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Barksdale E1H-H90 Pressure Switch 1/4" NPT 3-90 PSI

Special Price $326.68 Regular Price $362.61
In stock
SKU
E1H-H90

The Barksdale E1H-H90 3/90 Pressure Sw 1/4 Inch NPT is a high-quality pressure switch designed for HVAC (Heating, Ventilation, and Air Conditioning) applications. This switch can handle pressures ranging from 3 to 90 pounds per square inch and has a 1/4-inch NPT (National Pipe Thread) connection. It works by sensing changes in pressure and initiating a response, such as turning on or off an HVAC system component, to maintain optimal pressure levels. This pressure switch is widely used in HVAC equipment, such as air compressors, refrigeration units, and hydraulic systems. Its dependable performance ensures efficient operation and helps prevent equipment damage due to pressure fluctuations. The Barksdale E1H-H90 pressure switch provides numerous advantages, including accurate pressure.

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Manufacturer Name: Barksdale
Product Number: E1H-H90
OEM Part Number: E1H-H90
Product Description: 3/90# Pressure Sw 1/4"Npt
Weight:1.41lbs/639.56g

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Customer Questions
What maintenance is required for the Barksdale E1H-H90 Pressure Switch?

Inspect pressure switch ports for debris and ensure the connection is leak-free. Check electrical contacts and wiring for wear or corrosion. Verify calibration within the range to maintain accurate switching and system safety.

What are common issues with the Barksdale E1H-H90 Pressure Switch?

  • Inaccurate switching at set pressure issues.
  • Pressure drift or inconsistent setpoints.
  • Electrical contact wear or failure.
  • Port clogging affecting response.

Installation Steps

Step 1: Disconnect power and depressurize system, ensuring it is fully isolated for safety.

Step 2: Wrap sealant on threads and mount switch securely.

Step 3: Connect electrical wiring per manufacturer diagram, ensuring correct grounding and insulation.

Step 4: Set cut-in/cut-out within range using adjustment screw.

Step 5: Gradually repressurize system and check for leaks.

Step 6: Restore power and test operation under controlled conditions, monitoring pressure response.