Pressure Ranges
0-0.075 to 0-4 bar
0-1 to 0-60 psi
In the Flameproof Model PR 20, the movement of the diaphragm, and hence the movement of the piston magnet is converted into appropriate calibrated rotary movement of the pointer through a magnetic connection. This type of diaphragm model is used in applications where no migration of the media from high pressure side (HP) to low pressure side (LP) is permitted.
Approval: Model PR 20 is Ex d IIC T6 IP66 approved.
| Accuracy | ±2% of the FSD (Ascending) |
| Migration | Minor from high to low port |
| Range | 0-0.075 to 0-4 bar 0-1 to 0-60 psi |
| First marking on scale | 20% of the FSD |
| Sensing element | Diaphragm |
| Wetted Parts | Body material, SS 302 spring, ceramic magnet & seals |
| Case Material | Stainless steel (SS 304) |
| Dial size | Inch: 4.5, 6.0 mm: 115, 150 |
| Mounting | Direct or 2” horizontal / vertical pipe mounting bracket |
| Maximum working pressure | 100 bar/ 1500psi |
| Maximum process temperature | 80°C/ 175°F |
| Body material | SS316 attached to flameproof aluminum enclosure |
| Seals | Buna-N, Viton & EPDM ‘O’ Rings |
| Window | Standard: Float glass Optional: Toughened glass, acrylic & safety glass |
| Connection | Standard: ¼” NPT(F) Optional: ¼” BSP (F) |
| Porting | In-line |
| Over range protection | Up to the max. working pressure from high & low side |
| Protection for gauge & switch | IP 66 / NEMA-4 |
| Electrical connection | ½” NPT (F) for 2 conduit ports at bottom, left and right 40 degrees from center line |
| Weight | Approximately 2.5kg |
DE