Barksdale 9048-4 Sealed Piston Pressure Switch 240-3000 Psi

Product Description

The BARKSDALE 9048-4 is a sealed piston pressure switch designed for industrial and commercial fluid systems requiring reliable pressure monitoring across a wide range. It operates over an adjustable setpoint range of 240 psi to 3000 psi on rise, with a minimum deadband of 40 psi and a maximum deadband of 250 psi. The switch features an SPDT contact form with screw terminal electrical connections, rated at 10 amps at 125/250/480 volts AC and 0.03 amps at 250 volts DC. The wetted components are 416 stainless steel, and the housing is aluminum. Licensed HVAC technicians, pipefitters, and industrial controls electricians are the typical installers for this type of device.

This pressure switch is suited for hydraulic, pneumatic, and process piping systems where accurate, repeatable pressure control is required. It connects via a 1/4 inch female NPTF thread and supports both normally open and normally closed starting positions, allowing flexible integration into control circuits. The 2% repeatability rating makes it appropriate for applications demanding consistent switching performance across a broad pressure range and temperature window of -40 degrees F to 165 degrees F.

Key Features

• Adjustable setpoint range: 240 psi to 3000 psi on rise, 200 psi to 2825 psi on fall
• SPDT contact form with both normally open and normally closed configurations available
• 416 stainless steel wetted material for corrosion resistance in demanding media
• Screw terminal electrical connections rated up to 480 volts AC and 250 volts DC
• 2% repeatability for consistent, dependable switching performance
• CSA and UL listed; meets CSA Class 3231 02 standards

Compatibility

Designed as an OEM-style sealed piston pressure switch for industrial and commercial fluid control systems requiring a 1/4 inch NPTF female threaded connection and SPDT switching output.

Installation Notes

Installation should be performed by a licensed electrician or qualified controls technician. De-energize all electrical circuits and depressurize the system completely before connecting or disconnecting the switch. Ensure the process fluid and pressure range are compatible with 416 stainless steel wetted surfaces and the aluminum housing before installation. Follow all applicable NEC requirements for electrical connections and local codes governing pressure system service.