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Festo
8191931
Ball valve unit VAPB-A-1 1/4-F-40-F0405-PB60
The Festo 8191931 is a 2-way pneumatic ball valve featuring a quarter-turn actuator and soft sealing principle for in-line installation in any mounting position. It operates within a pressure range of 0.55 MPa to 0.8 MPa (5.5 bar to 8 bar) with an Rp1 1/4 fitting connection, a nominal width DN of 32, and a nominal pressure PN of 40 based on EN 10226-1. The assembly handles media temperatures from -10 °C to 200 °C, delivers a Kv flow rate of 121 m³/h, and requires a breakaway torque of 15 Nm at nominal differential pressure. Submit your exact part number, quantity, and application requirements to receive a formal quotation for this component.
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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
- 8191931
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 8191931.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Structural design
- 2-way ball valve | Quarter turn actuator
- Actuation type
- Pneumatic
- Sealing principle
- Soft
- Mounting position
- Any
- Type of mounting
- In-line installation
- Fitting connection
- Rp1 1/4
- Switching position indication
- Slot direction = ow direction
- Flange hole pattern
- F0405
- Nominal width DN
- 32
- Valve function
- 2/2
- Flow direction
- Reversible
- Operating pressure
- 0.55 MPa...0.8 MPa | 5.5 bar...8 bar | 79.75 psi...116 psi
- Nominal pressure of tting PN
- 40
- Breakaway torque at differential pressure, nominal pressure, tting PN
- 15 Nm
- Based on norm
- EN 10226-1
- Medium
- Compressed air as per ISO 8573-1:2010 [-:-:-] | Inert gas | Water – no water vapor | Neutral liquids | Other ow media on request
- 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)
- Temperature of medium
- -10 °C...200 °C
- Flow rate Kv
- 121 m³/h
- Note on materials
- RoHS compliant
- LABS (PWIS) conformity
- VDMA24364 Zone III
- Housing material
- Brass, nickel-plated
- Material number of housing
- 2,0402 | CW617N
- Seat seal material
- PTFE
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 8191931. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.