Description
The Grundfos 91836381 (DMX 100-8 AR-PVC/V/G-S-H1A7A7B) is a Mechanical dosing pumps 115 V, 60 HzV 1-Phase — Diaphragm dosing pumps with external motor. Designed for Plumbing: Water Disinfection, Process liquids transfer, Cooling and 1 more.
Why This Product
Genuine Grundfos Parts and Accessories
Genuine Grundfos replacement parts and accessories are manufactured to the same specifications as the original components — ensuring correct fit, correct function, and maintenance of original pump performance.
OEM Quality — Maintains Warranty Coverage
Using genuine Grundfos replacement parts maintains pump warranty coverage where applicable. Third-party parts may void warranty coverage and can cause performance changes and premature failure.
Compatibility Confirmed
Grundfos accessories and replacement parts are tested for compatibility with specific Grundfos pump models. Part numbers are model-specific — always verify using your pump's model number and serial number.
PumpStop Expert Support
Not sure if this is the right part for your pump? Contact PumpStop with your pump model number and serial number — our team will confirm compatibility before you order.
| Max Operating Pressure | 116.03psi |
| Voltage | 115 V, 60 HzV |
| Phase | 1-Phase |
| Frequency | 60 Hz |
| Protection Class (IP) | IP 65/F |
| Cable / Plug Type | USA, Canada |
| Inlet Connection | 3/4inch |
| Outlet Connection | 3/4inch |
| Model Number | 91836381 |
| Product Series | DMX 100-8 |
| Model Code | DMX 100-8 AR-PVC/V/G-S-H1A7A7B |
| Approvals / Certifications | CE |
| Electrical | Requires correctly rated supply — 115 V, 60 HzV, 1-Phase, 60 Hz. Install with correctly rated circuit protection and motor starter. |
| Temperature limits | Do not exceed max fluid temperature per nameplate. Operating outside these limits will damage seals and motor insulation. |
| Dry running | Do not run dry. DMX 100-8 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 intervals. Contact PumpStop for documentation. |
Motor Curves
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