Peristaltic Hose Pump — Caustics/Bases
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LibertyCES has documented Peristaltic Hose Pump in Caustics/Bases service, including lime slurry, calcium hydroxide and hydrated lime / milk of lime. Wetted materials to confirm: Hose and Barb. Documented models include Graco SoloTech 30 and SoloTech 10. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Materials documented for this service
- Hose: Nitrile, EPDM, natural rubber, CSM/Hypalon
- Barb: 316 stainless steel, Hastelloy-C, PVDF
- Flowline chart, Calcium Hydroxide saturated @ 40°C/104°F: PVC E, PP E, PVDF E, PFA E, PTFE E, 316SS only G
- Flowline chart, Calcium Carbonate saturated: 316SS G at both 40°C and 80°C while all thermoplastics rate E
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| SoloTech 30 spec | 30mm hose, up to 16.0 GPM max @ 91 rpm — the model specified on the California water treatment plant lime slurry job | Allied Fluid Products — Bay Area Fluid Handling & Sealing Distributor |
| Case study results | Clog shutdowns from ~10/year (4-6 hrs each) to zero; hose life 12+ months; labor savings $3,900-$6,500/year | LibertyCES field case study: SoloTech 30: Lime Slurry Pump Solution |
| Flowline chart, Calcium Hydroxide | Saturated at 40°C/104°F: PVC, PP, PVDF, PFA, and PTFE all rate E (Excellent); 316SS rates only G (Good) | Manufacturer documentation on file |
| Flowline chart, Calcium Carbonate | Saturated: 316SS rates G (Good) at both 40°C and 80°C while every thermoplastic in the chart rates E (Excellent) | Manufacturer documentation on file |
SoloTech's mechanism is the fix, not raw pump strength: single roller compressing an engineered hose through 360° of rotation, no valves/seals/glands in the fluid path, reversible to clear blockages without disassembly, self-priming for reliable restarts after a pause.
James Riggins specified this pump on the reasoning that a crystallizing slurry fails on chemistry-mechanics mismatch, not pump strength — the fix is fewer places for the chemical to sit and crystallize, not more force — and the Flowline chart backs that structurally: 316 stainless only rates Good on calcium hydroxide and carbonate while every thermoplastic in the chart rates Excellent, so a metal-wetted pump is the weaker material choice before crystallization mechanics even enter the picture.
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
Can Peristaltic Hose Pump handle Caustics/Bases?
LibertyCES has documented Peristaltic Hose Pump in Caustics/Bases service.
What wetted materials should Peristaltic Hose Pump use in Caustics/Bases service?
Materials documented for this service: Hose: Nitrile, EPDM, natural rubber, CSM/Hypalon, Barb: 316 stainless steel, Hastelloy-C, PVDF, Flowline chart, Calcium Hydroxide saturated @ 40°C/104°F: PVC E, PP E, PVDF E, PFA E, PTFE E, 316SS only G, Flowline chart, Calcium Carbonate saturated: 316SS G at both 40°C and 80°C while all thermoplastics rate E. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Caustics/Bases chemicals does this cover?
Named chemicals in this documentation: lime slurry, calcium hydroxide (Ca(OH)2), hydrated lime / milk of lime, calcium carbonate (CaCO3).
Which Peristaltic Hose Pump models are documented for Caustics/Bases?
Documented examples include Graco SoloTech 30 (30mm hose, 16.0 GPM max @ 91 rpm) — the model specified on the California water treatment plant lime slurry job, SoloTech 10 (10mm, 0.685 GPM @ 92 rpm), SoloTech 23 (23mm, 4.75 GPM @ 94 rpm), SoloTech 26 (26mm, 10.18 GPM @ 93 rpm), SoloTech Peristaltic Industrial: 98 total SKUs across motor type x hose material x barb material; sample real SKUs 19X001, 19X010, 19X018, 19X022, 19X025, 19X026, 19X027, 19X029.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated