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Festo
173659
Pressure regulator LR-3/8-D-7-O-MIDI-NPT
The Festo part number 173659 is a Midi-sized industrial component from the D series featuring 3/8 NPT pneumatic connections for both ports 1 and 2. It operates at a maximum pressure of 1.6 MPa (16 bar) with a pressure regulation range of 0.5 bar to 7 bar and a maximum pressure hysteresis of 0.02 MPa (0.2 bar / 2.9 psi). Rated for a medium and ambient temperature range of -10 °C to 60 °C, this RoHS-compliant unit accommodates compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases, permitting oil lubrication operation. Submit the exact part number, quantity, and application requirements to request a 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
- 173659
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 173659.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Midi
- Series
- D
- Operating pressure
- 1.6 MPa | 16 bar
- Pressure regulation range
- 0.5 bar...7 bar
- Max. pressure hysteresis
- 0.02 MPa | 0.2 bar | 2.9 psi
- 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
- Pneumatic connection 1
- 3/8 NPT
- Pneumatic connection 2
- 3/8 NPT
- Note on materials
- RoHS compliant
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 173659. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.