P250 Pressure Switch w / Overpressure Protection
Company Name : Wasco
Activation Point Range:
- 1.0 – 100 PSI
Burst Pressure:
- 6,000 PSI
Temperature Range:
- -65° F to + 225° F
Leak Rate:
- ≤1.0 x 10-3 cc/min Air
Weight:
- 5 oz (typical with 12 inch “W3” electrical interface)
Electrical Rating :
| Max. Amp Rating | 1 | 5 | 7 |
|---|---|---|---|
| Volts AC/DC | 115/28 | 250/28 | 250/28 |
| Inductive | |||
| Amp Resistive | 1/1 | 5/5 | 7/7 |
| Amp Material | 1/0.5 | 5/3 | 7/4 |
| Contact | Gold | Silver | Silver |
Technical Specifications
Material Specifications P250:
Wetted
| Diaphragm | Kapton® or Stainless Steel |
| Fitting | 300 Series Stainless Steel |
| O-Ring | Buna N, other compounds available |
| Screw | 300 Series Stainless Steel |
| Washer | 300 Series Stainless Steel |
Material Specifications P250:
Non Wetted
| Adjusting Nut | Steel |
| Body | 300 Series Stainless Steel |
| Electrical Interface | Steel (zinc chromate finish) |
| Locking Compound | Loctite 277 |
Pressure Switch Adjustment (if field adjustable)
A change in the activation may be made by turning the adjusting ring located in the opening in the side of the body. Causing the ring to turn left will raise the activation point, and turning it right will lower it. For the best results after resetting the switch, cycle the system pressure level several times to stabilize the new activation point. Repeat preceding adjustment instructions if necessary.