Product Introduction
1. Two section valve stem design, with the upper valve stem thread treated with special modification and the lower valve stem surface polished.
2. The up and down movement of the lower valve stem replaces rotating lifting, greatly reducing the total friction area of each stroke.
3. The non rotating lower valve stem avoids scratching the valve tip and seat during the valve closing process due to compression rotation.
4. The lubricating grease on the upper valve stem thread is isolated from the medium.
5. The valve has a back sealing function in the fully open position.
6. Can be panel mounted.
7. The handle is locked with screws, which is stable and durable.
8. The color of the handle is optional.
9. Each valve undergoes a sealing test with nitrogen gas at its rated working pressure before leaving the factory.