scope:

This 3-A Sanitary Standard covers the sanitary aspects of boot seal type valves used as components on processing equipment and pipelines that hold or convey milk, milk products, and other food products. The valve assembly includes an actuator moving a piston rod, a boot seal attached to the piston rod and supported by it, and a valve housing or body enclosing the boot seal and providing entry and exit points for the product. Product enters the boot seal type valve at the inlet connection and exits at the outlet connection.

In order to conform to this 3-A Sanitary Standard, Boot Seal Type Valves shall conform to the following criteria for design, materials of construction, fabrication techniques and installation, as appropriate, and the current revisions or editions of all referenced documents cited herein.