1.Small in size and light in weight.Easy instllation and mintenance.It can be mounted wherever nedded.
2.Siple and compact construction，quick 90? degrees on-off operation.
3.Miniminzed operating torque，energy saving
4.Flow curve tending to straight line.Excellent regulation performance.
5.Long service life. Standing the test of tens of thousands opening，closing operations.
6.Bubbles-tight sealing with no leakage under the pressure test.
7.Wide selection of materials，applicable for various mdeium.