TVI Custom Valves
Custom Valve Solutions

Safety Block Ball Valve


TVI Valves
True Union Type (1/2" - 3")
  • Safely blocks in both upstream and downstream direction.
  • Double union design permits easy piping system installation.
  • Stem has internal land above ball that is pressure seated.
  • Long life self lubricated TFE seats are externally adjustable.
  • True full port design has immeasurable pressure drop.
  • Valve body can be rotated 360° for actuation clearance.
  • Handle indicates valve open/close position.
  • Safety design blow-out proof stem.
  • Available in socket, threaded, or flanged end configurations.
  • Handle indicates valve open/close position.
  • Safety design blow-out proof stem.
  • Available in socket, threaded, or flanged end configurations.

nsf approved

Schematics


ITEM PARTS PCS MATERIALS
1 Stem 1 PVC,PP,CPVC,PVDF
2 Ball 1 PVC,PP,CPVC,PVDF
3 Body 1 PVC,PP,CPVC,PVDF
4 Seat Carrier 1 PVC,PP,CPVC,PVDF
5 Union Nut 2 PVC,PP,CPVC,PVDF
6 Handle 1 ABS
7 End Connector 2 PVC,PP,CPVC,PVDF
8 Seat 2 TEFLON®
9 Stem O-Ring 1 EPDM,VITON®
10 Seat Carrier O-Ring 1 EPDM,VITON®
11 Body O-Ring 1 EPDM,VITON®
12 Solid End O-Ring 1 EPDM,VITON®
13 Flange 2 PVC,PP,CPVC,PVDF

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

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. Every valve is fully pressure and cycle tested before leaving the factory. Materials of construction shall be: (select as required for service)

Body/Ball/Stem/End Nuts and Connectors

PVC, CPVC, ASTM D-1784
PP, ASTM D-4101
PVDF, ASTM D-3222

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

Seals - 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:

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

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

Flanged - 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.