USD 279.10
24 V DC precision air regulator; 0.05–12 bar control range, secondary venting, and high nominal flow for stable pneumatic pressure control.
Festo MS6-LRP-1/2-D7-A8M-WR is a size 6, pilot-controlled precision pressure regulator for compressed-air and inert-gas systems. The exact 538028 configuration supports an operating pressure of 0.1 to 1.4 MPa (1 to 14 bar), regulation range of 0.05 to 12 bar, secondary venting flow of 220 to 900 l/min, and standard nominal flow of 800 to 9000 l/min. It is powered by 24 V DC with a 21.6 to 26.4 V DC operating range and 4.2 W maximum electrical power consumption. The unit is intended for industrial pressure stabilization with selectable pressure gauge and connection variants, and is certified for EU/UK explosion-protection-related use cases in the documented configuration.
| Parameter | Value |
|---|---|
| Size | 6 |
| Series | MS |
| Structural design | Pilot-controlled precision diaphragm regulator / pilot-controlled piston control valve |
| Controller function | Outlet pressure constant; with secondary exhausting |
| Operating pressure | 0.1 MPa ... 1.4 MPa (1 bar ... 14 bar) |
| Pressure regulation range | 0.05 bar ... 12 bar |
| Max. pressure hysteresis | 0.02 bar ... 0.05 bar |
| Flow rate of secondary venting | 220 l/min ... 900 l/min |
| Standard nominal flow rate | 800 l/min ... 9000 l/min |
| DC operating voltage range | 21.6 V ... 26.4 V |
| Nominal operating voltage DC | 24 V |
| Max. electrical power consumption | 4.2 W |
| Max. current consumption | 0.16 A |
| Residual ripple | 10 % |
| Analog input signal range | 0 - 10 V; 4 - 20 mA |
| Certification | c UL us - Recognized (OL) |
| CE marking | EU EMC directive; EU explosion protection directive (ATEX); EU RoHS directive |
| UKCA marking | UK EMC; UK EX; UK RoHS |
| Explosion protection certification outside the EU | EPL Db (GB); EPL Gb (GB) |
| Explosion prevention and protection | Zone 1 (ATEX); Zone 1 (UKEX); Zone 2 (ATEX); Zone 21 (ATEX); Zone 21 (UKEX); Zone 22 (ATEX) |
| ATEX category gas | II 2G |
| ATEX category for dust | II 2D |
| Type of ignition protection for gas | Ex h IIC T6 Gb X |
| Type of ignition protection for dust | Ex h IIIC T60°C Db X |
| Explosive ambient temperature | -10°C <= Ta <= +60°C |
| Operating medium | Compressed air as per ISO 8573-1:2010 [7:4:4]; inert gas |
| Information on operating and pilot media | Ester oil < 0.1 mg/m³ according to ISO 8573-1:2010 [-:-:2] |
| Operation with oil lubrication | Not possible |
| Corrosion resistance class (CRC) | 2 - Moderate corrosion stress |
| LABS (PWIS) conformity | VDMA24364-B1/B2-L |
| Storage temperature | -10 °C ... 60 °C |
| Temperature of medium | -10 °C ... 60 °C |
| Ambient temperature | -10 °C ... 60 °C |
| Product weight | 800 g ... 1120 g |
| Type of mounting | Front panel mounting; line installation; with accessories |
| Pilot air port 12 | G1/8; 1/8 NPT |
| Pneumatic connection 1 | G1/4; G3/8; G1/2; G3/4; 1/4 NPT; 3/8 NPT; 1/2 NPT; 3/4 NPT |
| Pneumatic connection 2 | G1/4; G3/8; G1/2; G3/4; 1/4 NPT; 3/8 NPT; 1/2 NPT; 3/4 NPT |
| Pneumatic connection 3 | G1/4 |
| Seals material | NBR |
| Housing material | Aluminum |
Use in compressed-air manifolds feeding clamps, grippers, or torque tools where constant outlet pressure is needed despite upstream variation. The 0.05 to 12 bar control range and secondary exhausting help maintain repeatable actuator performance.
Prevents pressure drift that causes inconsistent clamping force or tool output.
Suitable for industrial gas or air control panels in documented Zone 1/2/21/22 environments, where ATEX/UKEX-related certification and -10 °C to +60 °C ambient range are relevant.
Provides regulated pneumatic pressure in hazardous areas without selecting a non-rated control element.
Fit for machine sections needing substantial air throughput, such as multi-axis automation islands or larger pneumatic circuits. The 800 to 9000 l/min nominal flow range supports pressure regulation without excessive bottlenecking.
Avoids pressure collapse in high-demand pneumatic branches.
