... the check valve linkage back and forth to pump fluid volume pumps. The pump can be applied to ... solid particles of less than ø2.5mm pump fluid,are widely used in mining,metallurgy,cement,paper pulp ... .Because it's full-enclosed design,will not leak.In the rare precious metal smelting,toxic,harmful, ... no rotating parts,so in the course of transmission fluid pump does not undermine the material in the ...