Festo

FESTO MS Series Lubricators

The Festo MS Series Lubricators (MS-LOE) are engineered to deliver consistent, proportional oil mist to downstream pneumatic components—ensuring longer service life, smoother operation, and optimal system performance. Designed as part of Festo’s modular MS air preparation line, these lubricators integrate seamlessly into complete FRL systems (filter, regulator, lubricator).

  • Proportional Oil Dosing Maintains a stable oil-to-air ratio across varying flow rates for precise lubrication.
  • Top-Up Under Pressure Refill oil reservoirs quickly and safely—without system shutdown.
  • Modular Design Easily stack with other MS components, including filters, regulators, soft-start valves, and shut-off valves.
  • Multiple Sizes for Every System Available in MS2, MS4, MS6, MS9, and MS12, as well as narrow-body variants (MS4N, MS6N, MS12N).
  • Flow Rates from 600 to 22,000 l/min Configurable for compact tools or large-scale automation setups.
  • Durable Construction Choose from polycarbonate bowls with guards or heavy-duty metal bowls.

Part Number
Model Number
Series
Port Size
Connection Type
Bowl Type
Oil Capacity (cm³)
Flow Rate (l/min)
Operating Pressure (bar)
Min. Flow for Lubrication (l/min)
Mounting Position
MS6-LOE-1/2-R
MS6
G 1/2
G
Plastic with guard
75
7,200
1–16
50
Vertical ±5°
MS6-LOE-1/2-R-Z
MS6
G 1/2
G
Plastic with guard
75
7,200
1–16
50
Vertical ±5°
MS4-LOE-1/8-R
MS4
G 1/8
G
Plastic with guard
36
2,200
1–12
50
Vertical ±5°
531702
MS4N-LOE-1/4-R
MS4N
1/4" NPT
NPT
Plastic
36
2,200
1–12
50
Vertical ±5°
MS6N-LOE-3/8-R
MS6N
3/8" NPT
NPT
Plastic
75
5,300
1–16
50
Vertical ±5°
MS6N-LOE-1/2-R
MS6N
1/2" NPT
NPT
Plastic
75
7,200
1–16
50
Vertical ±5°
MS12-LOE-G-U
MS12
G 1
G
Metal
1,500
20,000–22,000
1–16
400
Vertical ±5°
MS9-LOE-G-U
MS9
G 1
G
Metal
490
8,500–27,000
1–16
100
Vertical ±5°