Chemical Compatibility
Butterfly Valve — Oxidizers/Disinfectants
Strong evidence
Named chemicals
Dry Chlorine (liquefaction)Sodium Hypochlorite (off-gassing)
What LibertyCES's vendor documentation shows
3-layer EPDM/PVDF/PTFE diaphragm on Asahi's Type-14/57 line engineered specifically to block gas permeation for off-gassing chemicals like NaOCl; Type 800 has a chlorine liquefaction application.
Materials documented for this service
- PVDF gas-barrier layer over EPDM
- PTFE
Products cited for this service
Crane CPE/XOMOX Type 800 (dedicated dry-chlorine-service datasheet)Asahi Type-57 LIS
Sourced to
- crane-cpe-xomox-high-performance-butterfly-valves.md
- asahi-america-metal-replacement-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.