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Products/Festo/34877
Festo 34877 Piloted non return valve HGL-1/8-NPT
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Festo

34877

Piloted non return valve HGL-1/8-NPT

The Festo part number 34877 is a screw-in industrial component featuring an unlockable check valve function with 1/8 NPT pneumatic connections 1 and 2. It operates at pressures from 0.03 MPa to 1 MPa (0.3 bar to 10 bar) and handles a normal nominal flow rate ranging from 0 l/min to 260 l/min using compressed air as per ISO 8573-1:2010 [7:4:4]. The unit functions within an ambient and medium temperature range of -20 °C to 80 °C, requires a pilot pressure of 2 bar to 10 bar (0.2 MPa to 1 MPa or 29 psi to 145 psi), and permits oil-lubricated operation which becomes mandatory for subsequent use. Submit the exact part number, quantity, and application requirements to receive a quote for this RoHS-compliant component.

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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
34877
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 34877.
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
1/8 NPT
Pneumatic connection 2
1/8 NPT
Type of mounting
Screw-in
Normal nominal ow rate (normalized to DIN 1343)
0 l/min...260 l/min
Operating pressure
0.03 MPa...1 MPa | 0.3 bar...10 bar
Pilot pressure MPa
0.2 MPa...1 MPa
Pilot pressure
2 bar...10 bar
Pilot pressure psi
29 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

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.

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 34877. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.