Overview
Chemical processing plants handle a wide range of corrosive, toxic, and flammable media. Selecting the correct wetted-part materials for a PEECO flow switch is critical to long service life and safe operation. PEECO offers standard stainless steel construction plus Teflon (PTFE) and KYNAR (PVDF) options for highly corrosive applications.
Wetted-Part Material Guide
| Material | Best For | Limitations |
|---|---|---|
| 316 Stainless Steel | Water, steam, mild acids, hydrocarbons | Not suitable for chlorides or strong acids |
| Teflon (PTFE) | Strong acids, caustics, solvents, chlorine | Max 100 PSI / 450°F; N Series only |
| KYNAR (PVDF) | Chlorinated solvents, strong acids | Max 100 PSI / 280°F; N Series only |
| Hastelloy C-276 | Highly oxidizing acids, wet chlorine | Available on request; contact factory |
Hazardous Location Considerations
Most chemical plants have classified areas. The PEECO E Series is explosion-proof (Class I, Division 1, Group D) and is the standard choice for hazardous locations. For extremely high-pressure lines (above 600 PSI), the H Series provides explosion-proof protection up to 10,000 PSI.
Note: Teflon and KYNAR wetted-part options are currently available only on the N Series (non-explosion-proof) housing. For corrosive media in hazardous locations, consult the factory for custom configurations.
Need a material recommendation for your chemical application?
Provide your media, concentration, temperature, and pressure — our engineers will specify the right materials.
Request a Quote