Global industrial sourcing · Houston, Texas info@mropartsrfq.com
Products/Festo/528971
Festo 528971 Pressure regulator manifold LRB-3/8-D-O-K3-MINI
Reference imageConfirm configuration by manufacturer part number.

Festo

528971

Pressure regulator manifold LRB-3/8-D-O-K3-MINI

The Festo 528971 is a mini D-series industrial component featuring a directly controlled diaphragm regulator with continuous compressed air supply and a rotary knob with detent actuator lock. It delivers constant output pressure with primary pressure compensation and secondary exhausting across an operating pressure range of 1 bar to 16 bar, supported by a 1600 l/min normal nominal flow rate and G1/8 pressure gauge setup. Designed for any mounting position with a product weight of 1090 g, this unit operates within a temperature range of -10 °C to 60 °C for both the medium and ambient environment. Submit the exact part number, quantity, and application requirements to receive an accurate quote for this component.

Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a Quote
Why 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
528971
Data verification
Manufacturer evidence reviewed

For a faster response, include quantity, condition, and delivery destination.

Exact part-number verificationTechnical properties are matched to 528971.
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
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 G1/8
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)
1600 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
1090 g
Type of mounting
With accessories
Pneumatic connection 1
G3/8
Pneumatic connection 2
G1/4
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

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 528971. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.