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| Notes | Shaft |
|---|---|
| Weight (lbs) | 0.13 |
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 |
|---|---|
| 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 | 4.8 gph (18 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 | 100 cps |
| Speed | 96 stroke/min (at 50 Hz), 115 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 |
| Plug Type | USA, Canada |
| Signal Input | 12V 5mA (Contact Signal, Remote On/Off, Tank-Empty Signal), 22 ohm at 0 - 20mA |
| Stroke Volume | 3.1 cm3 |
| Valve Type | Standard |
| Notes | Shaft |
| Displacement | Positive Displacement |