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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 motor kilowatt power rating and electrical supply voltage drive this precision pump?
Motor drive parameters on the DMX 280-8 require 415 V to power an electric motor rated at 0.4 kW (400 W).
What maximum working pressure in bar and process fluid temperature threshold apply to this unit?
Industrial transfer duty on the Grundfos DMX 280-8 supports operational pressures up to 8 bar managing liquid temperatures up to 40°C.
What maximum dynamic head elevation does this chemical transfer unit attain?
Overcoming elevation resistance across discharge lines, the DMX-280-8 provides a peak dynamic head of approximately 81.6 m.
What maximum volumetric delivery flow rate does this high throughput unit achieve?
Connecting into chemical lines via G5/4, the Grundfos DMX 280 8 provides a peak delivery flow of approximately 4.67 L/Min (280.0 L/h).
What casing material and wetted diaphragm construction protect this unit from corrosive reagents?
Chemical resilience on the DMX_280_8 is governed by high-purity aluminium and PVC with EPDM wetted parts, facilitating safe containment without material deterioration.
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