4772779

Name: Festo 4772779 Filter regulator LFR-N1/2-D-16-O-MIDI-T18-EX4
Brand: Festo

Filter regulator LFR-N1/2-D-16-O-MIDI-T18-EX4

The Festo part number 4772779 is a Midi-size filter regulator from the D series, featuring a structural design without a pressure gauge and a G1/4 setup for a pressure gauge. It operates within an input pressure range of 1 bar to 20 bar, a regulation range of 0.5 bar to 16 bar, and delivers a normal nominal flow rate of 1970 l/min with a 40 µm filtration grade. Equipped with a manual rotating condensate drain, a 42 cm³ max condensate volume, an integrated metal bowl guard, and a rotary knob with detent actuator lock, the unit supports a vertical ±5° mounting position with a maximum pressure hysteresis of 2.9 psi. Certified for hazardous locations, it carries CE and UKCA markings per explosion protection directives, EPL Db and Gb certifications, and accommodates ATEX and UKEX Zone 1, Zone 2, Zone 21, and Zone 22 classifications with II 2G gas and II 2D dust categories. Submit the exact part number, quantity, and application requirements to request a quote.

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Manufacturer: Festo
Part number: 4772779
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Technical Specifications

Size: Midi
Series: D
Actuator lock: Rotary knob with detent
Mounting position: Vertical ±5°
Grade of ltration: 40 µm
Condensate drain: Manual, rotating
Structural design: Filter regulator without pressure gauge
Max. condensate volume: 42 cm³
Bowl guard: Integrated as metal bowl
Pressure gauge: Set up for G1/4
Operating pressure: 0.1 MPa...2 MPa | 1 bar...20 bar
Pressure regulation range: 0.5 bar...16 bar
Max. pressure hysteresis: 0.02 MPa | 2.9 psi
Normal nominal ow rate (normalized to DIN 1343): 1970 l/min
CE marking (see declaration of conformity): as per EU explosion protection directive (ATEX)
UKCA marking (see declaration of conformity): acc. to UK EX instructions
Explosion protection certication outside the EU: EPL Db (GB) | EPL Gb (GB)
Explosion prevention and protection: Zone 1 (ATEX) | Zone 1 (UKEX) | Zone 2 (ATEX) | Zone 21 (ATEX) | Zone 21 (UKEX) | Zone 22 (ATEX)
ATEX category gas: II 2G
ATEX category for dust: II 2D
Type of ignition protection for gas: Ex h IIC T6 Gb X
Type of (ignition) protection for dust: Ex h IIIC T85°C Db X
Explosive ambient temperature: -20°C <= Ta <= +80°C
Operating medium: Compressed air as per ISO 8573-1:2010 [-:9:-] | Inert gases
Information on operating and pilot media: Operation with oil lubrication possible (required for further use)

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Our sourcing response is prepared against Festo 4772779. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.