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Festo
540043
Pressure regulator manifold LRB-1/4-DB-7-O-K5-MINI
The Festo 540043 is a mini industrial component of the DB series featuring a directly controlled piston regulator designed for mounting on a P. strip or via front panel mounting and accessories with a G1/2 pneumatic connection. This device maintains a constant outlet pressure with secondary exhausting and a return flow function, operating within a pressure range of 1.5 bar to 10 bar (0.15 MPa to 1 MPa) and a regulation range of 0.5 bar to 7 bar (0.05 MPa to 0.07 MPa / 7.25 psi to 101.5 psi) with a maximum pressure hysteresis of 0.5 bar and a standard nominal flow rate of 1000 l/min using compressed air as per ISO 8573-1:2010 [-:-:-]. Built for an ambient and medium temperature range of -5 °C to 50 °C with a product weight of 1250 g, a corrosion resistance class of 1, and VDMA24364-B1/B2-L LABS conformity, it utilizes a rotary knob with detent for actuator locking in any mounting position. 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
- 540043
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 540043.
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
- 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
- 1250 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
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 540043. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.