1.This valve is a brand-new throttle.stop and emptying product.uses a cage-like puzzle palace throttle and features 8 multiple-stage throttle effect.a notable throttle effect.a reliable seal and easy operation and maintenance.

2.The valve uses hard and soft two seals to get it reliably sealed.the carbide alloy sealing face becomes more resisting to the gas—flow erosion and more wearable and the dual—seal can realize null leak under the high pressure gas medium.Leaving a long du—ration of the vaIve.

3.The sealing face of the seat ring uses a taper seal，benefit to the self-clean of the dirt absorbed onto the lace.

4.A balancing hole and a piston type seal are set on the valve’s disc,making su re of a stable operation.light and fiexble open—close and a small open-close torque.

5.The throttle,stop and emptying valve and the dual—action type throttle valve have both throttle and stop(mull leak with the seal)actions.with the throttle portion separated from the sealing face so as to reduce the erosion of the gas flow to the seal.

6.The dual-action type throttle valve also features a multipIe—stage throttle function and a big throttle pressure differential and is suitable for throttle and stop under a high pressure.

7.The packing uses a V-type packing structure with self-seal ability. Without need to adjust and with both open and close ex—tremely light,Anassisting sealing grease injector is set in the packing place to have its sealing performance reliable.

8.The valve can be on-line repaired and replacement of the packing etc.series easily-worn-out parts can be done with a pressu re with the pipeline.

9.A bigger sewage removing hole is set on the bottom of the valve，it can be opened when necessary to clean up the dirt inside of the vaIve.