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SKU: 99206039
Grundfos DMX 321-6 Aluminium EPDM 3-Phase Dosing Pump for Cooling Water Treatment 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 321-6 mechanical diaphragm dosing pump from Grundfos. Manual stroke length adjustment from 10-100% yields 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 3 x 415v supply. Dosing flow variation is less than ±1.5% with linearity within ±4% at minimum 1 bar differential pressure. Suction lift capability is 2 metres during operation.
Thermoplastic dosing head construction on the DMX 321-6 incorporates ceramic valve balls and EPDM gaskets. 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
- 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 | 5.35 L/Min |
| Max Head | 61.2 m |
| Power | 0.4 kW / 415v |
| Suitable For | Industrial Processing |
| 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.
How does the wetted material construction prevent chemical attack during industrial processing?
Hydraulic architecture of the DMX 321-6 employs aluminium and PVC with EPDM alongside robust internal components to defend against chemical attack.
How much motor kilowatt power and what electrical voltage feed are required for this mechanism?
Connecting to facility power supplies, the Grundfos DMX 321-6 features an electric drive rated at 0.4 kW (400 W) operating on 415 V.
What working pressure in bar and chemical liquid temperature threshold govern this dosing pump?
Wastewater addition boundaries establish that the DMX-321-6 manages working pressures up to 6 bar across temperatures up to 40°C.
What peak dynamic head elevation can this dosing assembly overcome against process friction?
Producing consistent vertical propulsion, the Grundfos DMX 321 6 delivers a peak dynamic head of approximately 61.2 m.
What peak delivery flow rate in liters per minute does this chemical pump sustain through its outlet?
Operating through its G5/4, the DMX_321_6 delivers a maximum chemical delivery flow volume of approximately 5.35 L/Min (321.0 L/h).
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