|
| Materials
Of Construction |
| Item |
Parts |
Pcs |
Materials |
| 1 |
Body |
1
|
PVC,CPVC,PP,PVDF |
| 2 |
Ball
|
1
|
PVC,CPVC,PP,PVDF |
| 3 |
Seat
Carrier |
1
|
PVC,CPVC,PP,PVDF |
| 4 |
Connector |
1/2
|
PVC,CPVC,PP,PVDF |
| 5 |
Union
Nut |
1/2 |
PVC,CPVC,PP,PVDF |
| 6 |
Seat
|
1 |
EPDM,VITON® |
| 7 |
Seat
Carrier O-Ring |
1 |
EPDM,VITON® |
| 8 |
Solid
End O-Ring |
1 |
EPDM,VITON® |
| 9 |
Flanged
Cut |
1 |
PVC,CPVC,PP,PVDF |
| 10 |
Foot
Valve Screen Assembly |
1 |
PVC |
|
VITON®
is a trademark of Dupont Dow Elastomers
TVI BALL CHECK VALVES (1/2" - 4")
DESIGN
SPECIFICATIONS
Thermoplastic Ball Check Valves (1/2" - 4") are of all thermoplastic
construction. Body has full length ribs for maximum flow, minimum
pressure drop, and to eliminate ball sticking and chatter. Ball
is of solid thermoplastic material. Seat is full circle and
resilient. A molded gasket seal and seat enlarges seating surface
and facilitates maintenance. Valves require less than one (1)
PSI to open and 3 -5 PSI to close drop tight. Valves are capable
of installation in either vertical or horizontal pipe run. Valves
are readily adaptable for foot valve service with the addition
of a screen assembly. Materials of construction shall be as
follows: (select as required for service)
BODY/UNION
NUT / END CONNECTORS
PVC, CPVC, ASTM D-1784
PP, ASTM D-4101
PVDF, ASTM D-3222
BALL
PVC,CPVC, ASTM D-1784
PP,ASTM D-4101
PVDF,ASTM D-3222
SEAT/SEAL
EPDM, Ethylene - Propylene Diene Monomer
Fluorocarbon - Viton (Dupont Dow Elastomers)
Fluorel (3M Corp.)
End
connectors shall conform to the following standards:
SOCKET
ASTM - D-2467 (PVC,SCH-80)
ASTM, F-437 (CPVC, SCH-80)
THREADED
ASTM - D-2464 (PVC, SCH-80)
ASTM - F-437 (CPVC, SCH-80)
FLANGED
ANSI - B16.5 Class 150
Not
recommended for compressed air or gas service.
|