Models VDMA/VDMF
Sub-compact, aluminium bodied vacuum switches which can be supplied factory set (Models VDMF) within the range shown below, but also have a facility which allows for field adjustment.
- Sub-compact size; body length typically 61mm.
- 1/8” BSP male medium connection.
- Adjustable switching pressure from 0.93 to 0.13 bar vacuum.
- Maximum system pressure 35 bar.
Models PDA/PDF
Miniature series aluminium bodied pressure switches designed specifically for low pressure applications. Operating pressure may be factory set Models PDF) within the range shown below but these switches also have a facility which allows for field adjustment.
- Miniature size; body length 41 mm.
- 1/4” BSP male medium connection.
- Four models for switching pressures from 0.15 to 7 bar.
- Maximum system pressure 25 bar.
Models PDAH/PDFH
Miniature series aluminium bodied pressure switches available for operation within four pressure ranges covering low and medium pressure applications. Switching pressure may be factory set (Models PDFH) but all four ranges have a facility which allows for field adjustment within the range specified.
- Miniature size; body length typically 45 mm.
- 1/8” or 1/4” BSP male medium port.
- Four ranges for working pressure from 0.7 to 170 bar.
- Maximum system pressure 350 bar.
Models HT
These are temperature operated switches designed for direct contact with the system medium. Operation of the microswitch is by fluid expansion and a bellows mechanism.
- Factory set for operation between 27° and 121°C.
- Brass bulb with reinforced nylon body.
- 1/2” & 3/8” BSPF medium connections.
- Maximum system pressure 70 bar.
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