| Media: | Gas |
|---|---|
| Certification: | CCC, ISO, CE |
| Temperature: | Low Temperature |
| Connection: | Flange |
| Pressure: | Adjustable |
| Closed: | Closed |
| Customization: |
|---|
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The FA72W-10P/R vacuum negative pressure safety valve is an advanced solution for systems operating under negative pressure conditions with temperatures up to 200 ºC. Engineered for precision, this valve automatically opens to draw in air when the negative pressure exceeds permissible levels, safeguarding your equipment and systems. As soon as the negative pressure normalizes, the valve seamlessly closes, ensuring continuous protection. Typically installed in standard non-negative pressure systems, it promptly activates to prevent equipment damage when unexpected negative pressure arises due to unrelieved container and system pressures.
Our commitment to excellence extends beyond the point of sale. Onn Valve Co., Ltd. offers comprehensive valve maintenance and troubleshooting training, whether remotely or on-site. We ensure prompt technical support, responding to inquiries within 24 hours, and provide an 18-month product warranty compliant with national standards. Our 24-hour technical support hotline guarantees immediate assistance, and we offer various complimentary after-sales services during the warranty period. Beyond the warranty, we continue to support our products with lifetime service and limited free supply of wearing parts for 18 months.
Q1: What is a safety valve?
1. Safety valves are critical for protecting lives, properties, and the environment. These devices automatically open to release excessive pressure in containers or systems, and re-close to prevent additional fluid release once normal conditions are restored.
2. Acting as the ultimate safeguard, safety valves must reliably function under all circumstances. Unlike process valves or pressure regulators, they are dedicated solely to overpressure protection, ensuring optimal safety.
Q2: How does a Safety Valve work?
The operational principle of a safety valve is as follows:
1. Open: The valve disc opens when system pressure surpasses the preset level, releasing excess pressure due to the force of the medium and spring.
2. Keep open: Once the system pressure stabilizes within the set range, the spring maintains stability, keeping the safety valve open.
3. Close: When system pressure drops below the set level, the spring loses its locking force, allowing the valve disc to close and halt further pressure increase.
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