Pro-source NUFR-04N Frl Combo Unit 1/2 Npt 91.81 Scfm

Product Description

The PRO-SOURCE NUFR-04N is a three-stage FRL combination unit that integrates a filter, regulator, and lubricator into a single inline assembly for compressed-air systems. It handles a maximum supply pressure of 145 psi and a flow rate of 91.81 SCFM through a 1/2 NPT port, making it well-suited for industrial and production-floor pneumatic circuits. The aluminum filter bowl has a 3.6 oz capacity and features a semi-automatic drain, a sight glass for fluid-level monitoring, and a bowl guard for physical protection. A pressure gauge is included. Licensed pipefitters, pneumatic technicians, and industrial maintenance mechanics are the primary installers.

The NUFR-04N fits standard compressed-air distribution lines in manufacturing, assembly, and process environments where air quality and regulated pressure are required upstream of pneumatic tooling, actuators, or control valves. It operates across a temperature range of 14 degrees F to 140 degrees F, covering most indoor industrial service conditions. The modular connection design allows it to be combined with additional FRL modules where system requirements call for expanded filtration or lubrication stages. Mounting brackets are included for panel or rail installation.

Key Features

• Three-stage FRL design combines filter, regulator, and lubricator in one assembly
• 91.81 SCFM flow capacity through a 1/2 NPT port
• 145 psi maximum supply pressure rating
• 0.5 micron filtration rating removes fine particulate from the air supply
• Semi-automatic drain on aluminum filter bowl with sight glass and bowl guard
• Modular connection design supports multi-unit FRL configurations
• Pressure gauge, bowl guard, and mounting brackets included

Compatibility

Designed as an OEM-style inline FRL unit for compressed-air systems with 1/2 NPT porting where supply pressure does not exceed 145 psi and ambient operating temperature stays within 14 degrees F to 140 degrees F.

Installation Notes

Installation should be performed by a qualified pneumatic or industrial maintenance technician. Depressurize and lock out the compressed-air supply before any connection or disassembly work. Mount the unit vertically with the bowl oriented downward to allow proper drainage function. Verify that upstream supply pressure does not exceed the 145 psi rated maximum before returning the system to service.