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Army Sustainment Command - Redstone Arsenal Detachment
Army Sustainment Command - Redstone Arsenal Detachment
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NEWS
| Dec. 16, 2020
Tactical Water Purification System: New Chemical Feed Pump
1500 GPH TWPS (Photo Courtesy of TACOM)
Soldiers,
The chemical feed pumps for the 1500-GPH Tactical Water Purification System (TWPS) are obsolete. The replacement is a newer LMI pump that comes with NSN 4320-01-526-9652.
The components and operating procedures of the new pump are a little different than the previous model. Here’s what changed:
The only adjustment dial is the speed setting.
You only need to adjust the speed of the pump. The stroke is internally set and remains constant.
Set the Bisulfite & Antiscalant pumps’ speed setting to 30.
Initially set the chlorine pump to 30 and adjust it as necessary, based on the water flow rate and chlorine residual readings.
The pump is equipped with an AutoPrime™ degassing head.
There’s no need to prime the pump because the liquid end is equipped with a valve that automatically keeps the pump primed.
Pay close attention to the installation procedures that come with the pump. The return line comes out of the top of the pump and should be returned to the supply tank. During operation, a small amount of solution will continuously flow out of the return line. To ensure priming,
don’t
submerge this tubing in the solution or let the tubing become submerged.
The horizontal fitting is the discharge and the bottom vertical fitting is the suction.
TWPS Autoprime Diagram (Photo Courtesy of TACOM)
Check out TM 10-4610-309-10 (May 08) for more info.
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