Description
The Grundfos 99773194 (DMX 321-6 B-PP/T/T-X-E1U3U3XEMAG) is a Mechanical Dosing Pump. Diaphragm dosing pump for chemical dosing in water treatment and industrial processes. Rated 230/400V, 3-Phase, 50 Hz. Applications include Plumbing: Water Disinfection, Process liquids transfer, Cooling and more.
Genuine Grundfos Part
OEM component engineered and manufactured to Grundfos specifications. Maintains pump performance and warranty coverage.
Full Traceability
Genuine Grundfos parts carry manufacturer traceability from production through delivery. No counterfeit risk.
Authorized Source
PumpStop is an authorized Grundfos distributor. All parts are genuine — not aftermarket, not surplus.
Confirm Compatibility
Always verify part number against your pump model number and serial number before ordering. Contact PumpStop for parts identification assistance.
Technical Support Available
PumpStop technical team can identify correct parts from pump nameplate data, serial number, or model code. Call (781) 281-8905 or chat.
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Parts availability varies. Contact PumpStop to confirm stock, lead time, and pricing before placing an order.
| Model Number | 99773194 |
| Product Series | DMX |
| Series Description | Mechanical Dosing Pump |
| Voltage | 230/400V |
| Phase | 3-Phase |
| Frequency | 50 Hz |
| Protection Class (IP) | IP65 |
| Max Operating Pressure | 87.02psi |
| Max Fluid Temperature | 104°F |
| Inlet Connection | 19/27, 20/25 |
| Outlet Connection | 19/27, 20/25 |
| Housing Material | Aluminum |
| Approvals / Certifications | CE, EAC, CNROHSEX |
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 230/400V, 3-Phase, 50 Hz. |
| Temperature limits | Do not exceed max fluid temperature 104°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. DMX pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations. |
| Maintenance | Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation. |
- EAN
- 5713834061820
- Applications
- Dosing & Disinfection
- Approvals
- CE
- Cable included (Yes/No)
- N
- Connection
- 19/27
- Control variant
- Standard
- Density
- 62.29 lb/ft³
- Enclosure class (IEC 34-5)
- IP65
- Frequency converter
- Not prepared for VFD
- Gasket
- PTFE
- Gross weight
- 66.7 lb
- Housing
- Aluminium
- Liquid temperature range
- 32 .. 104 °F
- Mains frequency
- 50 Hz
- Material Pricing Group
- 62
- Max. frequency
- 50 Hz
- Maximum permissible inlet pressure
- 0 bar
- Net weight
- 41.9 lb
- Nominal flow rate at 50 Hz
- 321 l/h
- Non return valve type, inlet pump 1
- Standard
- Number of dosing heads
- 1
- Power 1
- 0.4 kW
- Power input P1
- 0.4 kW
- Power plug
- No plug
- Product family
- DMX
- Pump housing
- Aluminium
- Pumped liquid
- Water
- Rated voltage
- 3 x 230/400 V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Selected liquid temperature
- 68 °F
- Size of inlet connection
- 19/27, 20/25
- Size of outlet connection
- 19/27, 20/25
- Type of inlet connection
- Connection pack
- Type of outlet connection
- Connection pack
- Valve ball
- Composite
Dimensional Drawing
DMX Pre-selected range (Quick Guide)
OPTIMIZED INDUSTRIAL SOLUTIONS (Product brochure)
DMX 221, Dosing pump (Installation and operating instructions)
DMX 226, Dosing pump (Installation and operating instructions)
Servomotors (Installation and operating instructions)
AR control unit (Installation and operating instruction)
Dosing & Disinfection (Service Kit Catalogue)
GRUNDFOS DMX, Mechanical Diaphragm Dosing Pumps (Leaflet)
Type examination certificate ATEX DMX-DMH (until end of 2013) (Certificate)