Plastic Chemical Seals (PLS Series)
Reotemp’s Model PLS Plastic Chemical Seals provide complete isolation of pressure measurement instruments such as dial pressure gauges, pressure transmitters, and switches from a wide variety of corrosive or ultra pure process fluids. Also know as a Gauge Guard or a Gauge Isolator, the Model PLS features all non-metallic wetted components, offering a robust, durable, and economical solution to pressure measurement applications in Wasterwater, Water Treatment, Chemical Processing, Deslination, and other applications where plastic piping is traditionally used.
Construction Materials
Diaphragm: Teflon (PTFE); Bonded Hypalon
Lower Housing: PVC, CPVC, PVDF (Kynar)
Upper Housing: Glass-Filled Polypropylene
Gasket: EPDM
Stainless Steel Band: 304 SS
Process Temperature Limits
| PVC | CPVC | PVDF |
| 140ºF | 170ºF | 248ºF |
Ambient Temperature Limits
Determined by the Pressure Instrument
Weight
| PVC | CPVC | PVDF |
| 1.0 lbs | 1.2 lbs | 1.3 lbs |
Minimum Recommended Span
| PLS | |
| 2.5” & 3.5” Gauges | 15 psi |
| 4”, 4.5”, & 6” Gauges | 15 psi |
| Transmitter (Gauge Pressure) | 15 psi |
| Transmitter (Differential Pressure) | N/A |
| Differential Pressure Gauge (D40/42 Only) | N/A |