GRACO 1/4 Ball Valve with Relief - (SKU: 6311-381)The GRACO 6311 381 is a 1 4 inch ball valve equipped with a relief feature, designed to provide precise control and reliable pressure relief within GRACO fluid handling equipment. Material details are not specified, but typical GRACO valves use robust materials such as steel, aluminum, or engineered plastics for durability. This valve is intended to maintain efficiency and performance in various GRACO machinery by ensuring safe pressure management and

Always use GRACO-approved parts and tools for installation and maintenance

such as inorganic zinc primers

It is intended to provide efficient atomization and a consistent spray pattern

Used in automatic lubrication systems for vehicles and equipment

Inspect and clean all related components before installation

39" Bolton

HP-50 and HP-60 High Pressure Lubricators

particularly for transferring materials from 400 lb drums using compatible GRACO pumps

Install new diffuser into gun and torque to 155-165 in-lb (18-19 N•m)

likely for monitoring cycles

Enables remote switch operation

Designed for GRACO conventional air spray systems