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Festo 6308 One-way flow control valve GR-3/8-B
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Festo

6308

One-way flow control valve GR-3/8-B

The Festo part number 6308 is an industrial one-way flow control valve featuring internal thread G3/8 pneumatic connections on both ports and a brass knurled screw adjusting element. Housed in die-cast zinc with a product weight of 225 g, this RoHS compliant component supports front panel mounting or through-hole installation in any mounting position. It operates within a pressure range of 0.01 MPa to 1 MPa (0.1 bar to 10 bar, 1.45 psi to 145 psi) and handles compressed air according to ISO 8573-1:2010 [7:4:4] at ambient and medium temperatures from -20 °C to 75 °C. The unit delivers a standard nominal flow rate of 1010 l/min in the flow control direction and 1150 l/min in the non-return direction, provides ATEX explosion protection for zones 1, 2, 21, and 22, and permits oil-lubricated operation. 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
6308
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 6308.
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
One-way ow control function
Pneumatic connection 1
Internal thread G3/8
Pneumatic connection 2
Internal thread G3/8
Adjusting element
Knurled screw
Type of mounting
Alternatively: | Front panel mounting | With through-hole
Standard nominal ow rate in ow control direction
1010 l/min
Standard nominal ow rate in non-return direction
1150 l/min
Operating pressure
0.01 MPa...1 MPa | 0.1 bar...10 bar | 1.45 psi...145 psi
Ambient temperature
-20 °C...75 °C
Housing material
Die-cast zinc
Explosion prevention and protection
Observe the information on the certicate | Zone 1 (ATEX) | Zone 2 (ATEX) | Zone 21 (ATEX) | Zone 22 (ATEX)
Mounting position
Any
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Temperature of medium
-20 °C...75 °C
Product weight
225 g
Note on materials
RoHS compliant
Material of adjusting screw
Brass

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 6308. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.