Biocides
This concentration of glutaraldehyde is needed for an "effective kill."
What is 41 PPM?
This is the recommended pH range for aluminum components.
What is 7-8?
The assumed evaporation rate for water in a cooling tower is this percentage.
What is 1%?
Evaporative condensers have this rule of thumb skin temperature.
What is 90° F?
One boiler horsepower equals this many pounds of steam per hour.
What is 34.5 lbs/hr?
The target concentration for a 100% glutaraldehyde product is this many PPM.
Below this absolute minimum recommended pH, water becomes aggressive to mild steel.
What is 8.0?
To estimate cooling tower system volume from maximum GPM, multiply by this number.
What is 3.5?
Plate exchangers have this rule of thumb skin temperature.
What is 90° F?
Deaerators effectively remove dissolved gases at approximately this temperature and pressure.
What are 215° F and 3-5 psi?
Stabilized bromine begins to overstabilize when bromine reaches this level.
What is 50 PPM?
Above this absolute maximum recommended pH, water begins leaching zinc from brass.
What is 10.3?
To estimate cooling tower system volume from maximum tonnage, multiply by this number.
What is 4.0?
A centrifugal chiller has this rule of thumb skin temperature.
What is 120° F?
It takes this many PPM of sulfite to scavenge 1 PPM of dissolved oxygen.
What is 10 PPM?
At this bromide level, stabilized bromine is considered fully overstabilized.
What is 70 PPM?
Bicarbonate and carbonate alkalinity spontaneously convert to CO2 at this pH.
What is 4.3?
At or below this LSI, a system is considered to be in corrosive conditions.
What is 1.7?
An absorption chiller has this rule of thumb skin temperature.
What is 135° F?
It takes this many PPM of erythorbate to scavenge 1 PPM of dissolved oxygen.
What is 13.5 PPM?
Bromide and sulfamate are used in this ratio.
What is 1:1?
Up to 500 PPM of OH alkalinity forms at this pH.
What is 12.0?
Assuming a 10X demand, gallons of CDG3000 needed are calculated using this formula.
What is system volume ÷ 300?
This equipment has a rule of thumb skin temperature of 280° F.
What are 3 stage compressors?
Producing 100,000 lbs/hr of steam in an electric boiler requires approximately this much electricity.
What is 40 megawatts?