Ferric Chloride — Equipment Material Selection Data

Name: Ferric Chloride Equipment Material Selection Dataset
Creator: James Riggins

Direct answer: This page collects every published row in the LibertyCES datasets that applies to ferric chloride service: elastomer seal compatibility, centrifugal pump material resistance, peristaltic tube compatibility, engineering rules. The Flowline compatibility chart used for the PVC/PP/PVDF/PFA/PTFE/316 SS table elsewhere on this site does not list ferric chloride, so no such table is shown here. Ratings below come from the seal, pump, and peristaltic-tube datasets, which do. LibertyCES supplies the equipment for handling these fluids, never the fluid itself.

Elastomer Seal Material Compatibility

Centrifugal Pump Wetted-End Material — Max Temperature (°F)

Peristaltic Pump Tube Compatibility

Engineering Rules That Apply

Dataset entry	FFKM	FKM-ETP	TFE/P	FKM	HNBR
FERRIC CHLORIDE	Good	Good	Good	Good	Good

Dataset entry	Sp. Gr.	CPVC	Glass-Filled PP	PVDF	Ryton PPS	ETFE	PTFE	316 SS	Hastelloy C-276	Titanium	Carbon	Ceramic	Silicon Carbide	EPDM	FKM	FEP
Ferric Chloride	—	180	180	275	200	300	500	NR	175	200	340	500	500	225	212	300

Dataset entry	Flex-A-Prene®	Flex-A-Chem®	Flex-A-Thane®
Ferric Chloride, 43% in w	Excellent	Excellent	Excellent

Ferric Chloride Sulfate Frp Incompatible

Poly Processing's own literature (chemical-storage ferrics page, blog, and Tank_Specs.pdf) explicitly warns FRP is NOT suitable for ferric chloride — it acts as an etching medium on FRP resin — a real differentiator against generic FRP marketing that treats it as a universal corrosion-resistant material. Published concentration limits: Ferric Chloride <=50%, Ferric Sulfate <=60% (also lists Ferrous Chloride and Ferrous Sulfate as compatible at similar limits). Recommended system: XLPE resin, specific gravity 1.65 rating, PVC fittings, EPDM gaskets, titanium bolts, IMFO (true-bottom drain handles settling/sludge), heat pads/insulation (ferrics often delivered at elevated temperature, testing tank expansion/contraction), mixing system (prevents separation), scrubber if vented outdoors (ferric fumes can defoliate surrounding vegetation). On the pump/metering side, Grundfos's own SMART Digital / DDA chemical-resistance table lists ferric chloride and ferric sulfate as dosable at SATURATED concentration with PP dosing heads and FKM (Viton) gaskets, including a 'Slow Mode' specifically for high-viscosity coagulants. March Pump's own application page names 13 specific mag-drive sealless centrifugal models rated for ferric chloride transfer/recirculation duty (PP for smaller models, Kynar/PVDF and Ryton for larger) — a distinct equipment category (transfer, not metering) from the Grundfos/ProMinent dosing-pump slot.

Confidence: confirmed. Source: data/vendor-sources/poly-processing-chemical-storage.md.

Ferrics Alums Polymers Need Heat Mixing Scrubber

Ferrics, alums, and polymers present separation/settling/coagulation issues that are compounded by temperature variations; settling causes pumping difficulty; these chemicals are often delivered at elevated temperature (testing tank expansion/contraction); ferric fumes can defoliate surrounding vegetation; and polymers can act as an environmental stress-cracking agent. IMFO's true-bottom drain aids sludge control and cleaning ease.

Confidence: confirmed. Source: vendor-sources/poly-processing-chemical-storage.md.

Equipment LibertyCES Supplies

LibertyCES specifies and supplies the pumps, valves, tanks, piping, and instrumentation that store, transfer, meter, and contain fluids like ferric chloride — never the fluid itself, always the equipment engineered to handle it.

Reviewed by James Riggins, Founder, LibertyCES — 30+ years specifying industrial fluid-handling equipment. Request a free spec review →

This data is a screening reference, not a final engineering approval; confirm with a manufacturer-specific data sheet before specifying equipment. Blank or "No data" entries mean no rating was published — treat as unknown, not safe.

Frequently Asked Questions

Does LibertyCES sell ferric chloride?

No. LibertyCES supplies the equipment that stores, transfers, meters, and controls fluids like ferric chloride (pumps, valves, tanks, piping, instrumentation). It does not supply the fluid itself.

Which engineering rules apply to ferric chloride service?

Published rules on this page: Ferric Chloride Sulfate Frp Incompatible; Ferrics Alums Polymers Need Heat Mixing Scrubber. Each links to its full rule page with confidence rating and source.

Is this data a final material approval for ferric chloride?

No. It is a screening reference compiled from published vendor data and LibertyCES field rules. Ratings depend on concentration and temperature; confirm against the manufacturer data sheet and your actual duty point, or request a free spec review.