Constructional features
- electrically driven
- pump head made of various metal materials
- air vessels for pulsation dampening; diaphragm pulsation dampeners on demand
- compact diaphragm-valve unit with reduced clearance volume
- double diaphragm
- internal adjustment of pressure and quantity in dependence of the discharge pressure in the field of filter press feeding
- adjustment by means of frequency converter on demand
Field of application
Pumping of abrasive and aggressive materials. Very gentle pumping of materials sensitive to shear
Materials
- cast-iron
- cast-iron rubber-lined
- various stainless steel
Capacities
0,5 – 65 m³/h
Pressure
1,6 MPa (16 bar) as standard design, higher pressures acc. project requirements
Temperature of pumped material
up to 100°C as standard design, higher temperatures on demand
Download Leaflet
Valves and diaphragms are arranged in one casing, and the pump is equipped with a preformed roller diaphragm; The result is an especially compact constructed pump.
single-acting piston diaphragm pump type ER511S 
sectional drawing of single-acting piston diaphragm Pump type ER520S