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Products/Festo/3671
Festo 3671 Non return valve H-M5
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Festo

3671

Non return valve H-M5

The Festo part number 3671 is an industrial component featuring a non-return valve function with M5 pneumatic connections on both ports for in-line installation. Constructed with a brass housing and NBR seals, it supports a normal nominal flow rate of 140 l/min at an operating pressure range of 0.04 MPa to 0.8 MPa. The unit operates within ambient and medium temperatures from -10 °C to 60 °C using compressed air as per ISO 8573-1:2010 [7:-:-], allowing for oil-lubricated operation that is required for further use. This RoHS-compliant part adheres to VDMA24364-B2-L LABS conformity standards. Submit the exact part number, quantity, and application requirements for a 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
3671
Data verification
Manufacturer evidence reviewed

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

Exact part-number verificationTechnical properties are matched to 3671.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Valve function
Non-return function
Pneumatic connection 1
M5
Pneumatic connection 2
M5
Type of mounting
In-line installation
Normal nominal ow rate (normalized to DIN 1343)
140 l/min
Operating pressure
0.04 MPa...0.8 MPa | 0.4 bar...8 bar
Ambient temperature
-10 °C...60 °C
Housing material
Brass
Operating medium
Compressed air as per ISO 8573-1:2010 [7:-:-]
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
LABS (PWIS) conformity
VDMA24364-B2-L
Temperature of medium
-10 °C...60 °C
Note on materials
RoHS compliant
Seals material
NBR

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 3671. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.