Dwyer Series A3000 Pressure Switch/Gage: Measures and controls positive, negative or differential pressures of air and compatible gases. GAGE SPECIFICATIONS Service: Air and non-combustible, compatible gases.
Being auctioned is a new in the box pressure switch by United Electric Controls. This switch was surplus to an aerospace company. The switch is a Spectra 12 Series pressure switch part # 12SLSN8D with options M201 and M446.
Series 1640 Floating Contact Null Switch for High and Low Actuation Visual Set Point Adjustment...Adjustable Null Zone The unique electric switch design in the 1640 is another Dwyer Instruments, Inc. innovation. The Dwyer Model 1640 Differential Pressure Switch resembles the Series 1630 switches described on the previous page.
These are the same as the SS-4-A-4RS, but they have been prepared with Swagelok's high purity cleaning process, described in the bulletin: Special Cleaning and Packaging (SC-11) Specification SCS-00011 Revision A. They are still sealed in the factory plastic. Listing price is for one box of 15 adapters.
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