Check Valve — Oxidizers/Disinfectants
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LibertyCES has documented Check Valve in Oxidizers/Disinfectants service, including Chlorine and Sodium Hypochlorite. Wetted materials to confirm: PFA/PTFE and Hastelloy C spring. Documented models include Crane XLC and Hayward IV/IQ Series. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Notes from the vendor documentation
Hastelloy C spring option on Hayward's check valve for aggressive oxidizer service.
Materials documented for this service
- PFA/PTFE
- Hastelloy C spring (option)
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| Crane XLC named chemistry | Chlorine and Bromine both named in the shared 8-chemical reference table across the lined-valve family | Crane ChemPharma & Energy — XOMOX Lined Valves |
| Hayward chemfeed table — Sodium Hypochlorite <20% | EPDM rates B (Good, minor effect), which derates to C once the vendor's own fully-wetted-elastomer rule is applied; PVDF, PTFE, PP, CPVC, PVC, PVC-GF, and Ultem GF 40% all rate A | Hayward Flow Control — Chemfeed Product Solutions Guide |
| Hayward IV/IQ Series check-valve spring option | Built-in ball check with Hastelloy C spring option (IV check rebuildable), FPM O-ring seals, 150 psi @70°F/10 Bar @21°C | Hayward Flow Control — Chemfeed Product Solutions Guide |
A check valve's spring is a real, separate failure point from its wetted body material on oxidizer service — Hayward's IV/IQ Series offers a Hastelloy C spring option specifically because a standard spring alloy can corrode in aggressive oxidizer chemfeed lines even when the body material is correct.
Sodium hypochlorite's EPDM rating on paper reads B, but Hayward's own derate rule for fully-wetted elastomers brings it down to C — the kind of asterisk that separates a supplier reading the whole table from one quoting off the summary line.
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 Check Valve handle Oxidizers/Disinfectants?
Hastelloy C spring option on Hayward's check valve for aggressive oxidizer service.
What wetted materials should Check Valve use in Oxidizers/Disinfectants service?
Materials documented for this service: PFA/PTFE, Hastelloy C spring (option). Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Oxidizers/Disinfectants chemicals does this cover?
Named chemicals in this documentation: Chlorine, Sodium Hypochlorite (chemfeed table).
Which Check Valve models are documented for Oxidizers/Disinfectants?
Documented examples include Crane XLC, Hayward IV/IQ Series.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated