1、 No electric spark,Runs dry without damage,Self-priming，Ease of control & operation,Suction lift up to 7m
2、 Optional materials for casing and diaphragm used in transferring different fluids including Hazardous liquids
3、 No Seals，Low shear stress ，No damage to the Fluids
4、 No bearing parts，No mechanical seals，No connecting parts，Ease of maintenance
5、 The flow rate could be controlled by the air supply
6、 The suction lift could be controlled by the pressure
7、 Suitable for the high and low viscosity fluids
8、 Free to close the discharge，No afraid to cause an obstruction.
9、 No need for pressure relief valves

10、 No air lubrication necessary, the unbalanced piston Never stops
11、 Uses less power，least cpmpressed air leaking
12、 The exhaust valves quickly divert cold exhaust air from ice-prone components, preventing freezing
13、 Low initial cost & Few replaceable parts
14、 Ultra-rugged body construction prolongs operational life，Strengthens the resistance to the high temperature
15、 Bolted Construction for safe operation