1. The structure is compact and the shape is beautiful. Most castings are made by precision casting, and the surface is smooth and clean.

2. The valve seat and valve body are of split type. The valve seat is easy to process and the sealing surface is easy to grind into a mirror surface to ensure sealing and facilitate assembly, disassembly and maintenance.

3. The reasonably designed recoil disc is matched with the regulating ring, which is easy to adjust, so that the safety valve can be opened quickly and reseated in time, and the ideal opening and closing differential pressure can be obtained.

4. The valve seat and disc are welded with cobalt based hard alloy, which is wear-resistant, erosion resistant, and has guaranteed sealing, extending the service life.

5. The back pressure balanced safety valve is made of military corrugated pipe, which can effectively eliminate the impact of back pressure on the takeoff pressure, and can also play a tight isolation role for corrosive and toxic media to prevent the media from corroding the valve internals and polluting the environment.

6. As a key part, the spring shall be subject to 24 hour constant temperature treatment twice to ensure its rigidity is stable and its jump action is correct in the working state.

7. The valve body, valve seat and other pressure parts are subject to strict pressure test to ensure safety and reliability in use.