Features These two-stage hand pumps are equipped with a valve. These pumps have bigger flow and capacitycompared to the PN hand pumps but they are also a very good alternative to the PV hand pumps if weight is a significant factor. This allows automatic switch from 1st to 2nd stage. Only a moderate effort on the handle is required to reach the maximum working pressure. All models are equipped with: – Relief valve ; – Carrying handle ; – Light alloy reservoir (it reduces considerably the weight of the pump) ; – 1/2’’ BSP connection for pressure gauge. Available with 3-way, 4-way, and 4-way with controlled check valves . OPERATIONAL AREAS These pumps have bigger flow and capacity compared to the PN hand pumps but they are also a very good alternative to the PV hand pumps if weight is a significant factor. ACCESSORIES : – ZPS12 Gauge adapter for G10 gauge with screw connection ; – ZPF121 Gauge adapter for G10 gauge with screw connection.