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The NORGREN 4215-03 is a pipe mounting modular adapter designed for use with compact compressed air filters in FRL (Filter-Regulator-Lubricator) assemblies. Constructed from zinc, this adapter provides a rigid mounting interface that connects the filter unit to standard 3/8 inch pipe threads. It measures 1.16 inches in height and weighs 0.24 pounds. Licensed HVAC technicians, pipefitters, and industrial maintenance professionals install this component when building or servicing modular compressed air treatment systems. Its compact form factor suits tight panel or pipe-mounted installations where space is limited.
This adapter is intended for modular compressed air filter assemblies operating in light industrial, commercial mechanical, and process environments. It mounts directly to 3/8 inch pipe and serves as the structural and pneumatic interface between the compressed air supply line and the compact filter body. Typical applications include pneumatic control panels, compressed air drops in mechanical rooms, and inline air treatment stations where modular FRL components are assembled in the field or at a workbench.
Designed for use with compact compressed air filters in modular FRL assemblies using 3/8 inch pipe connections.
Installation should be performed by a qualified pipefitter or mechanical technician familiar with compressed air system service. De-pressurize and lock out the compressed air supply line before removing or installing any FRL component. Verify thread type and hand-tighten before applying final torque to avoid cross-threading the zinc body. All work on compressed air systems should comply with applicable OSHA and local mechanical codes.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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