Type-21a SST Flow Control True Union Ball Valve (1/2″ – 2″)
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Ball Valves

Type-21a SST Flow Control True Union Ball Valve (1/2″ – 2″)

The Type-21a SST PVC flow control ball valve provides a modified equal percentage flow control, with repeatable results across the span of travel. It is available in ½” – 2” true union sizes and features a precision-machined PVC ball with center provisions to support PTFE seats from zero to 100 percent of capable flow. The characterized ball valve requires directional installation and comes equipped with a flow direction label.

 

Resources:

Data Sheet

Ideal Applications:

Isolation valves, water treatment, water features, fountains, aquariums, landfills, swimming pools, power plants, mining, transportation, chemical processing

Position Indication from Closed to Open

0% Open
50% Open
100% Open

Specifications:

Size:

1/2″ – 2″

Bodies Materials:

PVC

Seals Materials:

EPDM/FKM

Body Type:

True Union

  • PVC body
  • 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)
  • Indicator line on handle (manual type)
  • Flow direction arrow label
  • Handle doubles as carrier adjustment tool
  • ISO 5211 top flange bolt pattern
  • Integrally molded base pad for panel mounting
  • Dual stem O-rings

Electric Actuation

  • See Type-21/21a ball valve for options