Clayton Feedwater Treatment Manual

1. Nipple 2. Valve 3. Tee

4. Bushing 5. Strainer 6. Bushing

7. Nipple 8. Valve 9. Plug

Fig. 4-1 Typical continuous blowdown kit hookup

Table 4-1: Continuous Blowdown Adjustment

Model

E-33 E-60 E-100 E-154 E-204 E-254 E-304 E-354 E-404 E-504 E-604 E-704

Rate (gph) (High Fire)

1.5 2.8 4.5

7.0

9.0 11.0 13.5 15.8 18.0 20.0 24.0 n/a

(The maximum adjustable rate is approximately 30 gallons per hour) Flow must be increased proportionately for feedwater having higher concentrations. To adjust flow, simply open the valve a little to increase the flow. Make adjustments of approximately 1/4 turn at a time and check flow results. For highly variable load conditions (large difference between maximum and minimum loads) the oxygen scavenger (sulfite) concentration should also be observed after the longest period of high make- up. If the sulfite concentration becomes too low, then the chemical dosage rate may have to be increased to suit. Therefore, a balance must be reached between the blowdown rate to control TDS and chemical dosage to control sulfite.

4-2

OperatingInstr_b.fm

04/12/2013