Media in Contact with Electrical Contacts

Note that the pressure media entering through Port A is in direct contact with the electrical contacts in the switch, whereas the pressure media entering through Port B is separated from the electrical contacts by the diaphragm.

Note: The EPDM diaphragm should not be used with petroleum products. Specify Nitrile for these applications.

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Omega PSW20 installation instructions Media in Contact with Electrical Contacts