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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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Festo
153979
Shut-off valve HE-3-QS-1/2-U
The Festo 153979 is a 3/2-way bistable industrial component featuring a directly controlled piston gate valve structure with an exhaust function and non-reversible flow direction. Built with a reinforced PBT housing and soft sealing principle, this manually actuated valve accommodates a normal nominal flow rate of 777.6 l/min at a nominal width of 4.7 mm across an operating pressure range of -0.95 bar to 10 bar. It supports compressed air operating media in accordance with ISO 8573-1:2010 [7:-:-] with optional oil lubrication, features QS-1/2 pneumatic connections on ports 1 and 2, and offers installation via direct through-hole mounting or in-line installation in any mounting position. Submit the exact part number, quantity, and application requirements to receive an official quote.
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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
- 153979
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 153979.
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
- 3/2-way, bistable
- Selection of additional function
- with exhaust function
- Pneumatic connection 1
- QS-1/2
- Pneumatic connection 2
- QS-1/2
- Actuation type
- Manual
- Type of mounting
- Alternatively: | Direct mounting via through-hole | In-line installation
- Normal nominal ow rate (normalized to DIN 1343)
- 777.6 l/min
- Nominal width
- 4.7 mm
- Operating pressure
- -0.095 MPa...1 MPa | -0.95 bar...10 bar
- Ambient temperature
- 0 °C...60 °C
- Housing material
- PBT-reinforced
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:-:-]
- Exhaust air function
- Cannot be throttled
- Sealing principle
- Soft
- Mounting position
- Any
- Structural design
- Piston gate valve
- Type of control
- directly
- Flow direction
- Non-reversible
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Cleanroom suitability, measured according to ISO 14644-14
- Class 4 according to ISO 14644-1
- Temperature of medium
- 0 °C...60 °C
- Product weight
- 46 g
- Pneumatic connection 3
- Not ducted
- 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 153979. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.