| Media: | Gas |
|---|---|
| Certification: | CCC, ISO, CE |
| Temperature: | Low Temperature |
| Connection: | Flange |
| Pressure: | Adjustable |
| Closed: | Closed |
| Customization: |
|---|
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The innovative FA72W-10P/R vacuum negative pressure safety valve is perfectly engineered for negative pressure systems operating at temperatures up to ≤ 200 ºC. Designed with precision, this valve automatically opens to admit air when the internal negative pressure exceeds safe limits, and seamlessly closes when the pressure stabilizes within acceptable parameters, thereby safeguarding the equipment and the entire system. Ideal for installations in standard non-negative pressure systems, the vacuum negative pressure safety valve activates whenever the container's release valve is inactive and negative pressure arises, ensuring robust protection against potential damage.
Onn Valve Co., Ltd. takes pride in offering comprehensive after-sales support. Our services include routine maintenance of valves and specialized training for troubleshooting common issues. We provide both remote and on-site valve inspections, installation, and operational guidance. Our dedicated team guarantees a response to any technical inquiries within 24 hours. Enjoy an 18-month product warranty, in line with national standards, along with a 24-hour technical support hotline. Throughout the warranty period, benefit from a variety of free after-sales services, lifelong support, and a limited supply of free replacement parts for 18 months.
Q1: What is a safety valve?
1. Primarily, safety valves serve to protect lives, properties, and the environment. These valves are meticulously designed to open and discharge excess pressure from a container or device and to re-close, preventing further fluid release once normal conditions are restored.
2. Recognized as a critical safety device, safety valves often represent the final protective measure in various systems. Ensuring the reliable operation of safety valves under all conditions is paramount. Unlike process valves or pressure regulators, safety valves should solely be utilized for overpressure protection.
Q2: How does a Safety Valve work?
The working principle of a safety valve can be summarized as follows:
1. Open: When system pressure surpasses the safety valve's set threshold, the valve disc opens under the combined force of medium pressure and the spring, thus releasing excess pressure.
2. Keep open: As system pressure stabilizes within the designated range, the spring maintains a steady state, keeping the safety valve open to manage the stress.
3. Close: When system pressure falls below the valve's set point, the spring can no longer sustain the seal, prompting the valve disc to close under medium pressure, thereby halting any further pressure increase.
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