Grundfos DMH 550-10 Mechanical Dosing Pump 550 L/h 10 Bar
Grundfos DMH 550-10 Mechanical Dosing Pump 550 L/h 10 Bar
Vendor: Grundfos
Unavailable
KEY FEATURES
- Approx. 550 L/h nominal dosing capacity at 50 Hz
- 10 bar maximum operating pressure
- Robust positive displacement diaphragm dosing pump
- PVC dosing head
- Ceramic (Al₂O₃) valve ball
- PTFE/composite valve seat
- FKM valve gasket
- Long-life PTFE diaphragm
- Handles liquids up to 5 mPa·s viscosity
- Manual stroke-length adjustment with 10:1 adjustment ratio
- Enlarged inlet ball valve
- DN40 cementing inlet connection
- 19/27 and 20/25 outlet connection size options
- 3 × 230/400 V, 50 Hz three-phase motor
- 0.6 kW power input
- IP55 enclosure rating
- CE, EAC and CNROHSEX approvals
The Grundfos DMH 550-10 is a versatile positive displacement diaphragm dosing pump designed for reliable high-capacity chemical dosing in demanding industrial and process applications. The DMH range is engineered for robust operation where dependable dosing performance and high dosing capacities are required.
The diaphragm is hydraulically coupled through a precise gear-eccenter-tappet system to a high-efficiency AC motor. Dosing capacity can be adjusted by varying the stroke length using the stroke adjustment knob, providing an adjustment ratio of 1:10.
This configuration features a PVC dosing head, long-life PTFE diaphragm, ceramic Al₂O₃ valve ball, PTFE/composite valve seat and FKM valve gasket. It also incorporates an enlarged inlet ball valve with a DN40 cementing inlet connection to support its higher dosing capacity. With a nominal dosing capacity of 550 L/h and maximum operating pressure of 10 bar, the pump provides robust performance for demanding industrial and chemical dosing environments.
ADDITIONAL FEATURES
- Long-life PTFE diaphragm
- Easy-to-install and operate design
- Aluminium pump housing
- Optimum capacity and stroke-frequency graduation
- Dosing flow variation ±1.5% (FS)
- Linearity ±2% (FS)
- Enlarged inlet ball-type non-return valve
- Standard outlet non-return valve
- DN40 cementing inlet connection
- Outlet connection sizes: 19/27 and 20/25
- Maximum permissible inlet pressure of 0.8 bar
- Liquid temperature range from 0 to 40 °C
- Standard control variant
- Not prepared for VFD operation
- IP55 motor enclosure
APPLICATIONS
- Process engineering, water treatment, wastewater treatment, industrial chemical dosing, chemical treatment, disinfection, pH adjustment and other applications requiring reliable high-capacity chemical metering at pressures up to 10 bar.
PRODUCT PACKAGE INCLUDES
- Grundfos DMH 550-10 Mechanical Dosing Pump
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product Name | Grundfos DMH 550-10 |
| Product Number | 99587834 |
| Model / Configuration | DMH 550-10 B-PVC/V/C-X-E7U3B8XEMAG |
| EAN Number | 5713831499527 |
| Pump Type | Positive displacement diaphragm dosing pump |
| Nominal Flow Rate | 550 L/h at 50 Hz (approx. 145.29 US GPH) |
| Maximum Operating Pressure | 10 bar (approx. 145 psi) |
| Number of Dosing Heads | 1 |
| Maximum Viscosity | 5 mPa·s |
| Pump Housing | Aluminium |
| Dosing Head Material | PVC |
| Diaphragm | PTFE |
| Valve Ball Material | Ceramic (Al₂O₃) |
| Valve Seat Material | PTFE / Composite |
| Valve Gasket Material | FKM / Rubber |
| Inlet Non-Return Valve | Enlarged ball valve |
| Outlet Non-Return Valve | Standard |
| Inlet Connection Type | Cementing |
| Inlet Connection Size | 40 (DN40) |
| Outlet Connection Type | Connection pack |
| Outlet Connection Sizes | 19/27, 20/25 |
| Maximum Permissible Inlet Pressure | 0.8 bar (approx. 11.6 psi) |
| Liquid Temperature Range | 0 to 40 °C |
| Power Input (P1) | 0.6 kW (approx. 0.805 HP) |
| Rated Voltage | 3 × 230/400 V |
| Mains Frequency | 50 Hz |
| Maximum Frequency | 50 Hz |
| Enclosure Class | IP55 |
| Control Variant | Standard |
| Frequency Converter | Not prepared for VFD |
| Cable Included | No |
| Power Plug | No plug |
| Diaphragm Leakage Detection | No |
| Net Weight | 37 kg (approx. 81.6 lb) |
| Gross Weight | 45.7 kg (approx. 100.8 lb) |
| Shipping Volume | 0.995 m³ |
| Approvals | CE, EAC, CNROHSEX |
| Country of Origin | Germany (DE) |
| Custom Tariff Number | 8413509060 |
ADDITIONAL RESOURCES
PRODUCT BROCURE
Additional information about Grundfos DMH Mechanical Dosing Pumps are available in the DMH product leaflet.
DATASHEET
Detailed specifications for the Grundfos DMH 550-10 Mechanical Dosing Pump 550 L/h 10 Bar are available in the datasheet below.
Additional technical data about the Grundfos DMH Mechanical Dosing Pumps are available in the product datasheet.

