Butterfly Valve — Oxidizers/Disinfectants
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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
Real Specifications
| Type 800 dry-chlorine documentation | Dedicated datasheet specifically for dry chlorine service (CP-XOMOX-HPBVDRYCHLORINESERVICE), distinct from the general brochure | crane-cpe-xomox-high-performance-butterfly-valves.md |
| Type 800 named industrial branch | Chlorine liquefaction named explicitly among Type 800's industrial branches | crane-cpe-xomox-high-performance-butterfly-valves.md |
| Type-14 diaphragm gas barrier | 3-layer EPDM/PVDF/PTFE diaphragm; PVDF gas barrier standard on all PTFE-diaphragm valves specifically to protect the EPDM backing layer from gas permeation | asahi-america-metal-replacement-valves.md |
A bare EPDM diaphragm exposed directly to an off-gassing chemical like sodium hypochlorite is where the failure starts — Asahi's PVDF gas barrier is standard specifically to stop that permeation from reaching the EPDM backing layer, not an upsell option.
Type 800 having its own dedicated dry-chlorine datasheet, separate from the general brochure, is the real signal — this line is validated for chlorine gas handling, not just marketed for it.
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 Butterfly Valve compatible with Oxidizers/Disinfectants?
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. This is strong evidence.
What materials are documented for Butterfly Valve in Oxidizers/Disinfectants service?
Materials documented for this service: PVDF gas-barrier layer over EPDM, PTFE. 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: Dry Chlorine (liquefaction), Sodium Hypochlorite (off-gassing).
What products are cited for Butterfly Valve in Oxidizers/Disinfectants service?
Documented examples include Crane CPE/XOMOX Type 800 (dedicated dry-chlorine-service datasheet), Asahi Type-57 LIS.
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