Roll over image to zoom
SKU: 99206037
Grundfos DMX 280-8 Aluminium EPDM 3-Phase Dosing Pump for Drinking Water with Mechanical Diaphragm
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Chemical industry applications requiring higher dosing capacity are served by the DMX 280-8 mechanical diaphragm dosing pump from Grundfos. Manual stroke length adjustment from 10-100% gives a 10:1 turndown ratio for dosing rate control.
The DMX 280-8 delivers 280 L/h maximum dosing capacity at 8 bar pressure, operating at 50 Hz with a 0.40 kW motor on 3 x 415v supply. Dosing flow variation is maintained at less than ±1.5% with linearity within ±4% at minimum 1 bar differential pressure. Suction lift during operation is 3 metres.
Thermoplastic dosing head on the DMX 280-8 with ceramic valve balls and EPDM gaskets incorporates standard non-return valves. The PTFE-coated diaphragm handles liquid temperatures from 0 to 40°C.
Aluminium gear housing with IP65 enclosure protects the DMX 280-8. G5/4 connections accommodate 19/27 and 20/25 mm connections.
FEATURES
- Adjustable stroke length from 10-100% of maximum
- 0.40 kW motor for increased dosing capacity
- EPDM gaskets for chemical compatibility
- Standard non-return valves on suction and discharge
- PTFE-coated diaphragm for chemical resistance
- IP65 enclosure for industrial environments
- G5/4 connections for 19/27 and 20/25 mm tubing
SPECIFICATIONS
| Max Flow | 4.67 L/Min |
| Max Head | 81.6 m |
| Power | 0.4 kW / 415v |
| Suitable For | Industrial Water Treatment |
| Body Material | PVC |
| Liquid Temperature | Maximum 40°C |
| Inlet Size | Hose Connection (19/27 mm) |
| Outlet Size | Hose Connection (19/27 mm) |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What kind of power supply does this pump require to run?
It connects to 415 V power, with the Grundfos DMX 280-8 driven by an efficient 0.4 kW motor.
Can this pump operate in warm or hot water without overheating?
Thermal ratings for the DMX 280-8 accommodate working liquid temperatures up to 40°C under standard operating pressure.
What maximum vertical water column can this pump maintain?
Pumping performance for the DMX-280-8 provides up to 81.6 m of vertical dynamic lift, depending on system friction and line sizing.
What discharge flow rate does this pump maintain during peak operation?
Moving liquid through the system, the DMX 280 8 maintains an operational throughput of up to 4.67 L/Min during peak demand.
What metallurgy is selected for the pump body to resist abrasive wear?
Built with a resilient PVC body, the DMX/280/8 maintains material durability against fluid abrasion and wear.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us