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The PARKER PS751P is a modular port block kit designed for use with Parker Series 06 FRL (Filter-Regulator-Lubricator) assemblies. This kit provides a sealed port blocking solution for unused ports in modular FRL systems, using a nitrile seal material suited for general-purpose compressed air and compatible fluid applications. The 3/8 inch port size matches standard Series 06 component ports. HVAC, pneumatic controls, and industrial maintenance technicians use these kits to cap off open ports in a modular FRL lineup, maintaining system pressure integrity and preventing contamination ingress.
This port block kit is intended for modular FRL installations where one or more ports in the assembly are not connected to downstream equipment. It is commonly installed in light industrial, commercial HVAC controls, and production air supply systems where Parker Series 06 FRL components are already in service. The kit allows technicians to reconfigure or expand a modular FRL bank without replacing the entire assembly.
Designed for use with Parker Series 06 FRL modular components. Specific cross-compatibility with other Parker FRL series is not confirmed by available data and should be verified against Parker documentation before installation.
Installation should be performed by a qualified pneumatic or HVAC technician familiar with compressed air system service. Depressurize and isolate the FRL assembly completely before removing or installing any modular port block. Inspect the nitrile seal for damage before installation and do not over-torque the block fitting, as nitrile seals can deform under excessive force. Follow applicable facility lockout/tagout procedures when working on pressurized air systems.
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