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.
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Reference imageConfirm configuration by manufacturer part number.
Festo
6684
OR gate OS-PK-3
The Festo part number 6684 is an industrial pneumatic component featuring an OR valve function with PK-3 connections across all three ports and a nominal width of 2.4 mm. Constructed with a POM housing and NBR seals, this 9 g unit operates within a pressure range of 1.6 bar to 8 bar and handles a normal nominal flow rate of 120 l/min for compressed air meeting ISO 8573-1:2010 [7:-:-] standards. It supports any mounting position via a through-hole, accommodates temperatures from -10 °C to 60 °C, and complies with VDMA24364-B1/B2-L LABS conformity and RoHS material directives. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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Request a QuoteWhy no listed price?
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
- 6684
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 6684.
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
- OR function
- Pneumatic connection 1
- PK-3
- Pneumatic connection 2
- PK-3
- Type of mounting
- With through-hole
- Normal nominal ow rate (normalized to DIN 1343)
- 120 l/min
- Operating pressure
- 1.6 bar...8 bar
- Ambient temperature
- -10 °C...60 °C
- Housing material
- POM
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:-:-]
- Nominal width
- 2.4 mm
- Mounting position
- Any
- 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
- -10 °C...60 °C
- Product weight
- 9 g
- Pneumatic connection 3
- PK-3
- Note on materials
- RoHS compliant
- Seals material
- NBR
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 6684. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.