Low pressure cut out devices

[shawn123]

Hi there, just wondering the following for a low pressure cut out device

- description of the low pressure cut out and how it works
- where it is used
- how it operates
- describle its operating limitations
- saftey concerns


And does anyone know what site i can find more info on low pressure cut out devices.

[Admin]

US Patent 6552284 - Water pump low pressure cutoff switch

This might be what you're looking for - Here

[rmuntz]

For hvac application try this site, http://www.icca.invensys.com/ranco/HVACR_press.html
There are a number of different manufacturers and configurations but the principle is the same, they switch an electrical load according to a pressure setting