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Products/Festo/537657
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Festo

537657

Service unit FRC-1/8-DB-7-MINI-H

The Festo 537657 is a mini-sized DB series filter regulator/lubricator featuring a rotary knob with lock actuator, a semi-automatic condensate drain, and an integrated pressure gauge. It operates within a working pressure range of 1.5 to 10 bar, a pressure regulation range of 0.5 to 7 bar, and delivers a standard nominal flow rate of 550 l/min or greater with a 40 µm filtration grade. Designed for vertical installation within +/- 5°, this unit processes compressed air conforming to ISO 8573-1:2010 [-:-:-] or inert gases at temperatures from -5 to 50 °C. Submit the exact part number, quantity, and application requirements for an RFQ quote.

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Manufacturer
Festo
Part number
537657
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 537657.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Size
Mini
Width
88 mm
Series
DB
Actuator lock
Rotary knob with lock
Assembly position
Vertical +/- 5°
Condensate drain
semi-automatic
Design structure
Filter regulator/lubricator
Grade of filtration
40 µm
Controller function
with secondary exhaust | with return flow
Pressure gauge
with pressure gauge
Working pressure
1.5 ... 10 bar
Pressure regulation range
0.5 ... 7 bar
Max. pressure hysteresis
0.5 bar
Standard nominal flow rate
>= 550 l/min
Operating medium
Compressed air in accordance with ISO8573-1:2010 [-:-:-] | Inert gases
Approved oils
Festo special oil in 1-liter containers | Order code: 152 811 OFSW-32 | ARAL Vitam GF 32 | BP Energol HLP 32 | ESSO Nuto H 32 | MOBIL DTE 24 | SHELL Tellus Oil DO 32 | Range of viscosity 32mm²/s at 40°C | ISO class VG 32 to ISO 3448
Corrosion resistance classification CRC
1
Air purity class at output
Compressed air to ISO 8573-1:2010 [7:8:-] | Inert gases
Medium temperature
-5 ... 50 °C
Oil viscosity
ISO VG 32
Ambient temperature
-5 ... 50 °C
Product weight
300 g
Mounting type
Optional | Line installation | with through hole | With mounting bracket
Pressure gauge connection
G1/8
Pneumatic connection, port
2 G1/8
Materials information for seals
NBR
Material information, rotary knob
POM
Materials information for filter
PE
Materials information, housing
PA-reinforced
Materials information for bowl
PC

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 537657. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.