Dwyer DA-7035-153-3 is a Bourdon Tube Pressure Switch designed for use in general purpose, weatherproof, or explosion-proof environments. It offers a temperature rating of up to 180°F (82°C) and has a vertical mounting orientation. The wetted materials include Brass, 403 SS, or 316 SS. The switch type is available in SPST mercury switch, SPDT mercury switch, or SPDT snap switch. The set point adjustment is easily done with a thumbscrew. Electrical connections are made through screw terminals and the process connection is available in 1/4" or 1/2" male NPT for general purpose and weatherproof applications, and 1/2" male NPT and 1/4" female NPT for explosion-proof applications. The repeatability is ±1% of the full operating range or ±1.5% on DS-7300 models. The enclosure rating is general purpose, weatherproof, or explosion-proof, depending on the chosen model.

Specifications

Component	Pressure Switch
(Instrument-Sensor) Type	Bourdon Tube
(Instrument-Sensor) Temperature Range	180°F/82°C
Manufacturer	Dwyer Instruments

Features

Visible calibrated dial provides an easy and fast check without having to open device causing dangerous conditions to operators

On/off indication (except hermetically sealed snap switch models) gives operator clear indication of state of switched equipment that could be located in another location

Adjustable or fixed deadband supports control applications by reducing equipment wear-out by unnecessary recycling

External switch set point adjustment reduces set-up time

Pressure ranges of full vacuum to 8000 psig gives application designers the ability to specify standard equipment, simplifying install and training, and reducing servicing costs

UL listed, CSA approved, many models FM approved to support rigorous process applications and regulations

General purpose, weatherproof or explosion-proof enclosures for a variety of indoor or outdoor environments meeting the needs of multiple applications and uses

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