Flange Type


Design Advantages

• Full 5-5/8" diameter port

    • Valve can be installed in both upstream and downstream directions for simple easy, safe system maintenance.

    • Stem has internal land above ball that is pressure seated to the body protecting the stem and stem seal from contaminants.

    • Long life self lubricated TFE seats that are easily replaceable.

    • Inmeasurable pressure drop.

    • Handle indicates valve open/close position

    • Safety design blowout proof stem.

    • Standard ANSI B16.5 class 150 flange connection

    • All valves are hydrostatically tested before being shipped.

Materials Of Construction

NOTE:Drawings with dimensions of the bracket and coupling are available by contacting TVI.



VITON® is a trademark of DuPont Performance Elastomers
TEFLON® is a trademark of DuPont Performance Elastomers


Ansi Dimensions
Testing performed on PVC/PP/EPDM valves at 73°F water temperature, non-shock.
Safety Block - True Union Ball Valves
Design Specifications

Thermoplastic Ball Valves 1/2"-3" are designed to safely block full system pressure in either direction to allow on-line system maintenance. Valve stem is of the blow-out proof design. Valve has full port for lowest possible pressure loss. Seats shall be easily adjustable and replaceable. Stem has an internal pressure sealed land to protect stem and stem seal from contaminants. Four hole mounting pad is standard on top and bottom. Every valve is fully pressure and cycle tested before leaving the factory. Brass inserts are provided on both top and bottom of valve body for actuation and or panel installation. Materials of construction shall be: (select as required for service)


Body/Ball/Stem/End Nuts and Connectors

PP, ASTM D-4101



PTFE (Polytetrafluoroethylene), Teflon® ( DuPont Performance Elastomers)



EPDM, Ethylene Propylene Diene Monomer
Fluorocarbon. Viton® (DuPont Performance Elastomers)
Fluorel (3M Corp.)


T - Handle

ABS, ASTM D-1788


End connectors shall conform to the following standards:



ASTM - D-2467 (PVC, SCH-80)
ASTM - F-439 (CPVC, SCH-80)



ASTM - D-2464 (PVC, SCH-80)
ASTM - F-437 (CPVC, SCH-80)



ANSI - B16.5 Class 150

Both socket and threaded end connectors shall be supplied on all 1/2" - 2" PVC and CPVC valves. On 2-1/2" - 4" socket end connectors will be supplied unless otherwise specified.


Valves shall be backed by a full two (2) year guarantee.

Not recommended for compressed air or gas service.