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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
8198978
Piston actuator DFPK-75-20-S-T32-V4
The Festo 8198978 is an industrial component featuring a size 75 valve actuator with a 20 mm stroke, operating at pressures from 0.5 MPa to 1 MPa (5 bar to 10 bar / 72.5 psi to 145 psi) using compressed air conforming to ISO 8573-1:2010 [7:4:4]. Built with a cast stainless steel housing (material number 1.4408), cast stainless steel cover, high-alloy stainless steel piston rod, and FPM seals, this N/O unit provides spring-force opening, a mechanical position indicator, a G1/8 internal thread pneumatic connection, and IP65/IP67 protection ratings. It is RoHS compliant, conforms to VDMA24364 Zone III LABS (PWIS) standards, weighs 2539 g, and operates in ambient temperatures from 0 °C to 60 °C with storage temperatures from -10 °C to 60 °C in any mounting position. Submit the exact part number, quantity, and application requirements to receive a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
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
- 8198978
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 8198978.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size of valve actuator
- 75
- Stroke
- 20 mm
- Mounting position
- Any
- Position sensing
- With mechanical indicator
- Control function
- Opened by spring force, N/O
- Operating pressure
- 0.5 MPa...1 MPa | 5 bar...10 bar | 72.5 psi...145 psi
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- LABS (PWIS) conformity
- VDMA24364 Zone III
- Storage temperature
- -10 °C...60 °C
- Degree of protection
- IP65 | IP67
- Ambient temperature
- 0 °C...60 °C
- Product weight
- 2539 g
- Pneumatic connection
- Internal thread G1/8
- Note on materials
- RoHS compliant
- Cover material
- Cast stainless steel
- Seals material
- FPM
- Housing material
- Cast stainless steel
- Material number of housing
- 1,4408
- Piston rod material
- high-alloy stainless steel
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 8198978. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.