L404F1391/U Precision Pressure Switch for Large‑Scale Systems - View 1
Honeywell

L404F1391/U Precision Pressure Switch for Large‑Scale Systems

Precision Pressure Switch for Large‑Scale Systems

Technical Specifications

ParameterSpecification
Product TypePrecision Pressure Switch
Pressure Range5 to 70 psi
DifferentialAdjustable
Switch ActionSPDT snap-acting switch
SensorStainless steel diaphragm
Connection1/4 inch NPT internal thread
Operating Temperature-35°F to 150°F
ApplicationIndustrial pressure monitoring

Notes

Product Overview

The L404F1391/U is a precision pressure switch developed for applications requiring accurate pressure detection and control in large-scale systems. It provides repeatable switching performance and adjustable differential response for steam, air, and fluid pressure systems.

It is ideal for industrial plants, boiler houses, and HVAC systems where stable and reliable pressure monitoring is critical.


Key Features

  • Precision pressure control
  • Adjustable differential for fine tuning
  • SPDT snap-acting switch
  • Stainless steel diaphragm for durability
  • Standard mounting connection
  • Suitable for large-scale industrial systems

Packaging & Delivery

  • Industrial protective packaging
  • Export shipping ready
  • Standard freight and express options
  • Bulk orders available

Frequently Asked Questions (FAQ)

Q: What is this pressure switch used for?
A: Accurate monitoring and switching in large-scale industrial pressure systems.

Q: Can the differential be adjusted?
A: Yes, it features adjustable differential.

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