PM2 series air operated piston pumps. Double acting air operated low pressure pumps for transferring lubricants. Pumps include height adjustable 2" BSP (M) bung adaptor for tank or drum bung mounting. Air consumption with 6 bar (87 psi) air inlet pressure and 150 cycles/min. Maximum free delivery at 7 bar (102 psi). Maximum noise level measured at 1 m (3') from the pump, 7 bar (102 psi) air pressure and free delivery.