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Pressure switch Siemens QBE 1900-P7 for liquids and gases. More information
Delivery to Belgium (days are avarages)
DHL Express: 1.2 workdays, € 16,94
| Connection size | DN 15 |
| Connection Type | External thread |
| IP Rating | IP 33 |
| Pressure range | -0.3...7 bar |
| Weight | 0.42 kg |
Catalog list eng download
Download PDFPressure switch for gases and liquids for mechanical pressure measurement in HVAC systems. It serves to protect against excessively low or high pressure, but it can also be used for switching compressors and fans.
The switch is designed for gaseous and liquid media. It can be used for fluorinated, non-aggressive refrigerants and lubricating oils.
The switch features an automatic reset and allows the setting of the switching point and switching differential. This is facilitated by a scale under a transparent cover, which needs to be removed for adjustment.
The switch can be combined with all devices or systems that can process the output signal from the switch.
The switch should be placed on the side near the bottom of the pipe. Pressure should not be measured on the top side of the pipe, where there is a risk of misinterpreting pressure values due to air pockets, nor directly at the bottom of the pipe, where measurement may be affected by impurities.
The switch should be placed on the top side, where it will not come into contact with condensate.
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