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Products/Festo/8167261
Festo 8167261 Pressure regulator MS2-LR-QS6-D6-AR-BAR-F1A-B
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Festo

8167261

Pressure regulator MS2-LR-QS6-D6-AR-BAR-F1A-B

The Festo Size 2 MS series industrial component (Part Number 8167261) features a directly controlled diaphragm regulator design providing constant output pressure with secondary exhausting and a return flow characteristic. Operating within a pressure range of 1 bar to 8 bar and a regulation range of 0.5 bar to 7 bar, this unit includes an integrated pressure gauge and a rotary knob actuator lock with detent. It achieves a normal nominal flow rate of 350 l/min using compressed air or inert gases, while meeting ISO 14644-1 cleanroom Class 6 standards and maintaining suitability for Li-ion battery production with reduced Cu/Zn/Ni values. Submit the exact part number, quantity, and application requirements to receive a quote for this 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
8167261
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 8167261.
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Verified configuration

Technical Specifications

Size
2
Series
MS
Actuator lock
Rotary knob with detent
Mounting position
Any
Structural design
Directly controlled diaphragm regulator
Controller function
Constant output pressure | With secondary exhausting | With return ow characteristic
Displayable unit(s)
bar | psi
Pressure gauge
with pressure gauge
Operating pressure
0.1 MPa...0.8 MPa | 1 bar...8 bar
Pressure regulation range
0.5 bar...7 bar
Max. pressure hysteresis
0.025 MPa | 0.25 bar | 3.625 psi
Normal nominal ow rate (normalized to DIN 1343)
350 l/min
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
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 6 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
36.1 g
Type of mounting
Alternatively: | Front panel mounting | In-line installation | With accessories
Pneumatic connection 1
QS-6
Pneumatic connection 2
QS-6

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 8167261. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.