Dwyer Instruments duct pressure switches are used for providing electrical feedback at a specific differential pressure point and feature dual-scale adjustment knobs for switching the pressure instantly, thereby eliminating the additional need for a pressure gauge. They come equipped with a silicone diaphragm for positive sealing and PA 6.6 construction providing strength and stiffness, as well as impact, heat and chemical resistance. These units are ideal for use with air and other non-combustible gases in HVAC systems and are available in pressure adjustment settings ranging from 20 Pa to 5000 Pa on Raptor Supplies, an authorised Dwyer Instruments distributor.
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