Product Description: Wilden the wilton P Series plastic pumps ----- dual-chamber diaphragm pump driven by gas source, its simple structure, easy operation and maintenance; applies to both general application spaces suitable for special applications place semiconductor and wastewater treatment industry, including a wide field of applications. The pump uses polypropylene, poly-vinylidene fluoride, and a conductive acetal made, the diaphragm, the valve ball and the valve seat can be synthetic rubber, neoprene, polypropylene, and the three rubber, fluorinated rubber and polytetrafluoroethylene . Detailed parameters: pump Model-diameter (10-inch) maximum flow rate (L / M) maximum transport particles (mm) largest exporter of pressure (bar) P.025 1/4 18.2 0.4 8.6 P1 1/2 56.1 1.6 8.6 P2 1 140 3.18 8.6 P4 1.5 352 4.76 8.6 P8 2 586.7 6.35 8.6 W15 3 844 9.5 8.6