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2. Chlorine Pressure Chamber Cleaning and Inspection
This step should be conducted if superheat values have fallen compared to initial installation, if signs
of corrosion exist, or after 5 years minimum. Depending on experience at each installation based
on chemical quality etc., the frequency of pressure chamber cleaning should be based the amount of
chemical that has passed through the pressure chamber. For example, you might need to perform this
cleaning after 250 tons of chlorine have passed through.
a. Complete Section IV.1.1 chlorine pressure chamber cleaning (perform steps a through h only).
b. Weigh the inner chlorine chamber assembly (less the process instrumentation, water tank bolts,
anodes and fi ttings, and inlet/outlet pipe.) and record the weight.
c. If the weight of the inner pressure chamber is 10 or more pounds lower than the original weight,
or corrosion pits exceed
1
⁄
8
" (0.3 cm) depth anywhere on the chamber, it must be replaced. This
weight includes the top fl ange, fl ange bolts, and lead gasket. Original weight is stamped on the
pressure chamber and also stored with Hydro Instruments for future reference.
d. Complete Section IV.1 steps i through n.
Summary of Contents for VPH-10000-1 Series
Page 1: ...1 Series VPH 10000 1 Vaporizer Instruction and Operation Manual VPH 10000 1 Rev 9 11 19 ...
Page 13: ...13 FIGURE 4A Relay Connections Box ...
Page 14: ...14 FIGURE 4B Signal Connections Box ...
Page 34: ...34 FIGURE 9 Chlorine Vapor Pressure Curve Vapor Pressure ...
Page 35: ...35 FIGURE 10 Sulfur Dioxide Vapor Pressure Curve Vapor Pressure Min Superheat ...
Page 36: ...36 FIGURE 11 Ammonia Vapor Pressure Curve Vapor Pressure Min Superheat ...
