There is a lot different price and quality lever about ball valves in China local market. And how to find out same price in best quality lever? Mainly reflects the following 6 points:
1) . Improve the ISO5211 Pad
When actuator valve stem side is leaking at work, it can be urgently tightened up. And it is just needs the common tools, no need take off the actuator with special tools.
2) Stem with One more O-ring Sealing
Enhanced sealing property,new stem add one or two more green O-Ring.
Stem with Thread- Actuator or manual handle both are OK. Certainly, without thread also is ok for us, if you required. And stem with open side marking.
3. Two separated Seat Design-Low torque than normally Seat
4. Body Inside Machined by CNC.
Make sure the inside is round, reduce the degree of wear between ball and valve walls.
All trims (except handle and lock) at least in 304 material, without 201.
Such as bolts, nuts, washers in 304, only handle and lock in 201.
6. Pressure Testing
100% 0.8mpa air pressure testing and keep it in 24 hours to ensure that each valve meets the requirements.
Each tested valves with paste”100% tested”.
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