• Barksdale Series D1T Terminal Block Diaphragm Pressure Switch, Housed, Single Setpoint, 0.4 to 18 PSI, HD1T-AA18SS

Barksdale Series D1T Terminal Block Diaphragm Pressure Switch, Housed, Single Setpoint, 0.4 to 18 PSI, HD1T-AA18SS

This item has been discontinued by the manufacturer. Contact FLW for current pricing and availability.

Are you buying in volume? Are you an OEM? Are you a reseller? Be sure to contact FLW directly for your special pricing.  
Shipping Weight:
2.00 LBS


Barksdale's Diaphragm Pressure Switches offer superior accuracy in a robust package, making them the ideal solution to your industrial pressure control needs. Diaphragm switches are ideal for applications demanding instrument class accuracy and where pressure pulsations are less than 25 cycles per minute. Available in various pressure ranges up to 150 psi, diaphragm switches are suitable for use in either positive pressure or vacuum applications. Single, and dual, and triple circuit models are available. Housed models (D1H & D2H) feature a durable, anodized aluminum enclosure with an integrated 1/2" NPT conduit connector, a tamper-resistant cover for the setpoint adjustment screws, and are rated to NEMA 4 as a standard. For applications requiring a highly accurate switch in a durable package, Barksdale's Diaphragm Pressure Switches are the ideal choice.

  • Stripped and housed versions available
  • High accuracy
  • Ideal for pressure or vacuum
  • Easy setpoint adjustment
  • NEMA 4 (Housed Models)
  • Up to 3 setpoints available in one switch
  • Diaphragm Seal Option Available

  • Pump & compressor monitoring
  • Engine monitoring
  • Machine tools
  • Hydraulic power units
  • Medical equipment
  • Waste management
  • Food & beverage
  • Factory automation
  • Metal working

Product Specifications

General Specifications

Accuracy:± 0.5% of the adjustable range
Electrical Connection:Terminal block through 1/2" NPT conduit connector
Adjustable Range (PRESSURE)
Decreasing - psi (bar)Increasing - psi (bar)
.4 (.03)17.74 (1.2).66 (.05)18 (1.2)
Adjustable Range (VACUUM)
Decreasing - psi (bar)Increasing - psi (bar)
Type:Single pole double throw (SPDT)
Single setpoint housed with terminal block
Hermetically sealed limit switch option - Class I, Division II
Rating:4 amps @ 125/250 VAC
Wetted Parts
Process Fitting:316 stainless steel
Enclosure:Anodized aluminum
Pressure Connection:Std 1/4" NPT female pressure connection

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