Chemical Compatibility
Ball Valve — Oxidizers/Disinfectants
Strong evidence
Named chemicals
Sodium HypochloriteChlorineBromine
What LibertyCES's vendor documentation shows
Twelfth cross-vendor confirmation (per Hayward's own tracking) of vented-ball/EPDM-derate pattern for sodium hypochlorite off-gassing.
Materials documented for this service
- PVDF/PP/CPVC (Excellent)
- EPDM (derates from B to C when fully exposed)
- 316SS (poor)
Products cited for this service
Hayward TBH-Z (drilled/vented ball)AVCO Chlorine Service Ball ValveAsahi Type-21 vented ball valveCrane XLB
Sourced to
- hayward-flow-control-water-waste-treatment.md
- avco-valve-chemical-processing.md
- asahi-america.md
- crane-cpe-xomox-lined-valves.md
Every material and product claim on this page traces to the vendor documentation listed above. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm current specifications with the manufacturer and request a spec review before final specification.