OBWT-4

OBWT-4

Organic oxygen scavenger and corrosion inhibitor for steam and condensate systems

• Environmentally safe, non-toxic product based on neutralized organic acids

• Forms an effective iron tannate film to assure excellent boiler surface protection

• Specialized amine blend carries over with steam to protect condensate lines

• Elevates condensate pH (9.0 – 10.5) to neutralize carbonic acid and filming the system

• Provides superior protection for both steel and copper-based metals

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DESCRIPTION

OBWT-4 is an advanced, environmentally superior treatment that combines organic oxygen scavengers with volatile neutralizing amines. Unlike traditional scavengers, it not only removes oxygen from the feed-water but also forms a protective organic compound on boiler steel surfaces. Its filming properties are especially effective during shutdown periods, protecting lines where moisture and oxygen are present.

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APPLICATIONS

Used for comprehensive control of corrosion throughout feed-water, steam lines, and condensate systems. It is highly recommended for systems where hotwell temperatures are erratic. By stabilizing the condensate pH, it prevents the corrosive effects of carbonic acid and oxygen entrainment, ensuring long-term system integrity.

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DIRECTION FOR USE – DOSAGE GUIDE

Initial Dose: 0.2 lt/m³ of boiler water (increase to 0.7 lt/m³ for first few days if corrosion is present). Daily Dose: Start at 0.4 lt/day and adjust to maintain condensate pH between 9.0 – 10.5. Method: Must be dosed continuously via a metering pump. Never slug dose via the hotwell. Maintain hotwell temperatures above 75°C for optimal results.

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PRODUCT CHARACTERISTICS

Feature	Details
Appearance	Brown liquid
Specific Gravity	1.1 (20°C)
pH (1% solution)	10.8
Code	161162113
Regulatory	IMO/UN/ADR: Not regulated