DESIGN ADVANTAGES
- Safely blocks in
both upstream and downstream direction for simple easy, safe system
maintenance.
- Double union
design permits quick, easy piping system installation, removal,
maintenance.
- Stem has
internal land above ball that is pressure seated to the body protecting
the stem and the stem seal from contaminants in the fluid media.
- Long life self
lubricated TFE seats are externally adjustable, fully replaceable.
- True full port
design has immeasurable pressure drop.
- Valve body can
be rotated 360?for actuation clearance in system.
- Handle indicates
valve open/close position.
- Safety design
blow-out proof stem.
- Available in
socket, threaded, or flanged (ANSI B16.5 class 150) end configurations.
- PVC safety block
ball valves ( 1/2" thru 2" sizes) are provided with socket and
threaded end connectors without additional cost inventory requirements.
- All valves are
hydrostatically tested.
- Pneumatic (air
to air, air to spring) and electric actuation available.
- All TVI safety
block ball valves are backed by our two (2) year guarantee.
- Available
locking handles, stem extensions, 2" square nut operation
Materials Of Construction
|
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?/small>
|
9
|
Stem O-Ring
|
1
|
EPDM,VITON?/small>
|
10
|
Seat Carrier O-Ring
|
1
|
EPDM,VITON?/small>
|
11
|
Body O-Ring
|
1
|
EPDM,VITON?/small>
|
12
|
Solid End O-Ring
|
1
|
EPDM,VITON?/small>
|
13
|
Flange
|
2
|
PVC,PP,CPVC,PVDF
|
VITONŽ is a trademark of
Dupont Dow Elastomers
TEFLONŽ is a trademark of E.I. Dupont
SAFETY BLOCK - TRUE UNION BALL VALVES
DESIGN
SPECIFICATIONS
Thermoplastic Ball Valves 1/2" - 4" 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 (E.I. DuPont)
SEALS
EPDM, Ethylene Propylene Diene Monomer
Fluorocarbon. Viton (E.I.DuPont)
Fluorel (3M Corp.)
MANUAL LEVER
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.
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