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| Feature in design |
| ·Comply with the requirement of API SPEC 6A; ·Valve structure includes two kinds, i.e.rising stem and non-rising stem ·End connection type : Flange, thread, collar and butt welding ·Driving modelï¼Manual, gear drive and hydraulic. ·Gate structureÂ??Integral and expanded ·The sealing face of gate and seat is overlaying-welded with hard alloy with erosion and corrosion resistance. ·The valve seat is classified into floating and fixed structure. ·Stem filler adopts lip structure with reliable seal and small operation torque. |
