Designed for Potable Well
Water and Booster Pump Systems.
The Series “WT” expansion tank will help protect the pump and pressure switches
against short cycling. The Potable well tank delivers adequate water under pressure
between pump cycles to meet the required demand. It will provide economical system
operation by minimizing pump starts, extending pump motor life, and saving energy. The
“WT” tank will also assist the pump in meeting peak demand. 
• Minimize Pump Run Times, Extends Life of Pump
• FDA Approved Materials
• High Maximum Operating Temperatures
• High Maximum Working Pressures
CONSTRUCTION
Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.Steel
System Connection . . . . . . . . . . . . . . . . . . . . . . . . . .Malleable Iron
WT-401 – WT-405 . . . . . . . . . .Butyl Diaphragm, Polypropylene Liner
WT-421 – WT-457 . . . . . . . . . . . . . . . . . . . . . . . . . . . .Butyl Bladder
Factory Precharge:
WT-401 – WT-405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 PSIG
WT-421 – WT-457 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 PSIG
PERFORMANCE LIMITATIONS
Maximum Design Pressure:
WT-401 – WT-405 . . . . . . . . . . . . . . . . . . . .150 PSIG (1035kPa)
WT-421 – WT-427 . . . . . . . . . . . . . . . . . . . . .100 PSIG (689kPa)
WT-447 – WT-457 . . . . . . . . . . . . . . . . . . . .150 PSIG (1035kPa)
Maximum Design Temperature:
WT-401 – WT-405 . . . . . . . . . . . . . . . . . . . . . . . . . . 200ºF (93ºC)
WT-421 – WT-457 . . . . . . . . . . . . . . . . . . . . . . . . . 240ºF (116ºC) |
