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Festo
34879
Piloted non return valve HGL-3/8-NPT
The Festo part number 34879 is an industrial component featuring an unlockable check valve function with 3/8 NPT pneumatic connections on both ports and a screw-in mounting type. It operates within a pressure range of 0.02 MPa to 1 MPa (0.2 bar to 10 bar) and a pilot pressure range of 0.12 MPa to 1 MPa (1.2 bar to 10 bar or 17.4 psi to 145 psi), supporting a normal nominal flow rate from 0 l/min to 900 l/min. Designed for compressed air operating media compliant with ISO 8573-1:2010 [7:4:4] across an ambient and medium temperature range of -20 °C to 80 °C, this RoHS-compliant unit accommodates oil lubrication and meets VDMA24364-B1/B2-L LABS conformity. Submit the exact part number, quantity, and application requirements for an RFQ 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
- 34879
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 34879.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- Unlockable check valve function
- Pneumatic connection 1
- 3/8 NPT
- Pneumatic connection 2
- 3/8 NPT
- Type of mounting
- Screw-in
- Normal nominal ow rate (normalized to DIN 1343)
- 0 l/min...900 l/min
- Operating pressure
- 0.02 MPa...1 MPa | 0.2 bar...10 bar
- Pilot pressure MPa
- 0.12 MPa...1 MPa
- Pilot pressure
- 1.2 bar...10 bar
- Pilot pressure psi
- 17.4 psi...145 psi
- Ambient temperature
- -20 °C...80 °C
- 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)
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Temperature of medium
- -20 °C...80 °C
- 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 34879. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.