Overpressure Protection You Can Rely On

Our Relief Valves

Our high-performance relief valves are built to prevent system damage by automatically releasing excess pressure with precision and reliability.

200 SERIES

Category: Pressure Relief Valve, Vent Relief Valve
Design: Compact, Highly Accurate, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Configurations: NPT, SAE, BSPT
Materials: Brass, Aluminum, Stainless Steel
Max Pressure: 200 psi
Crack Pressure: 1-150 psi

200MP SERIES

Category: Inline Relief Valve
Design: Compact, Highly Accurate, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Configurations: NPT, SAE, BSPT
Materials: Brass, Aluminum, Stainless Steel
Max Pressure: 200 psi
Crack Pressure: 1-150 psi

HP200 SERIES

Category: High Pressure Relief Valve
Design: Compact, Highly Accurate, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Configurations: NPT, SAE
Materials: Brass, Stainless Steel
Max Pressure: 600 psi
Crack Pressure: 150-500 psi

2300 SERIES

Category: High Pressure Relief Valve, Inline Relief Valve
Design: Positive Seat, High Pressure, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Configurations: NPT
Materials: Brass, Stainless Steel
Max Pressure: 3600 psi
Crack Pressure: 10-2400 psi

CODE RELIEF VALVES

Category: Pressure Relief Valve, Vent Relief Valve, Safety Valve
Design: ASME, CRN, NB, UV Stamped, Zero Leakage, Low Profile Design
Configurations: NPT
Materials: Brass
Crack Pressure: 80-225 psi, 5 psi increments

NON-CODE RELIEF VALVES

Category: Pressure Relief Valve, Vent Relief Valve, Safety Valve
Design: Economical, Zero Leakage, Low Profile Design
Configurations: NPT
Materials: Brass, Stainless Steel
Crack Pressure: 25-350 psi, 5 psi increments

Protect Your Hydraulic and Pneumatic Systems

High-Performance Relief Valves

Looking for a reliable relief valve to protect your system from overpressure? Our precision-engineered relief valves are trusted by engineers and OEMs across industries for dependable performance, tight resealing, and long service life.

Available in multiple materials and configurations, our valves are ideal for hydraulic systems, air compressors, fluid handling equipment, and industrial machinery.

a 3D render of a few relief valves from Valve Check Inc

Key Features of Our Relief Valves:

Max pressure ratings up to 3,000 PSI
Crack pressures from 0.5 to 2,400 PSI
Available in brass, stainless steel, and aluminum, and more
NPT thread and custom port options
Compact, space-saving designs
Lead-free and NSF-certified options available
Manufactured in the USA for quality assurance

Design Your Solution

Whether you need a low-pressure relief valve or a high-pressure relief valve, we provide the durability and precision you can count on. Our valves are thoroughly tested to meet demanding safety standards and ensure consistent pressure relief when it matters most.

Common Applications

Our relief valves are used in a variety of pressure-sensitive systems where reliability and performance are critical. Here’s how they serve in different environments:

Hydraulic Circuits

Relief valves protect hydraulic components from pressure spikes by releasing excess fluid when system limits are exceeded.

Compressed Air Systems

They prevent damage to compressors, air tools, and piping by ensuring safe venting of over pressurized air.

Water Treatment Equipment

Used in filtration and pumping systems to maintain consistent pressure and avoid system failure due to blockages or flow interruptions.

Chemical Processing Lines

Safely manage volatile or high-pressure fluids by automatically relieving pressure to protect workers and equipment.

OEM and Custom Equipment Builds

Integrated into custom machinery where precise, compact, and dependable overpressure protection is required.