GRACO Husky 515 Air-Operated Double Diaphragm Pump, 1/2" NPT - (SKU: D52911C31)The GRACO D52911C31 is an air operated double diaphragm pump featuring a polypropylene (PP) center section and body, with PTFE balls and diaphragms. It is designed for reliable, leak free transfer of a wide range of fluids, including those with small solids, in industrial and maintenance applications. Key Features: Air operated double diaphragm pump Husky 515, 1 2" NPT Polypropylene (PP) center section and body, PTFE balls and diaphragms, PP seats Up

automatic lubrication of machinery and equipment

Used in GRACO spray and lubrication systems to mount and support pumps

It includes an EP (ethylene propylene) ball

The kit is intended to shield air motors from environmental contaminants and mechanical damage

Ensure proper alignment of the coupler with the hose and equipment

continuous fluid movement

The GRACO 287031 is a repair kit designed to replace the internal needle and packing for Contractor II and Contractor II FTx airless spray guns

Use appropriate thread sealant for leak-free connections

ensuring smooth operation and reduced wear in lubrication and maintenance systems

Designed for use with GRACO fluid dispensing and air control systems

specifically for models compatible with the 16N238 kit

Ensure the air breather or air exhaust line is securely connected to the air exhaust port