Pressure relief valves are integral components of any high-pressure system, engineered to ensure safety and optimal performance by mitigating excess pressure buildup.
The emergency release valves, also known as safety valves, come equipped with a cutting-edge self-reset function, ingeniously designed to automatically discharge excess pressure when it surpasses the pre-determined threshold. Featuring a sophisticated spring-loaded ball and seat release mechanism, these valves safeguard both personnel and high-pressure systems. The adjustable release pressure, ranging from 14MPa to a formidable 140MPa, is fine-tuned with precision via a top adjustment bolt. Ideal for integration into high-pressure fluid control lines, reciprocal plunger pumps, or pressure vessels with working pressures reaching up to 105MPa or 140MPa, these valves excel in reliability. Once the system pressure exceeds the preset value, the valve swiftly opens, and as the pressure subsides, it gracefully closes, ensuring unwavering safety for both personnel and equipment.
Rated Working Pressure |
69.0MPa~138.0MPa |
10,000psi~20,000psi |
Nominal Size |
2" |
Temperature Rating |
-29ºC~121ºC(PU),-46ºC~121ºC(LU) |
-20F~250F(PU),-50F~250F(LU) |
Service |
Standard,Sour Gas |
Application |
Fracturing,Cementing,Acidizing,Testing Lines |
An accessible mating repair kit is on hand to facilitate seamless inline maintenance, ensuring your equipment remains in peak condition with minimal downtime.
Our valves boast a unique seal type crafted from premium materials, significantly enhancing their reliability and extending their service life for sustained, worry-free operation.
The sealing surfaces and fluid-exposed areas undergo specialized treatment to dramatically bolster corrosion resistance, thus ensuring longevity and durability against the harshest conditions.
Our advanced system enables automatic open/close functionality, thereby eliminating the need for shutdowns or manual intervention, streamlining operations with effortless efficiency.
Repair Kits specifically designed for Pressure Relief Valves are meticulously crafted to ensure seamless maintenance and prolonged functionality.


Guided by our steadfast business philosophy of integrity and commitment to a progressive development policy anchored in high standards, we are poised to become the benchmark in the Manual Type Hydraulic Type Pressure Relief Valve Safety Valve industry. Every stage of our product lifecycle, from cutting-edge research and development to meticulous manufacturing and rigorous inspection, adheres to the industry's most stringent quality standards. We invite you to reach out to us with your specific equipment needs, confident in the unparalleled quality and expertise we provide.