Relief Valves

Relief Valves

Our Relief Valves are precision-engineered safety devices designed to automatically release excess pressure from fluid systems, protecting equipment and personnel from overpressure hazards. Ideal for use in compressed air, steam, gas, hydraulic, and liquid systems, these valves ensure operational safety by maintaining system pressure within safe limits. Manufactured from high-grade stainless steel, brass, or carbon steel, and available in a range of pressure ratings and configurations, Metalok Relief Valves comply with global standards for performance and safety across industries including oil & gas, power generation, chemical, and process industries.

  • Automatic Pressure Release Mechanism
    Opens at pre-set pressure to prevent overpressure damage.
  • Corrosion-Resistant Materials 
    Available in SS 316, SS 304, Brass, and more for extended durability.
  • Compact, Robust Design
    Built for space efficiency and high mechanical strength.
  • Multiple Pressure Settings 
    Available in adjustable and fixed-pressure variants.
  • Compliance with Standards
     Conforms to ASME, API, and other international safety codes.
  • Ensures System Safety
    Prevents accidents, equipment failure, and downtime caused by pressure surges.
  • Minimizes Maintenance Costs 
    Reduces wear and damage to other system components.
  • Reliable Operation 
    Delivers consistent performance even under fluctuating or extreme conditions.
  • Easy Integration 
    Suitable for inline, panel, or manifold mounting across various systems.
  • Versatile Applications
    Used across air, liquid, gas, and hydraulic systems in multiple industries.
Sr. No.Part DescriptionMaterial
1Valve BodySS316
2Valve InsertSS316
3Seat SealViton
4Clamp ScrewSS316
5Valve PoppetSS316
6Retainer RingSS316
7Stem SealViton
8Bonnet ‘O’ RingViton
9Valve BonnetSS316
10Spring Support DiscSS316
11SpringStainless Steel
12Lock NutSS316
13Adjustment CapSS316
14Cap PlugBrass
Connection Size InletConnection Size OutletOrifice (mm)A (mm)B (mm)C (mm)
1/4″ ODT1/4″ ODT3.610536.640.7
1/4″ Male NPT1/4″ ODT3.698.530.240.7
1/4″ Male NPT1/4″ Female NPT3.698.530.229.7
1/4″ Male BSPT1/4″ Female BSPT3.698.530.229.7
6mm ODT6mm ODT3.610536.640.7
8mm ODT8mm ODT3.610536.640.7