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Differential Pressure Gauges
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These gauges are designed to have the two pressures directly opposed either side of a spring diaphragm. Movement of the diaphragm, due to difference in pressure, is transmitted through low friction seals to the indicator mechanism. Ranges are available in 80mm, 100mm and 150mm sizes. Differential pressure gauges can be supplied with square root scales to indicate flow when connected across orifice plates in pipes.
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Low Pressure Differential Gauges
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- TYPE 95: Front flange 3-hole fixing
- TYPE 96: Front flange clamp fixing
- TYPE 97: Wall mounting option
- 100mm & 150mm diameters
- Pressure ranges up to 160 mbar / max line pressure 7 bar
- Pressure ranges up to 400 mbar / max line pressure 34 bar
- ±2% full scale deflection accuracy
- Optional centre zero
- Choice of process connections
- Optional stainless steel wetted parts available
- Optional all stainless steel construction - TYPE 96S & TYPE 97S only
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Differential Pressure Gauges
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- TYPE 91: Front flange 3-hole fixing
- TYPE 92: Front flange clamp fixing
- TYPE 93: Wall mounting option
- 80mm, 100mm & 150mm diameters
- Pressure ranges up to 11 bar / max line pressure 34 bar
- ±1½% full scale deflection accuracy
- Optional overload protection up to 34 bar
- Optional centre zero
- Choice of process connections
- Optional weather proof construction - TYPE 92W & TYPE 93W only
- Optional stainless steel wetted parts available
- Optional all stainless steel construction - TYPE 92S & TYPE 93S only
- Optional glycerine filled
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Differential Pressure Gauge & Switch
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Changes in differential pressure indicated by a differential pressure gauge are only apparent if an operator is available to look at the instrument. An automatic warning signal on high or low conditions can be provided by a Bailey & Mackey differential pressure switch.
- Maximum line pressure 34 bar
- ±1½% of full scale deflection accuracy
- Optional stainless steel wetted parts available with viton or Ethylene Propylene seals
- SPDT microswitch rated at 5 amps at 250 V AC single phase
- Can be built with two optional microswitches to offer two circuits with independently adjustable set points
- Optional microswitch suitable for 15 amps at 250 V AC can be fitted
- A mechanism for increasing the pressure difference between operation and reset can be fitted for control applications
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