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Festo
8175243
Pressure regulator MS4-LR-1/4-D6-A8-F1A-B
The Festo Size 4 industrial component from the MS series features a structural design consisting of a pressure regulator without a pressure gauge and a directly controlled piston regulator with an actuator lock utilizing a rotary knob with detent. It delivers a constant output pressure with secondary exhausting and a return flow characteristic, operating within an inlet pressure range of 1 bar to 10 bar and a regulation range of 0.3 bar to 7 bar at a normal nominal flow rate of 1800 l/min for compressed air or inert gases. The unit offers an operating and ambient temperature range of -5 °C to 50 °C, a maximum pressure hysteresis of 0.5 bar, a G1/8 pressure gauge setup, and compliance with ISO 14644-1 Class 7 cleanroom standards along with VDMA24364-B1/B2-L LABS conformity. Submit the exact part number, quantity, and application requirements to request 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
- 8175243
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 8175243.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- 4
- Series
- MS
- Actuator lock
- Rotary knob with detent
- Mounting position
- Any
- Structural design
- Pressure regulator without pressure gauge | Directly controlled piston regulator
- Controller function
- Constant output pressure | With secondary exhausting | With return ow characteristic
- Pressure gauge
- Set up for G1/8
- Operating pressure
- 0.1 MPa...1 MPa | 1 bar...10 bar
- Pressure regulation range
- 0.3 bar...7 bar
- Max. pressure hysteresis
- 0.05 MPa | 0.5 bar | 7.25 psi
- Normal nominal ow rate (normalized to DIN 1343)
- 1800 l/min
- 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)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Suitability for the production of Li-ion batteries
- Suitable for battery production with reduced Cu/Zn/Ni values (F1a)
- Cleanroom suitability, measured according to ISO 14644-14
- Class 7 according to ISO 14644-1
- Storage temperature
- -5 °C...50 °C
- Temperature of medium
- -5 °C...50 °C
- Ambient temperature
- -5 °C...50 °C
- Product weight
- 163 g
- Type of mounting
- Alternatively: | Front panel mounting | In-line installation | With accessories
- Pneumatic connection 1
- G1/4
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 8175243. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.