Page 11 - Eaton - Automatic self-cleaning strainers

Model 2596 Automatic Self-Cleaning Strainers
Control

Systems

& Elements

Eaton Automatic Control Systems (ACS) are mOdES OF OpERaTIOn cOmpOnEnTS

specifically designed to monitor and operate the The automatic intermit- Motors An electric motor and
tent mode is adjustable by gear box are furnished as part
backwash cleaning system of Eaton Automatic setting the timer in the panel of the strainer. The standard
that controls the frequency of TEFC motor is 120V/220V,
Strainers. Simple to operate, reliable, and easily backwashing and the “open” Single phase 60 Hz, or
maintained. The design allows field adjustments time of the backwash valve. 230V/460V Three Phase 60 Hz,
at customer option. Other
Field adjustments should be
to suit the demands of the service conditions, made to suit the application. motors are available.
A differential pressure switch
ensuring effective cleaning with a minimum use to initiate backwashing under Differential Pressure
high load conditions also can Switch A diaphragm-type
of backwash fluid. be adjusted. differential pressure switch is a
standard component in all
The continuous Control Systems. It compen-
STandaRd cOnTROL SySTEm FEaTuRES backwashing mode is sates for sudden high pressure
recommended where the loading by overriding the time
ACS-1 This system features ACS-2 This system has all backwashing fluid can be cycle and initiating back-
a NEMA 4 rated (water and of the features of the ACS-1 recycled to its source or washing. The differential
dust tight) panel box complete and includes a motor starter in when very high solid loadings pressure setting as well as a
with adjustable timer, differen- addition to the other standard are encountered. delay time setting can be
tial pressure override, 10 amp equipment. adjusted. Two psid above the
control relay for backwash In both the automatic intermit- clean reading is the differential
valve activation, display lights ACS-3 This system has tent and continuous back- setting recommended. A
to indicate Power On, all of the features of the washing modes the backwash delay timer will continue the
Backwash Valve Open, and ASC-2 system and includes arm continuously rotates at a cleaning to customer’s
High Differential Pressure. A a 460V/120V step down low 2-4 RPM. requirement. The time delay
selector switch is also transformer. can be adjusted from 0.6
included to manually control seconds to 24 hours,
the backwash valve functions Optional designs to meet depending on system’s needs.
of Off-On-Auto. The panel also specific requirements with
has contact terminals for a special wiring arrangements, Backwash Valve Electrically
motor starter and an external panel boxes (NEMA 7, 9), actuated (115 VAC/60 Hz) ball
alarm connection. The panel control valves, and air actua- valves are also standard in the
requires 110 VAC input, UL tion among others, can be Control Systems. Materials of
approval is available as an furnished. construction are suitable for
option. The panel has a differ- water service. Other materials,
ential pressure switch and an valve types and pneumatic
electrically actuated ball valve actuation are optional.
that controls the backwash
function. backwash valve Sizes
Strainer Size Valve Size
2”, 3”, 4” 1”
1
6”, 8” 1 ⁄ 2 ”
10”, 12”, 14”, 16” 2”
18”, 20”, 24”, 30” 3”
36” 6”
48”, 60” 8”