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Products/Festo/527664
Festo 527664 Pressure regulator MS6N-LR
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Festo

527664

Pressure regulator MS6N-LR

The Festo 527664 is a size 6 industrial component from the MS series functioning as a pressure regulator with an operating pressure range of 0.8 bar to 20 bar and a pressure regulation range of 0.3 bar to 16 bar. It features constant output pressure, primary pressure compensation, secondary exhausting, a maximum pressure hysteresis of 0.25 bar, and a normal nominal flow rate between 2200 l/min and 7500 l/min for compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases. Certified as c UL us - recognized (OL) and compliant with the EU explosion protection directive (ATEX) for Zones 1, 2, 21, and 22, it operates in ambient temperatures from -10°C to +60°C. Submit part number 527664, quantity, and application requirements for an RFQ.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer
Festo
Part number
527664
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 527664.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Size
6
Series
MS
Actuator lock
Rotary knob with detent | Rotary knob with integrated lock | can be closed with accessories
Mounting position
Any
Structural design
Pressure regulator with pressure gauge | Pressure regulator without pressure gauge
Controller function
Constant output pressure | With primary pressure compensation | With secondary exhausting
Pressure gauge
Set up for G1/4 | Set up for G1/8 | With pressure sensor | with pressure gauge | With pressure gauge in the rotary knob
Operating pressure
0.8 bar...20 bar
Pressure regulation range
0.3 bar...16 bar
Max. pressure hysteresis
0.25 bar
Normal nominal ow rate (normalized to DIN 1343)
2200 l/min...7500 l/min
Certication
c UL us - recognized (OL)
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Explosion prevention and protection
Zone 1 (ATEX) | Zone 2 (ATEX) | Zone 21 (ATEX) | 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 T60°C Db X
Explosive ambient temperature
-10°C <= Ta <= +60°C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress

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 527664. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.