5. Micro lift safety valve
The opening height is not large, which is suitable for liquid medium and small displacement occasions.
6. Fully enclosed safety valve
The safety valve opens the discharge medium seal and discharges it through the discharge pipe. It is often used in flammable, explosive, toxic or special media occasions.
Semi closed safety valve
When the safety valve is opened for discharge, part of the medium is discharged from the discharge pipe, and part of the medium is discharged into the atmosphere from the valve seat and valve stem clearance.
Open safety valve
When opened, the discharge medium is discharged into the atmosphere, which is suitable for non polluting medium.
Pilot operated safety valve
It consists of a main valve and a pilot valve. The role of the pilot valve is to open or close the main valve after bearing the system pressure.
In addition, from the external structure of the safety valve, it can also be divided into wrench and wrench free, bellows and bellows free, radiator and radiator free. The safety valve with bellows is suitable for corrosive media or occasions with large back pressure fluctuation; The safety valve with wrench can be manually operated for pressure relief in emergency; The safety valve with heat sink is applicable to the occasions where the temperature is higher than 300 ℃.

Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001.

Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, Electric Acurator , Pneumatic Acurators .

 For more interest, welcom to contact  at: Email: sales@nortech-v.com