LFR-1/4-D-MINI

Product information

Product Overview

The LFR is Festo’s combined filter regulator — the service unit that filters the compressed air and regulates its pressure in one body. Festo builds it in micro, mini, midi and maxi sizes with two pressure-gauge connections for different installation options, a lockable rotary knob and a choice of manual, semi-automatic or fully automatic condensate drain.

This page covers LFR-1/4-D-MINI — Festo type code LFR-1/4-D-MINI, order number 159635. Everything below is taken from Festo’s own product data for this order number: the technical values, the category path, the GTIN and the lifecycle notice are all reproduced from the manufacturer’s page rather than paraphrased, so you can check them against Festo’s documentation before you buy.

Why Buyers Specify This Model

• Filter and pressure regulator in one housing, which saves space in the service unit
• Sizes micro, mini, midi and maxi, selected by the flow the branch needs
• Two pressure-gauge connections so the gauge can be mounted where it can be read
• Choice of manual, semi-automatic or fully automatic condensate drain
• Lockable rotary knob so the set pressure cannot be changed by accident
• Two pressure gauge connections for different installation options
• With manual, semi-automatic or fully automatic condensate drain

Technical Specifications (Official Festo Data)

Parameter	Official value
Pneumatic connection	port 1 G1/4 Standard nominal flow rate (standardised to DIN 1343) 1400 l/min Pressure regulation range 0.5 bar – 12 bar Grade of filtration 40 µm

Source: Festo official product page for order number 159635 (GTIN 4052568126797). Values are reproduced unchanged; they are not converted or rounded.

Ordering Information

Item	Official data
Manufacturer	Festo
Type code	LFR-1/4-D-MINI
Festo order number	159635
GTIN	4052568126797
Festo category path	Products Compressed air preparation Classic LFR, LFRS LFR-1/4-D-MINI-A
Series	Filter regulator LFR

The order number and the type code both have to match. A single character in the type code can change the valve function, the cushioning or the connection, and it always changes the order number.

Lifecycle and Availability

Festo’s own lifecycle notice for this variant: Product is planned to be discontinued. Do not use for new designs. 04/2026 – Product is being phased out. Do not use for new designs. 11/2028 – Product is discontinued. Products for replacem

We publish this notice rather than omit it. If the notice applies to your variant, we will tell you what Festo still supplies and what the current alternative is, so you can decide between a like-for-like spare and a platform change.

Official Documentation

Every figure on this page comes from Festo. Use the manufacturer’s own documents to verify it:

• Festo official product page — LFR-1/4-D-MINI — the source of the technical values and the lifecycle notice above.
• Festo official series catalogue (PDF) — Festo’s own catalogue for this series, including the type code breakdown and the ordering data for every variant.

Ordering This Part

Before we quote, please confirm:

• the complete Festo type code, exactly as it appears on the drawing or the nameplate — not just the series name;
• the order number if you have it, so we can cross-check the code against Festo’s catalogue;
• the quantity and the delivery address;
• for cylinders, the stroke and the mounting style, because both are fields in the order code;
• for valves and sensors, the electrical connection and the voltage, because these are fields in the order code.

Send us a photograph of the nameplate if the code is hard to read — that is usually the fastest way to avoid shipping the wrong variant.

Frequently Asked Questions

What does LFR-1/4-D-MINI mean?
The fraction is the pneumatic connection thread (here G1/4), D denotes the series, and MINI is the size. Festo also offers the LFR as LFR-…-A versions; the suffix letters distinguish the variant, so quote the whole code.

What is the difference between LFR and LFRS?
They belong to the same service-unit family. Festo lists the LFR and LFRS together; the difference lies in the regulator version inside the unit, and the two carry different order codes.

Which drain should I choose?
Manual drain for a branch that is checked regularly, semi-automatic for general duty and fully automatic where condensate must never reach the downstream equipment. The drain is part of the code; tell us the duty and we will match it.

Do I need a separate filter element?
The filtration grade is part of the order code, and the element is a spare part. Tell us the grade on your existing unit and we will quote a replacement element as well.