1, What is safety valve?

Safety Valves is a mechanism for automatic valve exhaust, steam from the boiler, pressure tank or other hydraulic systems. Safety valve device heading input pressure regulator. The main task of the safety valve hydraulic circuit is protected from pressure or temperature rise exceeds the permitted limit has been installed earlier.

2, Principle of Operation

In the process of work, safety valves operate on the principle Becnuli. In the normal state, the valve is always closed. When the valve inlet pressure exceeds the rating (as we install), safety valve opens to allow a fluid flow through the valve portion of the container.

Watch the video to learn more:
* Note :
To use efficiency, safety valve should be calibrated in the following cases:
- Before putting into operation
- Maintenance during operation
- When testing regularly or when signs of abnormalities.
* The basic test steps:
- Technical Inspection with the naked eye (for people with expertise in the field)
- Use of liquid (water, oil dedicated) or gas (compressed air, nitrogen) raising the pressure to test pressure and impact pressure of the valve closed.
- Check tightness of fit.

3, The safety valves currently used

* Hydraulic safety valve: used for water lines, particularly in the fire protection system
 
* Safety valve catch flanges, threaded: usually used for steam systems, compressed air or a small country road.
 
Address distribution of safety valves prestige, quality:
Technology Joint Stock Company Phu Thanh
• Headquarters: So12B Lane 2 8 P.Quang neighborhood Trung, Ha Dong, Hanoi
• Business location: No. 115A - Phan Trong Tue - Tam Hiep - Thanh Tri - Ha Noi
• Telephone: [84] 43.668.6336
• Fax: [84] 43.668.6316
• Email: phuthaco@gmail.com
• Website: http://phuthanh.net