quality water treatment products (CARETREAT 4 CONDENSATE)

An organic oxygen scavenger and corrosion inhibitor for feed, steam and condensate systems
* One of the five Marine Care Water Treatment Program Products.
* Environmentally safe, non-toxic product.
* Unique single product for control of corrosion throughout the condensate system.
* Simple, accurate testing.
* Effective under all operating conditions.
* Protects boiler surfaces by forming an iron tannate film.
Introduction
Caretreat 4 Condensate is an oxygen scavenger based on neutralized organic acids and a blend of
volatile/neutralizing amines. It is normally used only in conjunction with Caretreat 3 Boiler as part of
the water treatment program. It removes oxygen efficiently in open feed systems and gives effective
corrosion inhibition of boiler/exhaust gas economizer system surfaces by converting Fe203 (rust) to an
organic iron compound. It also protects copper based metals. The amines pass over with the steam and
have the dual function of elevating the pH of the steam/condensate and putting a protective micro film
on the system pipe work. Acidic condensate is the result of carbonic acid (H2C03) being formed as CO2
is released in the steam. The use of Caretreat 4 Condensate prevents corrosion by carbonic acid on live
systems. Its filming properties also reduce corrosion on shut down lines, when moisture and oxygen are
present.
Directions for use
Caretreat 4 Condensate is dosed at a rate which maintains a pH of 9.0 to 10.0 in the condensate returns.
Oxygen entrainment largely depends on Hotwell temperatures and if these are maintained at above 80o
C the condensate pH range of pH 9.0 to 9.5 is adequate. If Hotwell temperature control is erratic and
averages less than 80o C, tighter control is necessary and condensate returns should be kept in the range
pH 9.5 to 10.0. It is not necessary to carry out oxygen or product residual tests.
Initial dosage
Caretreat 4 Condensate is initially dosed at 0,2 ltr/m3 boiler water. Systems showing signs of corrosion
should be dosed at up to .07 ltr/m3 boiler water for the first few days in order to passivate all metal
surfaces.

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