1. It is small and light, easy to disassemble and maintain, and can be installed in any position.
2, simple structure, compact, 90° operation fast opening and closing.
3. Small operating torque, light and labor-saving.
4. Completely sealed, zero leakage in gas test.
5, choose different parts and materials, can be used for a variety of media.
6. Flow characteristics tend to be straight line with good regulation performance.
7. As many as tens of thousands of opening and closing tests, with a long life.