Check Valve — Oxidizers/Disinfectants
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What LibertyCES's vendor documentation shows
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
| Crane XLC named chemistry | Chlorine and Bromine both named in the shared 8-chemical reference table across the lined-valve family | crane-cpe-xomox-lined-valves.md |
| 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.md |
| 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.md |
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
Is Check Valve compatible with Oxidizers/Disinfectants?
Hastelloy C spring option on Hayward's check valve for aggressive oxidizer service. This is moderate evidence.
What materials are documented for Check Valve in Oxidizers/Disinfectants service?
Materials documented for this service: PFA/PTFE, Hastelloy C spring (option). Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm with a spec review before final specification.
What specific Oxidizers/Disinfectants chemicals does this cover?
Named chemicals in this documentation: Chlorine, Sodium Hypochlorite (chemfeed table).
What products are cited for Check Valve in Oxidizers/Disinfectants service?
Documented examples include Crane XLC, Hayward IV/IQ Series.
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