PM3 air operated piston pumps. Light weight and effective high pressure delivery air operated pumps specially designed for use in mobile and portable greasing units. Pumps are available with four different suction tube lengths, to fit all commercial grease drums: 12,5 - 20 kg (35 lb), 50 kg (120 lb) and 185 kg (400 lb). They include a height adjustable 2” BSP (M) bung adaptor. Maximum air consumption with 6 bar (87 psi) air inlet pressure, NLGI-2 grease at 20 ºC and 110 cpm. Maximum free delivery at 6 bar (87 psi). NLGI-2 grease. Maximum noise level measured at 1 m (3.3') from the pump, 7 bar (100 psi) air pressure and free delivery.