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Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Festo
33971
Vacuum security valve ISV-3/8
The Festo industrial component, part number 33971, features a G3/8 pneumatic connection 1 and G3/8 pneumatic connection 2 with a screw-in mounting type that supports any mounting position. Weighing 33 g, this G3/8 unit operates within a pressure range of -95 kPa to 0 kPa using compressed air conforming to ISO 8573-1:2010 [7:-:-] and provides a required suction rate of 1.5 l/min at -0.5 bar. The assembly utilizes a wrought aluminum alloy housing, wrought aluminum alloy hollow bolt, wrought aluminum alloy and stainless steel mesh compressed air filter, high-alloy steel spring, and POM float, achieving a corrosion resistance class (CRC) of 2 and VDMA24364-B2-L LABS conformity for ambient temperatures between -10 °C and 60 °C with ejector pulse suitability up to 8 MPa. Submit the exact part number, quantity, and application requirements for 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
- 33971
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 33971.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- G3/8
- Ejector pulse suitability
- 8 MPa | 8 bar
- Mounting position
- Any
- Operating pressure
- -95 kPa...0 kPa | -0.95 bar...0 bar
- Required suction rate at -0.5 bar
- 1.5 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:-:-]
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B2-L
- Ambient temperature
- -10 °C...60 °C
- Product weight
- 33 g
- Type of mounting
- Screw-in
- Pneumatic connection 1
- G3/8
- Pneumatic connection 2
- G3/8
- Material of spring
- High-alloy steel
- Compressed air lter material
- Wrought aluminum alloy | Stainless steel mesh
- Housing material
- Wrought aluminum alloy
- Hollow bolt material
- Wrought aluminum alloy
- Float material
- POM
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 33971. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.