Introducing the Type-21a Seat Support Technology (SST) flow control ball valve which offers all of the robust elements of the Type-21 ball valve and the ability to precisely control flow.
Available PVC body
½” thru 2”
EPDM or FKM seals
True union design
Equal percentage flow characteristics
Precision machined flow control ball and seat design
SST - Seat Support Technology
Degreed indicator plate (manual type)