**Use:**
A safety valve is a critical component installed on pressure equipment, vessels, and pipelines to serve as an overpressure protection device. It must be properly sealed and leak-free before the system pressure exceeds the allowable limit. When the pressure within the equipment or pipeline rises above the safe threshold, the safety valve should automatically open to release the excess pressure, preventing further increases that could lead to damage or failure. Once the pressure drops back to the setpoint, the valve should close promptly and maintain a tight seal, ensuring the continued safe operation of the system.
Safety valves come in various types, including lever (hammer), spring-loaded, and pilot-operated (or pulse-type) designs. Based on the ratio of the valve disc’s maximum opening height to the seat diameter, they can be classified as either low-lift (micro-opening) or full-lift (full-open) types. Additionally, some safety valves are equipped with hand wheels for manual testing or adjustment, while others do not. They may also be available in both closed and open configurations, depending on the application requirements.
**Installation:**
1. Spring-loaded safety valves must be installed in a vertical position to ensure proper operation.
2. The outlet of the safety valve should be free from backpressure or resistance. If a discharge pipe is used, it must have a diameter equal to or larger than the valve’s outlet to avoid restricting flow.
3. Some safety valves feature a hand wheel or adjustment ring on the valve seat, which allows for inspection, calibration, and fine-tuning of the set pressure. These features are especially useful during maintenance and testing to ensure the valve functions correctly under real operating conditions.
Proper installation and regular maintenance of safety valves are essential to their effectiveness and the overall safety of the system. Always follow the manufacturer’s guidelines and industry standards when installing and servicing these devices.
Pipette tips are consumables commonly used in chemistry,biology,medicine to transport a measured volume of liquid.It has many types and specifications,transparent or black,with or without filter,max volume can be from 10ul to 1250ul. We produce the pipette tips in 100,000 grade cleaning room.So the tips we have are DNAse, RNAse free and sterilized.
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