**Use:**
A safety valve is a critical component installed on pressure equipment, vessels, and piping systems to provide overpressure protection. It is designed to remain tightly sealed under normal operating conditions, ensuring no leakage occurs when the system pressure is within safe limits. However, if the pressure in the system exceeds the allowable threshold, the safety valve should automatically open to release the excess pressure quickly, preventing further increases that could damage the equipment or cause dangerous failures. Once the pressure drops back to a safe level, the valve must close promptly and maintain a secure seal, ensuring continued safe operation of the system.
Safety valves come in various types, including lever type, spring-loaded, and pilot-operated (or pulse type). Based on the ratio of the valve disc's maximum lift to the seat diameter, they can be classified as either low-lift or full-lift models. Additionally, some safety valves are equipped with hand wheels for manual testing or adjustment, while others are not. They can also be either closed or open, depending on the application and environmental requirements.
**Installation:**
1. Spring-loaded safety valves must be installed in an upright position to ensure proper function and reliability.
2. The outlet of the safety valve must be free from any resistance or back pressure. If a discharge pipe is used, it should have a diameter equal to or larger than the valve’s outlet to avoid restricting the flow of released media.
3. Some safety valves feature a hand wheel or an adjustable ring on the seat, which allows for inspection, calibration, and fine-tuning. These features are particularly useful during maintenance and testing to ensure the valve operates correctly under different conditions.
Proper installation and regular maintenance of safety valves are essential to ensure their effectiveness in protecting equipment, personnel, and the environment from potential overpressure hazards. Always follow the manufacturer’s guidelines and local regulations when installing or servicing these critical safety devices.
Test tubes, Pipette guns, Centrifuge Tubes, etc. in the laboratory need to be organized. Therefore, there is a need for laboratory table top racks that are easy to clean, store, and transport.
laboratory rack plastic,rack for laboratory,storage rack for laboratory
Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yonyue.com