PFA/PTFE-Lined Valve & Sight Glass — Hydrocarbons/Fuels/Oils
Named chemicals
What LibertyCES's vendor documentation shows
The specific finding a fluoropolymer-lined equipment page should lead with: across all six refrigerants in the Flowline chart, PVDF/PFA/PTFE all rate E while 316SS drops to F — the only family in the 552-row chart where stainless is the weakest listed wetted material against an otherwise benign-looking fluid. Same pattern, less severe, on creosote and tall oil. Moderate because no vendor page in the corpus names Freon service directly; the material conclusion is from the chart and the lined products above are the corpus's matching hardware.
Materials documented for this service
- PFA lining
- PTFE
- Borosilicate glass panes to DIN 7080
- Housing EN-JS 1049
- Flowline chart, all six Freons at 40°C/104°F: PVDF E, PFA E, PTFE E — but 316SS only F (Fair)
- Flowline chart: 316SS G on creosote and tall oil at both 40°C and 80°C; F on olive oil at 80°C
Products cited for this service
Sourced to
- data/reference/flowline-chemical-compatibility.csv
- data/vendor-sources/richter-ct-sight-glasses.md
- data/vendor-sources/richter-ct-sliding-stem-valves.md
- data/vendor-sources/crane-cpe-xomox-sleeved-plug-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.