Pumps
DM-45 Diaphragm Dosing Pump
DM-45
Motor-driven diaphragm pump for accurate chemical metering.
Capacity
Up to 520
l/h
Max. pressure
10
bar
Turn-down ratio
1:10
—
Fluid temperature
-10 to 80
°C
Overview
The DM-45 is a mechanically actuated diaphragm metering pump with a PTFE-faced diaphragm and a manually adjustable stroke length. Output is nearly independent of back pressure within its rated range.
Stroke length and stroke rate combine to set the dose, and the head is available in several wetted materials.
Key features
PTFE-faced diaphragm
Adjustable stroke length, 0–100%
Repeatability within ±2% (illustrative)
Optional variable-speed drive
Datasheet
Technical specifications
Illustrative demonstration data. Units are shown with each value; confirm all duty and material data against the project datasheet before specifying.
Performance
Capacity range
5 – 520 l/h
Performance
Max. back pressure
10 bar
Performance
Stroke rate
Up to 120 /min
Connections
Suction / discharge
G½ – G1½
Drive
Motor power
0.18 – 0.75 kW
Operating limits
Fluid temperature
-10 to 80 °C
Operating limits
Viscosity
Up to 500 mPa·s
Mass
Complete unit
14 – 36 kg
Materials of construction
Head
PVC or stainless steel 316
Diaphragm
PTFE-faced EPDM
Valves
Ceramic balls
Housing
Aluminium, powder-coated
Standards
Design reference: API 675 principles (illustrative)
Operating conditions
Chemical dosing of clean, non-abrasive liquids.
Applications
Tell us the duty point and we will propose the equipment.
Send flow, head or pressure class, fluid and temperature. A demonstration form: connect your own destination before launch.