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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
8172785
Soft start/quick exhaust valve MS6-SV-1/2-C-10V24-S-AD7
The Festo 8172785 is an MS series size 6 industrial component featuring a 62 mm width dimension, a piston gate valve structural design with positive overlap, and a soft sealing principle. It incorporates electrical actuation with internal pilot air supply, a piloted control type, mechanical spring reset, and a 3/2-way closed monostable valve function supporting an operating pressure of 0.3 MPa to 1 MPa (3 bar to 10 bar). Designed for exhausting and the prevention of unexpected start-up with Category 1, Performance Level c compliance per DIN EN ISO 13849-1 and DIN EN ISO 13849-2 standards, this unit includes a pressure sensor with a switching indicator and a C value of 23.2 l/sbar. Submit the exact part number, quantity, and application requirements to request a quote.
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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
- 8172785
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 8172785.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Series
- MS
- Size
- 6
- Width dimension
- 62 mm
- Safety function
- Exhausting | Prevention of unexpected start-up (pressurization)
- Performance Level (PL)
- Exhaust/category 1, performance level c | Avoidance of unexpected start-up (pressurization)/category 1, | performance level c
- Note on forced dynamization
- Switching frequency at least once a month
- Structural design
- Piston gate valve
- Lap
- Positive overlap
- Actuation type
- Electrical
- Pilot air supply port
- Internal
- Sealing principle
- Soft
- Exhaust air function
- Cannot be throttled
- Conforms to standard
- DIN EN ISO 13849-1 | DIN EN ISO 13849-2
- Manual override
- At pilot control air solenoid valve: non-detenting, at soft start/quick | exhaust valve: detenting, self-resetting
- Reset method
- Mechanical spring
- Type of control
- Piloted
- Valve function
- 3/2-way, closed, monostable | Pressurization function
- Operating pressure
- 0.3 MPa...1 MPa | 3 bar...10 bar
- Pressure gauge
- with pressure sensor with switching indicator
- C value
- 23.2 l/sbar
- b-value
- 0.4
- Normal nominal ow rate (normalized to DIN 1343)
- 5700 l/min
- Standard ow rate exhaust 6-> 0 bar
- 7600 l/min
- Switching time off
- 65 ms
- On switching time
- 370 ms
- Duty cycle
- 100%
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 8172785. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.