7.2 Circulation System The circulation system draws solution from the chamber sump and distributes it to the chamber rotary sprays or active rack It is self-contained within the system’s maintenance space • Circulation system components − One (1) 15" pneumatic two-way diaphragm valve - system drain − One (1) Centrifugal supply pump ◊ 140 gpm at 40 psi ◊ 316Lss wetted materials with EPDM elastomers ◊ Silicon carbide vs silicon carbide internal mechanical seal
◊ 3500 rpm, 10 HP, washdown motor ◊ 05" tri-clamp casing drain connection − One (1) 05" pneumatic two-way diaphragm valve – supply pump casing drain − One (1) Heater outlet temperature transmitter with 0-100 °C range and 4-20 mA output − One (1) Flow switch with discrete output − One (1) Pressure gauge with 0-60 psi range − One (1) 20" x 20" pneumatic diaphragm horizontal sterile access two-valve assembly for distributing solution to either the rotary sprays or the rack's active coupler − Hygienic piping manifold
7.3 Heating System
• One (1) 60" hygienic heater housing assembly • One (1) In-line electric immersion heater − Material: 316Lss (wetted) − Connections: 60" Tri-clamp (process) − Size: 30 kW − Protection: High temperature thermocouple − Duty: See Table 5: Electric Heater Data
Table 5: Electric Heater Data
Electric Heater Sizing
Chamber Model
Approx. Heatup Time 20 °C to 80 °C (min)
kW
SP333 SP443 SP444
30 30 30
15
20 20
NOTE: • Electric immersion heater may have surface finishes that do not meet the listed hygienic piping surface finish Ra value
7.4 Control System 7.4.1 Low Voltage Control Panel • One (1) UL Listed enclosure, NEMA 4X, 304ss construction with painted carbon steel back plate • One (1) Allen-Bradley CompactLogix, 1 MB Memory
− Four (4) 8-point discrete input modules − Two (2) 8-point discrete output modules
− Two (2) 8-point 4-20 mA analog input modules − One (1) 4-point 4-20 mA analog output module • One (1) Ethernet hub • Two (2) Low air pressure alarm switches
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TD-0002.4
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