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Sealey SA4FR/38 Air Filter/Regulator

Heavy-duty aluminium alloy valve assembly with integral filter.Airflow control knob can be locked in position to prevent accidental adjustment of pressure

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Sealey SA4FR/38 Air Filter/Regulator

The Sealey SA4FR/38 Air Filter/Regulator is a precision-engineered component designed for high-performance air systems. It combines an efficient filtration mechanism with a robust pressure regulation function, making it ideal for compressors, pneumatic tools, and industrial ventilation setups that demand clean, stable airflow.

Key Functionalities

  • Dual Action: Simultaneously filters incoming air and regulates pressure to a set value, ensuring consistent delivery regardless of upstream fluctuations.
  • High Flow Capacity: Rated at up to 76 cfm, it supports demanding applications without compromising on filtration quality.
  • Pressure Range: Operates effectively within a pressure window of 0–174 psi (0–12 MPa), suitable for both low‑ and high‑pressure systems.
  • Compact Design: The 3/8" BSP male to 1/4" BSP male configuration allows seamless integration into existing piping without the need for additional adapters.

Construction & Materials

The SA4FR/38 is built from high‑grade steel and brass alloys, chosen for their corrosion resistance and durability under continuous operation. The filter element itself utilizes a multi-layered media that captures particulates as small as 5 microns, protecting downstream equipment from wear.

Installation Guidelines

  1. Preparation: Ensure the air source is clean and free of debris before connecting the regulator. Verify that all fittings are compatible with the 3/8" BSP male and 1/4" BSP male threads.
  2. Connection: Screw the SA4FR/38 onto the upstream pipe using a torque wrench set to 12–15 ft‑lb. Tightening beyond this range may damage the threads, while insufficient torque can lead to leaks.
  3. Pressure Setting: Adjust the internal pressure dial to the desired operating value. The regulator’s built‑in gauge provides real‑time feedback for precise control.
  4. Leak Check: After installation, perform a leak test by applying a soapy water solution around all joints. Bubbles indicate a seal issue that should be addressed immediately.

Operational Benefits

  • Enhanced Equipment Longevity: By filtering out contaminants, the regulator protects motors, valves, and other pneumatic components from premature failure.
  • Consistent Performance: Pressure regulation ensures that tools receive a steady airflow, improving accuracy and reducing downtime.
  • Energy Efficiency: Stable pressure reduces the need for compressor over‑run, saving energy and lowering operating costs.
  • Versatility: Suitable for both industrial and workshop environments, from large-scale manufacturing lines to small repair shops.

Maintenance & Care

Regular maintenance keeps the SA4FR/38 performing at peak levels. Follow these steps annually or as needed based on usage intensity:

  1. Filter Replacement: Inspect the filter media for clogging. Replace it when airflow drops below 70% of rated cfm.
  2. Thread Inspection: Check all threaded connections for wear or corrosion. Clean with a dry brush and reapply thread sealant if necessary.
  3. Pressure Dial Calibration: Verify that the pressure gauge reads accurately by comparing it to a calibrated reference device.

Applications Across Industries

The Sealey SA4FR/38’s robust design makes it suitable for a wide range of settings:

  • Aerospace: Maintaining clean, regulated air for sensitive instrumentation.
  • Automotive Repair: Supplying reliable airflow to pneumatic tools and diagnostic equipment.
  • Manufacturing: Supporting assembly lines that require precise pressure control for injection molding or paint spraying.
  • Laboratory Research: Delivering sterile, filtered air for experimental setups where contamination must be minimized.

Technical Specifications Summary

FeatureDescription
ModelSA4FR/38
Thread Sizes3/8" BSP Male → 1/4" BSP Male
Pressure Range0–174 psi (0–12 MPa)
Flow CapacityUp to 76 cfm
Filter MediaMulti‑layer, <5 µm capture
MaterialSteel/Brass alloy construction
Torque Specification12–15 ft‑lb

Conclusion

The Sealey SA4FR/38 Air Filter/Regulator delivers a reliable blend of filtration and pressure control, essential for maintaining the integrity and efficiency of pneumatic systems. Its compact form factor, high flow capacity, and durable construction make it an indispensable component for professionals who demand precision and longevity in their air handling solutions.


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- Engine Air Filters
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Brand Sealey

The Sealey brand is a British manufacturer of tools, garage equipment and automotive accessories. The company was founded in 1919 and has been producing high-quality tools and equipment for over 90 years. Sealey products are sold in over 100 countries and the company has a reputation for producing reliable, durable equipment.
Model Sealey SA4FR/38
MPN Sealey SA4FR/38
ID 13886776
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