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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.
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Festo
538021
Precision pressure regulator MS6-LRP-1/2-D2-A8-Z
The Festo 538021 is an industrial component featuring a piloted precision diaphragm regulator design from the MS series, size 6, with a rotary knob with lock actuator. This unit delivers a constant output pressure with secondary exhaust across a working pressure range of 1 to 14 bar and a pressure control range of 0.05 to 0.7 bar, supporting a standard nominal flow rate of at least 1,600 l/min using compressed air or inert gases. Flexibility is provided by any assembly position, a G1/8" prepared pressure gauge, and optional mounting types including front panel, line installation, or accessories. Submit the exact part number, quantity, and application requirements for an official quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
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
- 538021
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 538021.
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 lock
- Assembly position
- Any
- Design structure
- Piloted precision diaphragm regulator
- Controller function
- Output pressure constant | with secondary exhaust
- Pressure gauge
- G1/8" prepared
- Working pressure
- 1 ... 14 bar
- Pressure control range
- 0.05 ... 0.7 bar
- Max. pressure hysteresis
- 0.02 bar
- Flow rate, secondary venting
- >= 220 l/min
- Standard nominal flow rate
- >= 1,600 l/min
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:4:4] | Inert gases
- Note on operating and pilot medium
- Lubricated operation not possible
- Corrosion resistance classification CRC
- 2
- Storage temperature
- -10 ... 60 °C
- Medium temperature
- -10 ... 60 °C
- Ambient temperature
- -10 ... 60 °C
- Product weight
- 1,000 g
- Mounting type
- Optional | Front panel installation | Line installation | with accessories
- Pneumatic connection, port
- 3 G1/4
- Materials note
- Free of copper and PTFE | Conforms to RoHS
- Materials information for seals
- NBR
- Materials information, housing
- Aluminum
Engineering context
Identification and RFQ Guidance
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 538021. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.