User Guide

12 © Copyright 2008 TAC All Rights Reserved. F-27197-4
MAINTENANCE &
FIELD REPAIR
Regular maintenance of the total system is recommended to assure sustained performance.
See Figure-9 and Table-6 for maintenance kits and their part numbers.
Caution: Before loosening or removing packing cartridge, depressurize valve to zero psi
gauge (0 psig). If the packing cartridge is loosened or removed while there is pressure in
the valve, valve packing may blow out with the potential of bodily injury and/or water
damage.
Caution: EPDM components are not compatible with petroleum-based compounds. Use
of such compounds will damage packings and wiper “O” rings and necessitate replacement
of packing cartridge and/or wiper “O” ring.
Table-6 Maintenance Kits for VB-8303 Valves
Valve Body
Part Number
Size
Kit 1 Kit 2 Kit 3 Kit 4 Kit 5 Kit 6
Packing
Cartridge
Bracket
Nut
Bottom
Gasket
Wiper "O" Ring
Valve Seat/
Port Assemblies
Valve Repair
Kit
VB-8303-0-5-12 2-1/2”
YBA-652-2 OYBB-225
BYRZ-13-12 NYBA-8303-104-0-12 YBA-830-101-0-12 RYB-830-12
VB-8303-0-5-13 3” BYRZ-13-13 NYBA-8303-104-0-13 YBA-830-101-0-13 RYB-830-13
VB-8303-0-5-14 4” BYRZ-13-14 NYBA-8303-104-0-14 YBA-830-101-0-14 RYB-830-14
VB-8303-0-5-15 5" BYRZ-13-15 NYBA-8303-104-0-15 YBA-830-101-0-15 RYB-830-15
VB-8303-0-5-16 6" BYRZ-13-16 NYBA-8303-104-0-16 YBA-830-101-0-16 RYB-830-16
Kits 1 and 6
Packing CartridgeKit
Kit 6
Stem and Plug
Assembly
Kits 4 and 6
Wiper "O" Ring
Kits 3, 5, and 6
Bottom Gasket
Kit 5
Top Seat Assembly
Kits 1, 2, and 6
Bracket Nut
Kit 5
Valve Seat/
Port Assemblies
Note: Refer to accompanying table
for kit part numbers.
1
1 3
2
2 3
3
3
1
1 Valve Seat/Port Assemblies Kit includes
bottom gasket, bottom seat, lower port
assembly and top seat assembly.
2 Packing Cartridge Kit includes bracket nut and
packing cartridge.
3 Valve Repair Kit includes packing cartridge,
bracket nut, stem and plug assembly, bottom
gasket, and wiper "O" ring.
(Left hand thread)
3
Figure-9 VB-8303 2-1/2" to 6" Maintenance Parts