Alternating volumetric pumps with three semi-hydraulic diaphragms for use in agriculture in low pressure systems for spraying open field crops with fertilisers, pesticides or weed killers. Parts in contact with pumped liquids in plastic-coated aluminium and stainless steel. Diaphragms in NBR. Seals in NBR or Viton. Die-cast casing with oil-immersed mechanism and clear plastic tank for visual level checking. Pistons with ring for a more efficient “oil cushion” system to protect the diaphragm. New-design diaphragm cut-out system to prevent contact tearing even in heavy-duty operating conditions. Spherical sector profile valves for lower flow resistance and improved volumetric efficiency. Rugged feet secured to pump casing. GEOMET coated or stainless steel metal fasteners. Stopper for drainage of liquid from the circuit before storage over winter. Complete with relief valve with manual reset and drive shaft guard.

Semi-hydraulic two-diaphragm pump, for use in low pressure systems. Parts in contact with pumped liquids in plastic-coated aluminium Rilsan and AISI 303/304. Diaphragms in BlueFlex™. Seals in NBR. Die-cast casing with oil-immersed mechanism and clear plastic tank for visual level checking. Remote oil tank installation kit available on request. Fitted with air-hydraulic damper for smoother operation and less hammer effect in the delivery circuit. Oil drainage stopper. Pistons with ring for a more efficient “oil cushion” system to protect the diaphragm. Spherical sector profile valves for lower flow resistance and improved volumetric efficiency. Rugged feet secured to pump casing. Mass-produced safety valve and cardan protection. Geomet metal fasteners. Available pulley fixtures or flanges for hydraulic motors.

Semi-hydraulic three-diaphragm pump, for use in low pressure systems. Parts in contact with pumped liquids in plastic-coated aluminium Rilsan and AISI 303/304. Diaphragms in NBR. Seals in NBR. Die-cast casing with oil-immersed mechanism and clear plastic tank for visual level checking. Fitted with air-hydraulic damper for smoother operation and less hammer effect in the delivery circuit. Remote level monitoring sensor on request. Remote oil tank installation kit available on request. Oil drainage stopper. Pistons with ring for a more efficient “oil cushion” system to protect the diaphragm. Spherical sector profile valves for lower flow resistance and improved volumetric efficiency. Rugged feet secured to pump casing. Mass-produced safety valve and cardan protection. Geomet metal fasteners. Available with reduction gearbox for internal combustion engines.

Semi-hydraulic three-diaphragm pump, for use in low pressure systems. Parts in contact with pumped liquids in plastic-coated aluminium Rilsan and AISI 303/304. Diaphragms in NBR. Seals in NBR. Die-cast casing with oil-immersed mechanism and clear plastic tank for visual level checking. Fitted with air-hydraulic damper for smoother operation and less hammer effect in the delivery circuit. Remote level monitoring sensor on request. Remote oil tank installation kit available on request. Oil drainage stopper. Pistons with ring for a more efficient “oil cushion” system to protect the diaphragm. Spherical sector profile valves for lower flow resistance and improved volumetric efficiency. Rugged feet secured to pump casing. Mass-produced safety valve and cardan protection. Geomet metal fasteners. Available with reduction gearbox for internal combustion engines.