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What is Water Hammer?
systems with long pipes. Water hammer is a rapid change
entire system is raised very quickly.
What Causes Water Hammer?
Any action that can cause a rapid change in the velocity
downstream valve, pump stoppage, etc. Typically, for short
are closed within 1/10 of a second can generate
water hammer.
What Can Water Hammer Do?
to dangerously high values. These pressure spikes can cause
serious damage to valves, pipes, strainers, joints, etc. The
CS strainer is rated to an absolute maximum pressure of 150
psi for bolted lid models, and 125 psi for clamped lid models.
A water hammer pressure spike that raises the pressure
higher than the maximum rated pressure may result in
strainer damage, voiding the manufacturer’s warranty.
What Can I Do to Prevent Water Hammer?
There are certain precautions that can be taken to prevent
relief valve strategically located within the water system
water hammer. Careful attention should be given to the
design and control strategy for valves and pumps so their
actions do not invite a water hammer.
Stainless Steel Strainer Options
Automatic Timer Flush (ATF) Package Option
strainer’s reservoir. The power supply and timer controls for
the valve package are housed inside the ATF control box.
System Components
1.
2.
Figures 29 and 30).
Figure 29
A
GREEN POINTER
INNER RING
(LENGTH OF FLUSH)
(FACTORY SET AT
8-SECONDS)
RED POINTER
OUTER RING
(TIME BETWEEN
FLUSHES)
(FACTORY SET AT
24-HOURS)
Figure 30
B
12VDC@2.5A POWER
FROM PDA OR 120V PLUG
IN TRANSFORMER
OPEN/CLOSE
INDICATOR
COVER-PLATE SCREWS
(4) IN CORNERS OF BOX
(TIMER BASED VALVE
CONTROLLER)
CONTROL SWITCH
Figure 31
Valve Specications (See Figure 31)
A. Water-resistant polypropylene motor case
B. High torque motors with perma-lube gears
C. Open and close indicator
D. Stainless steel ball valve and hardware
E. Auto reset circuit breaker
F. 90° bi-directional rotation
G. Controller case
Stainless Steel Strainer Option
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