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Products/Festo/525740
Festo 525740 Plastic tubing PUN-6X1-SI-500
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Festo

525740

Plastic tubing PUN-6X1-SI-500

The Festo 525740 is a silver pneumatic tubing featuring a 6 mm outside diameter, a 4 mm inside diameter, and a Shore hardness of D 52 +/-3, manufactured from ester-based TPE-U material with RoHS compliance and UL94 HB fire testing conformity. Certified by TÜV under authority B 013277 0527 00, this component operates with compressed air as per ISO 8573-1:2010 [7:-:-] across an ambient temperature range of -35 °C to 60 °C and supports an operating pressure of -0.95 bar to 7 bar across its entire temperature range. It is suitable for energy chains, incorporates a 16 mm minimum bending radius alongside a 26.5 mm bending radius relevant for flow rate, and requires that any installation in contact with cables uses sheathing free from phosphoric acid esters. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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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
525740
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 525740.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Outside diameter
6 mm
Bending radius relevant for ow rate
26.5 mm
Inside diameter
4 mm
Min. bending radius
16 mm
Application note
TPE-U, ester-based | The plastic tubing can only be installed in contact with cables if the | sheathing is free from phosphoric acid esters. Failure to observe this can | result in damage to the plastic tubing.
Tubing characteristics
Suitable for energy chains
Operating pressure for entire temperature range
-0.095 MPa...0.7 MPa | -0.95 bar...7 bar | -13.775 psi...101.5 psi
Temperature-dependent operating pressure
-0.095 MPa...1 MPa | -0.95 bar...10 bar | -13.775 psi...145 psi
Certication
TÜV
Certicate issuing authority
B 013277 0527 00
Operating medium
Compressed air as per ISO 8573-1:2010 [7:-:-]
Material re test
UL94 HB
LABS (PWIS) conformity
VDMA24364-B2-L
Ambient temperature
-35 °C...60 °C
Product weight by length
0.0192 kg/m
Pneumatic connection
For plug connection outside diameter 6 mm | For barbed tting, inside diameter 4 mm, with union nut | For barbed tting, inside diameter 4 mm
Color
Silver
Shore hardness
D 52 +/-3
Note on materials
RoHS compliant
Material of pneumatic tubing
TPE-U(PU)

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 525740. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.