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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
153981
Shut-off valve HE-2-QS-1/4-U
The Festo 153981 is a directly controlled 2/2-way bistable piston gate valve featuring QS-1/4 pneumatic connections on both ports and a nominal width of 3.2 mm. Operating within a pressure range of -0.95 bar to 10 bar and an ambient temperature range of 0 °C to 60 °C, this manual actuation component delivers a normal nominal flow rate of 306.9 l/min using compressed air as per ISO 8573-1:2010 [7:-:-]. Constructed with a reinforced PBT housing, soft sealing principle, and CRC 2 moderate corrosion resistance, it supports direct through-hole or in-line mounting in any position. Submit the exact part number, quantity, and application requirements to receive a formal 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
- 153981
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 153981.
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
- 2/2-way, bistable
- Pneumatic connection 1
- QS-1/4
- Pneumatic connection 2
- QS-1/4
- Actuation type
- Manual
- Type of mounting
- Alternatively: | Direct mounting via through-hole | In-line installation
- Normal nominal ow rate (normalized to DIN 1343)
- 306.9 l/min
- Nominal width
- 3.2 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:-:-]
- Sealing principle
- Soft
- Mounting position
- Any
- Structural design
- Piston gate valve
- Type of control
- directly
- Flow direction
- 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
- 23 g
- 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 153981. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.