
Temperature Range: –196°C to +80°C, suitable for liquid nitrogen, oxygen, argon, CO₂, and LNG applications.
Material: Stainless Steel (SS316 / SS304) or Bronze construction with extended bonnet design to prevent ice formation.
Seat & Seal Materials: PTFE, PCTFE, or soft-seat options ensuring tight shut-off at cryogenic temperatures.
Standards & Compliance: Conforms to ASME, API, and PED standards; cleaned and assembled for oxygen service (CGAspecification compliant).

Pilot Operated Safety Valves

Size Range: 1” to 12” (DN25 to DN300) with flanged or threaded connections.
Pressure Range: 2 bar to 400 bar, ideal for high-pressure gas, steam, and liquid systems.
Temperature Range: –60°C to +450°C depending on body and seal materials.
Material: Carbon Steel, Stainless Steel (SS304 / SS316), or Alloy Steel for heavy-duty applications.
Design: Pilot-operated mechanism ensures stable operation, tight sealing, and minimal leakage under varying pressures.
Standards & Certifications: Complies with ASME Section VIII, API 520/526/527, and PED 2014/68/EU for global safety compliance.

Key Features

Accurate Pressure Control – Designed to open precisely at the set pressure to prevent system overpressure.
Reliable Performance – Built for consistent operation even under harsh or fluctuating process conditions.
Corrosion-Resistant Materials – Manufactured using stainless steel, brass, or alloy steels for long service life.
Leak-Tight Sealing – Ensures tight shut-off and prevents loss of process media after pressure relief.
Wide Pressure Range – Available in various pressure settings to suit low, medium, and high-pressure systems.
Quick Response Mechanism – Instant pressure release to protect equipment and personnel from potential hazards.
Compact & Robust Design – Space-saving, durable construction suitable for both indoor and outdoor installations.
Easy Maintenance – Simple to inspect, clean, and reset for continued reliable performance.
Compliant with Industry Standards – Engineered and tested as per international safety codes and certifications.

Industrial Applications:

Oil & Gas: Protecting critical equipment such as pipelines, separators, and storage tanks from pressure buildup.
Chemical & Petrochemical: Delivering safe and reliable pressure control across reactors, columns, and process lines.
Power & Energy: Providing dependable overpressure protection for boilers, turbines, and steam systems.
Pharmaceutical & Food Processing: Ensuring clean and compliant pressure relief for sanitary and hygienic applications.
Water & Wastewater: Offering safety relief solutions for filtration, pumping, and treatment installations.
HVAC & Refrigeration: Preventing excess pressure in compressors, chillers, and closed-loop systems.