LR-1-8-D-O-I-MINI Festo Pressure Regulator

USD 44.20

Mini size pressure regulator with G1/8 ports and 800 l/min flow. Features a directly actuated diaphragm, rotary knob with detent, and 0.5–12 bar regulation range.

SKU Festo-192304 Category
Pressure Regulators

LR-1/8-D-O-I-MINI Festo Pressure regulator

Model Identifier LR-1/8-D-O-I-MINI
Official Part Number 192304
GTIN Standard 4052568079338

Technical Overview

The Festo LR-1/8-D-O-I-MINI is a directly actuated diaphragm pressure regulator part of the D series, designed for precise compressed air and inert gas regulation. It features primary pressure compensation to maintain a constant output pressure, along with secondary venting and a integrated return flow function. Built with a durable die-cast zinc housing and NBR seals, this mini-sized regulator supports a standard nominal flow rate of 800 l/min and a pressure range of 0.5 to 12 bar.

Key Features

  • Directly actuated diaphragm regulator
  • Actuator lock: Rotary knob with detent
  • Secondary venting function
  • Integrated return flow function
  • Primary pressure compensation
  • RoHS-compliant materials
  • Suitable for lubricated operation
  • Optional mounting position

Primary pressure compensation ensures constant output pressure despite fluctuations in inlet pressure.

Technical Specification Matrix

ParameterValue
SizeMini
SeriesD
Actuator lockRotary knob with detent
Mounting positionoptional
DesignDirectly actuated diaphragm regulator
Controller functionOutput pressure constant, Via primary pressure compensation, With secondary venting, With return flow function
Symbol00991559
Pressure gauge (ANALOG) or Pressure display (DIGITAL)Prepared for G1/8
Operating pressure (MPa)0.1 MPa ... 1.6 MPa
Operating pressure (bar)1 bar ... 16 bar
Pressure regulation range0.5 bar ... 12 bar
Max. pressure hysteresis (MPa)0.02 MPa
Max. pressure hysteresis (bar)0.2 bar
Max. pressure hysteresis (psi)2.9 psi
Standard nominal flow rate (standardised to DIN 1343)800 l/min
Operating mediumCompressed air to ISO 8573-1:2010 [7:4:4], Inert gases
Note on operating and pilot mediumLubricated operation possible (in which case lubricated operation will always be required)
LABS (PWIS) conformityVDMA24364-B1/B2-L
Air purity class at outputCompressed air to ISO 8573-1:2010 [7:4:4], Inert gases
Media temperature-10 °C ... 60 °C
Ambient temperature-10 °C ... 60 °C
Product weight300 g
Type of mountingWith accessories
Pneumatic connection, port 1G1/8
Pneumatic connection, port 2G1/8
Note on materialsRoHS-compliant
Material sub-baseDie-cast zinc
Material sealsNBR
Material housingDie-cast zinc

Industrial Applications

1. Precision Gripping in Automated Packaging Lines

In high-speed packaging lines handling fragile components, consistent pneumatic gripping force is essential. The Festo LR-1/8-D-O-I-MINI is deployed locally at the pick-and-place station to regulate compressed air precisely between 0.5 and 12 bar. Its primary pressure compensation ensures that sudden drops in the main factory air line do not impact the local gripper's operation.

Problem Solved

Prevents crushed products and dropped items by eliminating gripping force fluctuations, utilizing its extremely tight maximum pressure hysteresis of 0.2 bar to maintain a constant output pressure.

Primary pressure compensation0.2 bar hysteresis800 l/min nominal flow rateOutput pressure constantPneumatic gripping

2. Compact Inert Gas Purging Station for Electronics Assembly

Micro-electronics and semiconductor assembly cells often require localized inert gas blanketing to prevent oxidation. This mini regulator is rated for both compressed air and inert gases, making it ideal for installation directly inside compact automation cells. Its G1/8 pneumatic connections and die-cast zinc housing allow for robust integration in highly confined spaces.

Problem Solved

Solves the challenge of integrating reliable inert gas regulation into dense machine footprints, providing stable gas delivery at temperatures up to 60 °C without requiring bulky, oversized standard regulators.

Inert gasesG1/8 pneumatic connectionMini size seriesDie-cast zinc housingDirectly actuated diaphragm regulator

3. End-of-Arm Tooling (EOAT) Actuation on Robotic Manipulators

Mounted directly onto a multi-axis robot arm where payload capacity and size are strictly limited, this 300g miniature pressure regulator delivers a stable air supply to local pneumatic clamps. The built-in return flow function and secondary venting allow for rapid pressure exhaustion, essential for the instantaneous release of clamped parts during fast-paced robotic cycles.

Problem Solved

Overcomes dangerous pressure drops across long, flexing robotic pneumatic lines by providing localized, lightweight regulation with secondary venting for high-speed actuation and exhaust.

End-of-arm toolingSecondary ventingReturn flow function300 g product weightRotary knob with detent

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