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Weight (lbs) | 28.3 |
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The Grundfos DMH pumps are hydraulic diaphragm dosing pumps. The DMH pumps are designed for capacities between 0.50 and 2 x 278 GPH and a maximum pressure up to 2900 PSI. The Grundfos DMH range is a series of hydraulic pumps for applications demanding a high-quality pump. With its high accuracy and modern interface possibilities, the DMH is ideal for many applications in water treatment and industrial processing.
Brand | Grundfos |
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Product Type | Pump |
Material - Diaphragm | PTFE |
Inlet/Outlet Connection Type | MNPT |
Inlet Size | 1/2 in |
Motor Hz Rating | 50/60 |
Motor Voltage | 120 VAC |
Mounting | Flat Surface Mount With Four Screws |
Outlet Size | 1/2 in |
Material - Seal | EPDM/EPR |
Seal Type | Gasket |
Material - Balls | 316 Stainless Steel |
Max Flow | 1.32 gph (5 lph) |
Max Temperature | 68°F (20°C) |
Noise Level | 55 dB(A) |
Max Pressure | 116 psi (8.0 bar) |
Voltage | 120 V, 50/60Hz |
Accuracy | +/-1.5% |
Enclosure | IP 65 |
Max Viscosity | 300 cps |
Speed | 29 stroke/min (at 50 Hz), 35 stroke/min (at 60 Hz) |
Signal Output | <350 Ohm at 0(4) to 20mA, 50VDC/75VAC (Pre-Empty Signal, Error Signal), 0.5A (Pre-Empty Signal, Error Signal), 200 ms (Stroke Signal) |
Control Variant | External Control (AR Control Unit) |
Fluid Type | Water |
Material - Dosing Head | PVC |
Max Suction Lift | 3.3 ft |
Model | DMH 251 |
Operation Modes | Manual Speed Control, Pulse control (in ml/pulse), Analog Control (0/4 - 20 mA), Pulse-Based Batch Control |
Signal Input | 12V 5mA (Contact Signal, Remote On/Off, Tank-Empty Signal), 22 ohm at 0 - 20mA |
Stroke Volume | 3.5 cm3 |
Valve Type | Standard |
Displacement | Positive Displacement |