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Red Festo pressure regulator in box, model 159581

Festo

Festo LR-1/2-D-MIDI 159581 pressure regulator

SKU CH-QZ78-FQN91 MPN LR-1/2-D-MIDI

Regulates compressed-air pressure to a stable set point for pneumatic systems

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Precise pressure control for pneumatic systems
  • Genuine Festo LR-1/2-D-MIDI quality engineering
  • Ready-to-install regulator in protective box packaging
  • Three-year parts coverage for lasting reliability
  • One-year labor support included with purchase

Pressure regulation for pneumatic systems

The Festo LR-1/2-D-MIDI 159581 is a pressure regulator designed to maintain consistent downstream pressure in compressed air networks. It is built for industrial automation and maintenance professionals who need reliable air preparation. The unit arrives new in a single pack with a red finish. It serves as a core component for controlling actuator force and speed.

Suited for fixed installations with G1/2 connections

This regulator fits pipelines using a G1/2 port size and the MIDI flow series, making it appropriate for medium-capacity pneumatic circuits. It is not intended for portable tools requiring miniature regulators or for high-flow mains supply lines needing a MAXI series body. Buyers without threaded G1/2 ports should look at other connection sizes.

G1/2 port size and MIDI series flow rating

The defining specification is the G1/2 connection combined with the MIDI body size, which together determine the flow capacity and mounting compatibility. Verify that your existing piping and flow demand match this port and series before purchasing. The 159581 part number confirms the exact variant for ordering.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $104.99
Typical for this category: the median of 5,006 items is $95.99.

Specifications

Product
Brand nameFESTO
Model nameLR-1/2-D-MIDI
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What pressure range does the LR-1/2-D-MIDI regulator handle?

The LR-1/2-D-MIDI 159581 regulates compressed air pressure within the standard MIDI series operating range for pneumatic systems.

What thread size and mounting style does the LR-1/2-D-MIDI use?

The regulator features a G1/2 port thread and can be mounted directly in-line or via the optional bracket for panel installation.

How is the LR-1/2-D-MIDI installed and what step is often missed?

Install by threading into the air line with flow direction arrows aligned, then set pressure by pulling the knob up, adjusting, and pushing down to lock.

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