Industrial 97-028-4-20AF Manual Valve One Quarter Inch NPT

BELLOWS VALVAIR manual valve 97-028-4-20AF (alternate listing 97028420AF) is an industrial, manually operated valve with a 1/4" NPT connection. This valve is designed for straightforward isolation and flow control in piping systems where no actuation is required, delivering reliable manual control in maintenance and commissioning tasks. The 1/4-inch NPT threaded port is a standard size that facilitates integration with common fittings, tubes, and manifolds used in a variety of industrial applications. The model number 97-028-4-20AF uniquely identifies this Valvair valve across supplier catalogs and inventory systems, while 97028420AF serves as an additional cross-reference for ordering. Because it is a manually operated device, it is well suited for installations where simple hand operation is preferred or where automated actuation is not available or necessary. The 97-028-4-20AF and 97028420AF identifiers aid cross-referencing in catalogs and procurement records for accurate replacement and stocking. Cross-referencing this part with supplier catalogs helps ensure compatibility when replacing existing equipment.