Metering Pump — Acids
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Named chemicals
What LibertyCES's vendor documentation shows
Dosatron explicitly markets phosphoric/nitric acid injection; Griffco sulfuric-acid material bulletin applies to metering-pump accessories (injection valves/quills).
Materials documented for this service
- PVDF
- Halar/ECTFE
- PTFE
- Alloy 20 (accessory-level)
Products cited for this service
Real Specifications
| Griffco sulfuric acid material table | Noryl max 95% @200°F; PVDF max 95% @175°F; Halar (ECTFE) 100% @200°F; PTFE (one-piece flanged) 100% @200°F; Alloy 20 100% @300°F | griffco-valve.md |
| Griffco 98.3%+ sulfuric acid failure threshold | At 98.3%+ concentration, sulfuric acid carries dissolved sulfur trioxide (SO3) that attacks and causes stress fractures in both PVDF and Noryl | griffco-valve.md |
| Dosatron D14T acid CIP spec | 0.5-1.5% phosphoric or nitric acid at 140-160°F, dissolves milkstone/beerstone/scale deposits | dosatron.md |
| Dosatron D14T thermal/material spec | Max water temp 158°F, high-temp elastomers, metal-free wetted path on key versions | dosatron.md |
Griffco's own bulletin flags a real, distinct failure mode: PTFE's acid compatibility only holds in one-piece flanged construction — threaded PTFE connections are prone to leak from cold flow, a recurring cross-vendor failure pattern, not a one-off defect.
Sulfuric acid above 98.3% concentration isn't just "stronger acid" — Griffco's own bulletin shows it carries dissolved SO3 that stress-fractures both PVDF and Noryl, materials that hold up fine below that threshold; the real spec question on a concentrated-sulfuric metering line is exact concentration, not just "is it acid-resistant."
Every material and product claim on this page traces to real, vendor-published documentation on file with LibertyCES. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm current specifications with the manufacturer and request a spec review before final specification.
FAQ
Is Metering Pump compatible with Acids?
Dosatron explicitly markets phosphoric/nitric acid injection; Griffco sulfuric-acid material bulletin applies to metering-pump accessories (injection valves/quills). This is moderate evidence.
What materials are documented for Metering Pump in Acids service?
Materials documented for this service: PVDF, Halar/ECTFE, PTFE, Alloy 20 (accessory-level). Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm with a spec review before final specification.
What specific Acids chemicals does this cover?
Named chemicals in this documentation: Phosphoric Acid, Nitric Acid, Sulfuric Acid, Citric Acid (CIP).
What products are cited for Metering Pump in Acids service?
Documented examples include Dosatron D14T/D132/D400, Griffco injection valve/quill (accessory).
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].