Grundfos DMX 35-10 Mechanical Dosing Pump 35 L/h 10 Bar
Grundfos DMX 35-10 Mechanical Dosing Pump 35 L/h 10 Bar
The Grundfos DMX 35-10 is a robust mechanical diaphragm dosing pump delivering up to 35 L/h at 10 bar. It features a PVC dosing head, PTFE-coated diaphragm, PTFE valve components and manual stroke-length adjustment. Ideal for water treatment, chemical dosing, disinfection, pH adjustment and industrial process applications.
Vendor: Grundfos
Unavailable
KEY FEATURES
- Approx. 35 L/h nominal dosing capacity at 50 Hz
- 10 bar maximum operating pressure
- Robust positive displacement diaphragm dosing pump
- Mechanically coupled diaphragm drive
- PVC dosing head
- Long-life PTFE-coated diaphragm
- PTFE/composite valve balls
- PTFE/composite valve seats
- PTFE/composite valve gaskets
- Double ball valve design for this flow range
- Handles liquids up to 100 mPa·s viscosity
- Manual stroke-length adjustment with 10:1 adjustment ratio
- Standard inlet and outlet non-return valves
- Multiple inlet and outlet connection size options
- 3 × 230/400 V, 50 Hz three-phase motor
- 0.09 kW power input
- IP65 enclosure rating
- CE, EAC and CNROHSEX approvals
The Grundfos DMX 35-10 is a versatile positive displacement diaphragm dosing pump designed for reliable chemical dosing in industrial and process applications. The DMX 221 series combines robust construction with straightforward mechanical capacity adjustment for dependable dosing performance.
The diaphragm is mechanically 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. The DMX 221 design uses double ball valves for capacities up to 50 L/h, supporting reliable dosing performance across this flow range.
This configuration features a PVC dosing head, long-life PTFE-coated diaphragm, PTFE/composite valve balls, PTFE/composite valve seats and PTFE/composite valve gaskets. With a nominal dosing capacity of 35 L/h, maximum operating pressure of 10 bar and compatibility with liquids up to 100 mPa·s viscosity, the pump provides dependable performance for compatible industrial and chemical dosing applications.
ADDITIONAL FEATURES
- Long-life PTFE-coated diaphragm
- Mechanically coupled diaphragm design
- Easy-to-install and operate design
- Chemically resistant Noryl pump housing
- Optimum capacity and stroke-frequency graduation
- Dosing flow variation ±1.5% (FS)
- Linearity ±4% (FS)
- Double ball valve design for capacities up to 50 L/h
- Standard inlet non-return valve
- Standard outlet non-return valve
- Connection pack for inlet and outlet
- Connection sizes: 4/6, 6/9, 6/12 and 9/12
- Maximum permissible inlet pressure of 0 bar
- Liquid temperature range from 0 to 40 °C
- Standard control variant
- Not prepared for VFD operation
- IP65 motor enclosure
APPLICATIONS
- Process engineering, water treatment, wastewater treatment, industrial chemical dosing, chemical treatment, disinfection, pH adjustment and other applications requiring reliable chemical metering at pressures up to 10 bar.
PRODUCT PACKAGE INCLUDES
- Grundfos DMX 35-10 Mechanical Dosing Pump
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product Name | Grundfos DMX 35-10 |
| Product Number | 99772759 |
| Model / Configuration | DMX 35-10 B-PVC/T/T-X-E1U2U2XEMNG |
| EAN Number | 5713834053122 |
| Pump Type | Positive displacement diaphragm dosing pump |
| Diaphragm Drive | Mechanically coupled |
| Nominal Flow Rate | 35 L/h at 50 Hz (approx. 9.25 US GPH) |
| Maximum Operating Pressure | 10 bar (approx. 145 psi) |
| Number of Dosing Heads | 1 |
| Maximum Viscosity | 100 mPa·s |
| Pump Housing | Noryl |
| Dosing Head Material | PVC |
| Diaphragm | PTFE-coated |
| Valve Ball Material | PTFE / Composite |
| Valve Seat Material | PTFE / Composite |
| Valve Gasket Material | PTFE / Composite |
| Valve Configuration | Double ball valves |
| Inlet Non-Return Valve | Standard |
| Outlet Non-Return Valve | Standard |
| Inlet Connection | Connection pack |
| Outlet Connection | Connection pack |
| Connection Sizes | 4/6, 6/9, 6/12, 9/12 |
| Maximum Permissible Inlet Pressure | 0 bar |
| Liquid Temperature Range | 0 to 40 °C |
| Power Input (P1) | 0.09 kW (approx. 0.121 HP) |
| Rated Voltage | 3 × 230/400 V |
| Mains Frequency | 50 Hz |
| Maximum Frequency | 50 Hz |
| Enclosure Class | IP65 |
| Control Variant | Standard |
| Frequency Converter | Not prepared for VFD |
| Cable Included | No |
| Power Plug | No plug |
| Diaphragm Leakage Detection | No |
| Net Weight | 7 kg (approx. 15.4 lb) |
| Gross Weight | 9.55 kg (approx. 21.1 lb) |
| Shipping Volume | 0.04 m³ |
| Approvals | CE, EAC, CNROHSEX |
| Country of Origin | Germany (DE) |
| Custom Tariff Number | 8413509060 |
ADDITIONAL RESOURCES
PRODUCT BROCHURE
Additional information about Grundfos DMH Mechanical Dosing Pumps are outlined in the DMH product brochure.
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PRODUCT INFORMATION SHEET (PIS)
Detailed information about the product, is provided in the product information sheet below.

