Barksdale D2T-H18SS Diaphragm Pressure Switch 60 Psi Nptf

Product Description

The BARKSDALE D2T-H18SS is a diaphragm-style pressure switch designed for industrial and commercial pressure monitoring applications. It features dual SPDT contacts and a 1/4-inch NPTF threaded process connection. The wetted components are constructed from 304 stainless steel, making it suitable for use with mildly corrosive media. The switch handles a maximum pressure setting of 60 psi and carries a repeatability rating of 0.5 percent. Electrical ratings are 10 amps at 125/250 Vac and 3 amps at 480 Vac. Licensed HVAC technicians, industrial mechanics, and instrumentation specialists typically install this switch in pressure-sensing and control circuits.

The D2T-H18SS is used in residential and commercial HVAC systems, hydraulic circuits, pneumatic control panels, and fluid handling equipment where reliable pressure-activated switching is required. Its stainless steel wetted path makes it appropriate for water, oil, and mild chemical service. The dual SPDT contact configuration supports both normally open and normally closed circuit arrangements in a single device, offering flexibility in control wiring layouts without adding additional switching hardware.

Key Features

• Dual SPDT contact form allows simultaneous NO and NC switching from a single pressure event
• 304 stainless steel wetted material for corrosion resistance in fluid and gas service
• 0.5 percent repeatability for consistent setpoint actuation across operating cycles
• Maximum pressure setting of 60 psi with a narrow deadband range of 0.12 to 0.26 psi
• Wide temperature range from -40 degrees F to 165 degrees F
• Screw terminal electrical connections for straightforward field wiring

Compatibility

Designed as an OEM-style diaphragm pressure switch for industrial and commercial control systems requiring a 1/4-inch NPTF process connection and dual SPDT switching logic.

Installation Notes

Installation should be performed by a qualified electrician or instrumentation technician familiar with low-voltage control wiring and applicable NEC guidelines. De-energize the circuit and relieve all system pressure before installing or removing the switch. Ensure the process connection is leak-free using appropriate thread sealant rated for the media in service. Do not exceed the rated pressure or temperature limits marked on the device.