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Our Relief Valves
Our high-performance relief valves are built to prevent system damage by automatically releasing excess pressure with precision and reliability.
Category: Pressure Relief Valve, Vent Relief Valve
Configurations: NPT, SAE, BSPT
Materials: Brass, Aluminum, Stainless Steel
Max Pressure: 200 PSI
Crack Pressure: 1-150 PSI
design: Compact, Highly Accurate, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Category: Inline Relief Valve
Configurations: NPT, SAE, BSPT
Materials: Brass, Aluminum, Stainless Steel
Max Pressure: 200 PSI
Crack Pressure: 1-150 PSI
Design: Compact, Highly Accurate, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Category: High Pressure Relief Valve
Configurations: NPT, SAE
Materials: Brass, Stainless Steel
Max Pressure: 600 PSI
Crack Pressure: 150-500 PSI
Design: Compact, Highly Accurate, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Category: High Pressure Relief Valve, Inline Relief Valve
Configurations: NPT
Materials: Brass, Stainless Steel
Max Pressure: 3600 PSI
Crack Pressure: 10-2400 PSI
Design: Positive Seat, High Pressure, Zero Leakage, Tamper Proof Adjustment, 100% Leak Tested
Category: Pressure Relief Valve, Vent Relief Valve, Safety Valve
Configurations: NPT
Materials: Brass
Crack Pressure: 80-225 psi (5 PSI increments)
Design: ASME, CRN, NB, UV Stamped, Zero Leakage, Low Profile Design
Category: Pressure Relief Valve, Vent Relief Valve, Safety Valve
Configurations: NPT
Materials: Brass, Stainless Steel
Crack Pressure: 25-350 psi (5 PSI increments)
Design: Economical, Zero Leakage, Low Profile Design
Category: Pressure Relief Valve, Vent Relief Valve, Safety Valve
Configurations: NPT, SAE
Materials: Brass, Stainless Steel
Crack Pressure: 1-20
Design: Economical, Plastic Poppets
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.
Example Sales Print
See how a simple concept becomes a precision-engineered solution—view our example sales print.
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.
Even from a napkin sketch
Our Process
At Valve Check, we specialize in turning ideas into reality. Whether it starts as a quick sketch on a napkin or a rough concept drawing, our team has the expertise to transform it into a fully engineered, tested, and manufactured valve.
We work closely with you at every stage—from concept and design, to prototyping, precision machining, and final assembly. Our engineers combine decades of experience with advanced CAD modeling, state-of-the-art manufacturing technology, and rigorous quality control to ensure the finished valve meets exact specifications and industry standards.
No matter how simple or complex your idea, we can bring it to life. If you can imagine it, we can build it.
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:
01
Hydraulic Circuits
Relief valves protect hydraulic components from pressure spikes by releasing excess fluid when system limits are exceeded.
02
Compressed Air Systems
They prevent damage to compressors, air tools, and piping by ensuring safe venting of over pressurized air.
03
Water Treatment Equipment
Used in filtration and pumping systems to maintain consistent pressure and avoid system failure due to blockages or flow interruptions.
04
Chemical Processing Lines
Safely manage volatile or high-pressure fluids by automatically relieving pressure to protect workers and equipment.
05
OEM and Custom Equipment Builds
Integrated into custom machinery where precise, compact, and dependable overpressure protection is required.