... sand pump 3.high pressure mud pump 1, Production Overview: Type ZG(or ZGH)gravel pumps are the series products introduced ... and abrasion resitance. 2, Main Features: Single casing structure; High efficiency, wear resistant, wide flow channel, good ability of NPSH ... belt. 3, Main Usages Delivery of slurry with strong abrasion high concentration for metallurgy, mines, coal and power plant, especially ...