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SKU: 99206064
Grundfos DMX 321-6 Aluminium EPDM 1-Phase Dosing Pump for Chemical Industry with Mechanical Diaphragm
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Water treatment applications requiring higher flow rates are served by the DMX 321-6 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 321-6 delivers 321 L/h maximum dosing capacity at 6 bar pressure, operating at 50 Hz with a 0.40 kW motor on 1 x 240v 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 2 metres.
Ceramic valve balls and EPDM gaskets are incorporated in the DMX 321-6 thermoplastic dosing head. Standard non-return valves are fitted on both connections. The PTFE-coated diaphragm handles liquid temperatures from 0 to 40°C.
Aluminium gear housing with IP65 enclosure protects the DMX 321-6. G5/4 connections accommodate 19/27 and 20/25 mm connections.
FEATURES
- Manual stroke length control with 10:1 turndown ratio
- 0.40 kW motor for increased dosing capacity
- EPDM gaskets for water treatment compatibility
- Standard non-return valves on suction and discharge
- PTFE-coated diaphragm for chemical resistance
- IP65 enclosure for environmental protection
- G5/4 connections for 19/27 and 20/25 mm tubing
SPECIFICATIONS
| Max Flow | 5.35 L/Min |
| Max Head | 61.2 m |
| Power | 0.4 kW / 240v |
| Suitable For | 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 is the maximum water volume this pump can discharge?
Moving liquid through the system, the Grundfos DMX 321-6 maintains an operational throughput of up to 5.35 L/Min during peak demand.
What materials are used to construct the pump casing and impeller?
Built with a resilient PVC body, the DMX 321-6 maintains material durability against fluid abrasion and wear.
What are the power requirements and running amperage for this pump?
Driven by a 0.4 kW motor, the DMX-321-6 functions reliably on 240 V electrical circuits.
What fluid temperature limits and immersion depths are rated for this unit?
Fluid media ranging up to 40°C can be circulated through the DMX 321 6 without thermal breakdown.
What is the maximum vertical lift capacity of this pump?
To overcome vertical elevation resistance, the DMX/321/6 develops a maximum pumping head of approximately 61.2 m.
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