Diaphragm pump MEMDOS LA

for alkalisfor chemicalsfor wastewater

Product overview — MEMDOS LA
The MEMDOS LA motorised diaphragm dosing pump is designed for precise dosing of chemical fluids. Available in two sizes, the series covers a flow range of 4–1020 l/h and pressures up to 16 bar. The pump uses a robust tappet drive with manual or automatic capacity adjustment via external current signals and is suitable for dosing acids, alkalis, precipitants and flocculants in industrial and water treatment applications.

Properties & advantages

• Flow range 4 - 1020 l/h, up to 16 bar
• Power supply: 120 V, 208 V or 230 V, 50/60 Hz
• Material options: PVC, PP, PVDF, Stainless steel
• Stroke frequency adjustable via potentiometer (0–100 %)
• Enable input for external start/stop
• Analogue input 0/4–20 mA and analogue output 0/4–20 mA
• Level input with one switching point; alarm relay output; stroke feedback output
• Connections: hose clamp or threaded depending on variant; valve designs include DN4/DN25 double ball or spring valve
• Optional double diaphragm system for enhanced leak protection

Product properties (detailed)
MATCHCODE: 0104A0010CF11A2K2KC1EC1E
Functions: Stroke frequency adjustable by potentiometer 0 - 100
Product: MEMDOS
Type: LA
Example flow rate: 14 l/h at 50/60 Hz against max. 12 bar
Material dosing head and valves: PVC (example variant)
Electrical connection: 1.8 m mains cable with plug, Europe [at 230 V AC]
Electrical drive: 230 V 1ph 50/60 Hz 0.37 kW (motor 0.18 kW)
Suction connection: Hose clamp connection 6/9 (example) or threaded G1 1/4 depending on variant
Suction valve: DN4 double ball ceramic/PVDF/FPM [ball/seat/seal] (example)
Pressure connection: Hose clamp connection 6/9 (example) or threaded G1 1/4 depending on variant
Pressure valve: DN4 double ball ceramic/PVDF/FPM [ball/seat/seal] (example)
Indicators: Signal LEDs for status, operating and error display
Control interfaces: Enable input for external start/stop; analogue input 0/4–20 mA; analogue output 0/4–20 mA; level input with main alarm; stroke feedback output; alarm relay output

Technical specifications

• Series model: MEMDOS LA
• Flow range (series): 4 – 1020 l/h
• Max. operating pressure: up to 16 bar (dependent on variant)
• Power supply options: 120 V / 208 V / 230 V, 50/60 Hz
• Drive example: 230 V 1ph 50/60 Hz 0.37 kW (motor 0.18 kW)
• Adjustable stroke frequency: 0–100 % via potentiometer
• Control and signalling: analogue I/O 0/4–20 mA, enable input, level input with alarm, alarm relay, stroke feedback, status LEDs
• Materials available: PVC, PP, PVDF, Stainless steel
• Connections (examples): hose clamp 6/9 or G1 1/4 threaded
• Valve examples: DN4 double ball ceramic/PVDF/FPM or DN25 spring valve depending on size
• Optional: Double diaphragm system