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Products/Festo/540041
Festo 540041 Pressure regulator manifold LRB-1/4-DB-7-O-K3-MINI
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Festo

540041

Pressure regulator manifold LRB-1/4-DB-7-O-K3-MINI

The Festo 540041 is a mini DB series industrial component featuring a directly controlled piston regulator designed for mounting on a pressure strip with G1/2 pneumatic connection 1. It provides a constant outlet pressure with secondary exhausting, a return flow function, and a pressure regulation range of 0.5 bar to 7 bar (0.05 MPa to 0.7 MPa, 7.25 psi to 101.5 psi) across an operating pressure of 1.5 bar to 10 bar (0.15 MPa to 1 MPa). The unit incorporates a rotary knob with detent for actuator locking, accommodates any mounting position, handles a standard nominal flow rate of 1000 l/min of compressed air conforming to ISO 8573-1:2010 [-:-:-], and operates within a medium and ambient temperature range of -5 °C to 50 °C. Submit the exact part number, quantity, and application requirements to receive a quote for this 750 g component.

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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
540041
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 540041.
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Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Size
Mini
Series
DB
Actuator lock
Rotary knob with detent
Mounting position
Any
Structural design
On P. strip | Directly controlled piston regulator
Controller function
Outlet pressure constant | With secondary exhausting | With return ow function
Operating pressure
0.15 MPa...1 MPa | 1.5 bar...10 bar
Pressure regulation range MPa
0.05 MPa...0.7 MPa
Pressure regulation range
0.5 bar...7 bar
Pressure regulation range psi
7.25 psi...101.5 psi
Max. pressure hysteresis
0.5 bar
Standard nominal ow rate
1000 l/min
Operating medium
Compressed air as per ISO 8573-1:2010 [-:-:-]
Corrosion resistance class (CRC)
1 - Low corrosion stress
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Temperature of medium
-5 °C...50 °C
Ambient temperature
-5 °C...50 °C
Product weight
750 g
Type of mounting
Front panel mounting | With accessories
Pneumatic connection 1
G1/2
Pneumatic connection 2
G¼
Material of plug screw
Steel | Galvanized
Spacing bolt material
Wrought aluminum alloy
Manifold rail material
Wrought aluminum alloy
Sealing ring material
PVC
Seals material
NBR
Housing material
PA-reinforced

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 540041. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.