Hygienic Metering Pumps
New metering heads comply with the most stringent hygienic requirements. Dependent on required capacity range motor- or solenoid-driven metering pumps will be employed.
The proven Sigma motorised metering pumps and delta® diaphragm metering pumps with regulated solenoid drive form the basis of the pumps.
The new hygienic Pumps are equipped with stainless steel pump heads. These fulfill all requirements according to EHEDG (European Hygienic Engineering & Design Group). The Research Center Weihenstephan for Brewing and Food Quality at the Technical University of Munich conducted special tests on the pump head in accordance with EHEDG cleanability methods. These tests guarantee perfect cleanability. The stainless steel pump head is EHEDG-certified in combination with delta® solenoid-driven metering pumps and Sigma motor-driven metering pumps.
EHEDG pump heads
- The pump metering head with welded return valves and the valve heads are made of stainless steel 1.4404 or 316L.
- The surfaces are polished and have a surface roughness of less than Ra = 0.8 µm.
- The housing of the return valve consists of two parts, which are screwed together using a tri-clamp flange.
- The seal is created with a preformed PTFE gasket.
- The metering diaphragm on the pump is made of PTFE and vulcanised rubber on the reverse. The surface is smooth and sealed.
- Emptying the pump is easy as the fittings are arranged vertically.
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