Barksdale D2H-H18SS Diaphragm Pressure Switch 60 Psi

Product Description

The BARKSDALE D2H-H18SS is a diaphragm-style pressure switch designed for precise pressure sensing in industrial and commercial fluid or gas systems. It features dual SPDT contacts with a maximum pressure setting of 60 psi and a repeatability rating of 0.5%, making it well suited for applications where consistent switching points are critical. The wetted components are constructed from 304 stainless steel for corrosion resistance. The switch connects via an 18-inch free lead wire and mounts through a 1/4-inch NPTF threaded port. Licensed electricians and instrumentation technicians are the typical installers for this type of switching device.

The D2H-H18SS is appropriate for use in industrial process control, HVAC pressure monitoring, hydraulic systems, and compressed air applications where dual switching output is required. The dual SPDT contact form allows two independent circuits to be switched simultaneously at the same pressure setpoint. Its operating temperature range of -40 degrees F to 165 degrees F makes it suitable for both cold and moderately elevated temperature environments. This switch is intended for professional installation in systems requiring reliable, repeatable pressure actuation.

Key Features

• Dual SPDT contact form provides two independent switched circuits from a single pressure event
• 0.5% repeatability rating supports consistent and reliable switching performance
• 304 stainless steel wetted materials resist corrosion in demanding fluid and gas media
• 18-inch free leads simplify field wiring without the need for conduit fittings at the switch body
• Wide operating temperature range from -40 degrees F to 165 degrees F
• 1/4-inch NPTF threaded port for secure, leak-resistant installation

Compatibility

Designed as an OEM-style diaphragm pressure switch replacement for industrial process, HVAC, hydraulic, and compressed air systems requiring a 1/4-inch NPTF threaded connection and dual SPDT output.

Installation Notes

Installation should be performed by a qualified electrician or instrumentation technician in accordance with NEC requirements and applicable local codes. De-energize all electrical circuits and depressurize the system fully before removing or installing the switch. Thread the switch into the NPTF port carefully to avoid cross-threading and verify there are no pressure leaks before restoring system pressure. Do not exceed the rated amperage limits for the voltage being switched.