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Festo
528990
Pressure regulator manifold LRB-3/8-D-O-K4-MIDI
The Festo 528990 is a Series D Midi industrial component featuring a directly controlled diaphragm regulator with continuous compressed air supply and an actuator lock via a rotary knob with detent. Operating within a pressure range of 1 bar to 16 bar (0.1 MPa to 1.6 MPa) and a regulation range of 0.5 bar to 12 bar (7.25 psi to 174 psi), this unit delivers a normal nominal flow rate of 3,200 l/min while supporting constant output pressure, primary pressure compensation, and secondary exhausting. It operates in medium and ambient temperatures from -10 °C to 60 °C, utilizes G1/4 pressure gauge setup, accommodates any mounting position with accessories, and weighs 3834 g. Submit the exact part number, quantity, and application requirements to receive a formal quote.
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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
- 528990
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 528990.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Midi
- Series
- D
- Actuator lock
- Rotary knob with detent
- Mounting position
- Any
- Structural design
- Directly controlled diaphragm regulator | with continuous compressed air supply
- Controller function
- Constant output pressure | With primary pressure compensation | With secondary exhausting
- Pressure gauge
- Set up for G1/4
- Operating pressure
- 0.1 MPa...1.6 MPa | 1 bar...16 bar
- Pressure regulation range MPa
- 0.05 MPa...1.2 MPa
- Pressure regulation range
- 0.5 bar...12 bar
- Pressure regulation range psi
- 7.25 psi...174 psi
- Max. pressure hysteresis
- 0.02 MPa | 0.2 bar | 2.9 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 3200 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Temperature of medium
- -10 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 3834 g
- Type of mounting
- With accessories
- Pneumatic connection 1
- G3/8
- Pneumatic connection 2
- G3/8
- Material of sub-base
- Die-cast zinc
- Material of operator panel
- PA
- Seals material
- NBR
- Housing material
- Die-cast zinc
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 528990. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.