GRACO Back-Up Ring for Trabon Electrical/Mechanical Actuated Lube Pump, -022 PTFE - (SKU: 555791)The GRACO 555791 is a back up ring made from PTFE (polytetrafluoroethylene), designed for use in Trabon electrical or mechanical actuated lube pumps. Its primary function is to provide support and sealing within the pump assembly, ensuring reliable operation and preventing leakage. Key Features: Back Up Ring 022 PTFE PTFE (polytetrafluoroethylene) Trabon Electrical Mechanical Actuated Lube Pump Split cut design for easy installation and maintenance

Used as a replacement or upgrade part for GRACO Edge II HVLP spray guns in various finishing applications

and protect pumps and downstream equipment

It is designed for use with stainless steel (SST) and BSPT connections

Compatible with GRACO GrindLazer and similar equipment requiring a hex drive shaft

Replace gaskets as part of routine maintenance to prevent leaks and equipment downtime

Visual cycle indicator for easy monitoring

The GRACO TE120-0008 QUANTM Pump is an electric-operated double diaphragm (EODD) pump featuring an all-aluminum fluid section for abrasion and mild corrosion resistance

Designed for reliable attachment and mounting

and general surface cleaning tasks

if specified for your model

601809 (4-1/2" ID

Follow manufacturer guidelines for nozzle and aircap replacement