10.3 Final Rinse Type The Single Pass Final Rinse option adds a final rinse tank and associated controls and piping to the system to allow for a final rinse phase that is not recirculated within the washer chamber • Rinse tank: − Working Volume, Dimensions and Access: See Table 6: Rinse Tank Data
Table 6: Rinse Tank Data
Rinse Tank
Chamber Model
Volume (gal)
Tank Ø (in)
Tank Sidewall (in)
Access
Split tank body (12" tri-clamp)
SP333
20
12
41
SP443 SP444
40 50
18 18
38 46
6" tri-clamp hand hole 6" tri-clamp hand hole
− Tank Heads: Flanged and dished − Thickness: 12 ga − Insulation: 05" thick closed cell foam insulation (sidewall only) − Design: Atmospheric
− Material: 316Lss wetted surfaces / 304ss non-wetted surfaces − Interior Finish: 20 µin Ra with welds ground and polished − Exterior Finish: 32 µin Ra with welds color cleaned • Rinse tank components: − One (1) Hygienic spray assembly with directionally drilled static spray ball and supply tube − One (1) Vent filter assembly consisting of an in-line housing with 02 micron hydrophobic filter element and two (2) hygienic check valves − One (1) Rupture disk with +15 psi/full vacuum rating, burst alert sensor, and downtube piping − Two (2) Level switches (tuning fork) • Additional circulation system components: − One (1) 20" pneumatic two-way diaphragm valve for rinse tank block to pump suction − The standard two-way piping drain valve is replaced with one (1) 20" x 15" pneumatic diaphragm horizontal sterile access two-valve assembly for distributing chamber solution to either the pump suction (recirculation phase) or to drain (final rinse phase) 10.4 Dryer System The addition of any dryer system option allows for heated drying and cooling phases to be included in the cleaning cycle These phases reduce the amount of final rinse water on the process parts and rack within the chamber prior to unloading Air is pulled from the surrounding area of the maintenance space where the supply fan is installed and is discharged from the washer chamber at the exhaust flange connection The following components and controls are added to the system when selecting a dryer system: • Dryer Supply System − One (1) Pre-filter, paper, 999% filtration to 10 micron − One (1) Centrifugal fan ◊ 400 cfm at 6" wc ◊ Direct Drive ◊ 1 HP washdown duty motor ◊ 304ss construction − One (1) In-line electric heater ◊ 24 kW
◊ 460V AC, 3PH, 60 Hz ◊ 304ss construction ◊ High temperature cutout thermocouple − One (1) HEPA filter, 9999% filtration to 03 micron − Supply ducting downstream of HEPA filter constructed of 316Lss − One (1) Differential pressure transmitter with 0-5" wc range and 4-20 mA output
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