Confirm the exact configuration
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
170691
On/off valve HEL-D-MIDI
The Festo 170691 is a directly controlled 2/2-way closed monostable piston gate valve featuring a soft sealing principle and an adjustable exhaust air function with a mechanical spring reset method. Designed for in-line installation in any mounting position, this pneumatic component operates within a pressure range of 0.3 MPa to 1.6 MPa using compressed air conforming to ISO 8573-1:2010 [7:4:4] or inert gases at temperatures between -10 °C and 60 °C. It exhibits a VDMA24364-B1/B2-L LABS conformity and a CRC corrosion resistance class of 2 for moderate stress, weighs 270 g, and accommodates oil lubrication for operation. Submit the exact part number, quantity, and application requirements to request 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
- 170691
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 170691.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Exhaust air function
- Adjustable
- Actuation type
- Pneumatic
- Sealing principle
- Soft
- Mounting position
- Any
- Manual override
- None
- Structural design
- Piston gate valve
- Reset method
- Mechanical spring
- Type of control
- directly
- Flow direction
- Non-reversible
- Valve function
- 2/2-way, closed, monostable
- Operating pressure
- 0.3 MPa...1.6 MPa | 3 bar...16 bar
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
- 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
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
- Temperature of medium
- -10 °C...60 °C
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 270 g
- Type of mounting
- In-line installation
- Note on materials
- RoHS compliant
- Seals material
- NBR
- Housing material
- Die-cast aluminum
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 170691. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.