| Media: | Gas |
|---|---|
| Standard: | ASTM |
| Certification: | CCC, ISO, CE |
| Temperature: | Ordinary Temperature |
| Connection: | Flange |
| Pressure: | Adjustable |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier
Our Pilot Operated Safety Relief Valve is a groundbreaking, structurally advanced safety valve. Primarily utilized in industries such as petroleum and natural gas, chemical manufacturing, electrical power, metallurgy, and urban gas management, it stands as the pinnacle of overpressure protection for pressure equipment, containers, or pipelines. Key benefits include the transition from direct spring action to indirect guide valve action, significantly enhancing sensitivity. The main valve features a sleeve piston design, offering superior action accuracy, excellent repeatability, high reseating pressure, outstanding sealing performance, and the ability to discharge at high back pressure. This ensures stable and reliable operation, with online adjustability for ease of use and maintenance.
Onn Valve Co., Ltd. offers comprehensive valve maintenance and training services for troubleshooting common faults. We provide remote or on-site valve assessments, installation, and operational guidance. Our technical team responds to user inquiries within 24 hours. We offer an 18-month product warranty (in alignment with national standards), a 24-hour technical support hotline, and various forms of complimentary after-sales service during the warranty period. Post-warranty, we continue to provide lifetime after-sales service and supply free wear parts for the first 18 months.
Q1: What is a safety valve?
1. The primary purpose of safety valves is to safeguard human life, property, and the environment. Safety valves are engineered to open and release excess pressure from a container or device, subsequently closing to prevent further fluid release once normal conditions are restored.
2. Safety valves are essential safety devices, often serving as the final line of defense. It is crucial to ensure their operational readiness at all times and under all conditions. Unlike process valves or pressure regulators, safety valves should only be used for overpressure protection.
Q2: How does a Safety Valve work?
The operational principle of a safety valve is as follows:
1. Opening Phase: When system pressure surpasses the safety valve's set pressure, the valve disc opens due to the combined action of medium pressure and spring force, releasing excess pressure.
2. Sustaining Open: When system pressure stabilizes within the set range, the spring steadies, keeping the system under control and the safety valve open.
3. Closing Phase: When the system pressure falls below the set threshold, the spring can no longer maintain the seal, prompting the valve disc to close under the medium pressure, halting any further pressure increase.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}