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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
538834
Vacuum generator OVEM-05-H-B-QO-CN-N-2P
The Festo part number 538834 is a modular industrial component featuring a 0.45 mm nominal width Laval nozzle, a 20 mm width dimension, an open muffler construction type, and an any mounting position capability. It integrates an electric on-off valve, filter, open muffler, and a piezoresistive vacuum switch measuring relative pressure from -0.999 bar to 0 bar on a 4-digit backlit alphanumeric LCD supporting bar units. This unit provides high vacuum and standard ejector characteristics, 40 µm filtration grade, non-detenting manual override with control keys, NC or N.O. switching element functions, window and threshold value comparator switching functions, closed valve function, short-circuit protection, reverse polarity protection for all electrical connections, and switching inputs conforming to IEC 61131-2. Submit the exact part number, quantity, and application requirements for 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
- 538834
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 538834.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Nominal width of Laval nozzle
- 0.45 mm
- Width dimension
- 20 mm
- Muffler construction type
- Open
- Mounting position
- Any
- Ejector characteristics
- High vacuum | Standard
- Grade of ltration
- 40 µm
- Manual override
- Non-detenting | Also via control keys
- Integrated function
- Electric on-off valve | Filter | Muffler open | Vacuum switch
- Structural design
- Modular
- Short-circuit protection
- Yes
- Measured variable
- Relative pressure
- Measuring principle
- Piezoresistive
- Switching element function
- NC contact | N.O. contact
- Switching function
- Window comparator | Threshold value comparator
- Valve function
- Closed
- Reverse polarity protection
- for all electrical connections
- Switching input to standard
- IEC 61131-2
- Display type
- 4-digit, alphanumeric | Backlit LCD
- Display range
- -0.999 bar...0 bar
- Displayable unit(s)
- bar
- Setting range hysteresis
- -0.9 bar...0 bar
- Setting options
- Via display and keys
- Switching position indication
- LCD
- Switching status indication
- Optical
- Setting range threshold value
- -0.999 bar...0 bar
- Operating pressure
- 2 bar...8 bar
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 538834. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.