Plunger Pumps
A plunger pump can be used for liquid or gas, whereby gas will also be compressed. The plunger, oscillating in a cylinder, sucks the fluid in across the inlet valve during the suction stroke and expells it across the outlet valve during the discharge stroke. Plunger pumps are of the reciprocating positive displacement type. In a plunger pump the high-pressure seal is stationary and a smooth cylindrical plunger slides through the seal. This makes it different from piston pumps and allows it to be used at high pressures. This type of pump is often used to transfer municipal or industrial sewage. (taken from Wikipedia)
Oscillating Piston Pumps
Hermetically sealed by magnetic drive for aqueous, little corrosive fluids without solid particles e.g. in espresso machines.
Application: cold sterilisation of medical instruments, steam generation for sterilisation and in ironing machines, carbonators, syrup concentrates in drink dispensing, fog generation at events (music, skating, dancing etc.)
Pneumatic Piston Pumps (PAA)
Made of stainless steel, long version used as drum pump for insertion into the container to be emptied, short version for integration into a piping system.
polished surfaces, pump assembly with clamp connections for fast and easy cleaning, important with food, cosmetic and pharmaceutical products.
Pneumatic Piston Pumps (PAI)
industrial version with threaded connections used for viscous products not requiring frequent cleaning nor hygienic precaution.
Pneumatic Piston Pumps (PAR)
light weight pump with higher stroke frequency for lower viscosity liquids and with lower pressure capability.
Pneumatic Piston Pumps (PPA)
high pressure version in single or twin execution (2 pumps, 1 pneumatic motor).
Plungertype Metering Pumps
made of stainless steel or PVC with continuously adjustable stroke length for precise metering of liquids not demanding perfect leaktightness.
