53pcs of arbasion resistant natural rubber seat knife gate valves for mining slurry exported to Chile. The sizes are from 3'' to 16'', for 16'' knife gate valves, there are some valves with gearbox and some valves with double acting pneumatic actuators. They will be used for abrasive mining slurry with 30% solid.

Material specifications of mining slurry knife gate valves are as below:

1. Body: GGG40

2. Disc: Duplex stainless steel 2205

3. Stem: 2Cr13 for manual operated valves, 45# steel +Cr for pneumatic actuated

4. Seat: Natural Rubber(NR)

These wafer type heavy duty knife gate valves with face to face according to MSS SP-81 are designed, manufactured and tested according to MSS SP-81, drilled according to ASME B16.5 150lbs.