Diaphragm Pump for Municipal Wastewater
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Yes. LibertyCES has documented Diaphragm Pump in Municipal Wastewater applications, including Graco QUANTM/ChemSafe. The right model depends on the fluid, concentration, temperature, flow and duty cycle, so send James your process data for a free spec review before final selection.
Notes from the vendor documentation
Case study specifies chemical metering pumps for wastewater pretreatment neutralization.
Products cited in this application
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| QUANTM i30 flow/pressure | 30 GPM (114 lpm) at up to 100 psi, runs on 120V or 380/480V | Graco — Diaphragm Pumps |
| QUANTM efficiency claim | Up to 80% more efficient than AODD, up to 50% more efficient than competing electric pump technology | Graco — Diaphragm Pumps |
| Case study equipment stack | 4,500-gal double-wall polyethylene holding tank, non-contact radar level sensor, inline pH sensor, and a Dialog X PLC controller | LibertyCES field case study: Automated Wastewater pH Treatment System |
| Case study result | Inflow pH 3.3 brought to a consistent 5.5-6.5 compliant range, fully automated, zero manual sampling | LibertyCES field case study: Automated Wastewater pH Treatment System |
QUANTM's electric diaphragm design is self-priming and seal-less by construction — removing the mechanical-seal failure point a centrifugal transfer pump would introduce on a wastewater neutralization dosing loop.
A wastewater pretreatment neutralization loop lives or dies on dosing accuracy, not raw flow — QUANTM's stall-under-pressure behavior removes the need for a separate pressure-relief controller, which is why it paired cleanly with the closed-loop PLC dosing architecture specified on this job.
Every claim on this page traces to real, vendor-published documentation on file with LibertyCES. Confirm current specifications with the manufacturer before final specification.
Related Guides
FAQ
How is Diaphragm Pump used in Municipal Wastewater?
Case study specifies chemical metering pumps for wastewater pretreatment neutralization.
Which Diaphragm Pump models are specified for Municipal Wastewater?
Documented models include Graco QUANTM/ChemSafe. Confirm current specifications with the manufacturer before final selection.
What does LibertyCES need to size Diaphragm Pump for a Municipal Wastewater application?
The fluid and its concentration, operating temperature, flow or volume, pressure and suction conditions, duty cycle, and the existing equipment it replaces or connects to. James reviews it for free.
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Send James your spec
Fluid, concentration, temperature, flow or volume, and where it goes. James replies with a real answer, not a catalog page.
Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated