Features:

DG-12 is recommended for descaling boilers, evaporators, condensers, heaters and coolers. It may also be app- lied for scale removal from steam pipes and air conditioners.

Benefits:

Fast and effective scale and rust remover. Contains descaling accelerators that reduce the cleaning time. With inhibitors against corrosive attack. Contains pH sensitive indicator. Powder product - safe handling and storage. Safe to use on all metals.

Usage:

Descaling can be accomplished by circulation, for large components and systems, by in-situ soaking, or by soaking in an immersion bath for small components. The most effective method is by circulation as it ensures renewal of acid film in contact with the scale. If the deposits to be removed are covered with oil or grease, a deg- reasing treatment with a solution of 2% to 8% DG-01 – Solvent Based Oil And Grease Remover with water should be carried out prior to descaling. Circulate the solution for 4 to 6 hours. To accelerate the cleaning process the solution should be heated up to a temperature of 60°C.

A. Recirculation Method Heatexchangers, Evaporators, Condensers

Heat a 5-10% solution of DG-12 in water for best results (up to 50oC). Recirculate the solution through the heat exchanger by means of a pump for at least 6-10 hours and maintain solution temperature is possible. Periodical- ly test solution acid strength and add DG-12 as required. Rinse off by connecting the heat exchanger to a supply of fresh water The last step involves circulation of a 1-2% solution of BT-02 – Alkalinity Control for a minimum time of 3 hours or until a neutral pH is obtained.

B. Cooling Water Systems

Follow same procedure as above. A sufficient quantity of chemical will be required to maintain acid strength throughout the cleaning operation. Place scale samples in easily observed positions to monitor the progress.

C. Boiler Scale Remover

Prepare a DG-12 solution in a mixing tank (no more than 60-70oC) and either arrange gravity feed of the solution directly into the boiler or connect the mixing tank to the circulation line between the water blow down flange and the pump. Use auxiliary feed line to feed the solution into the boiler so it flows via the economizer to the steam drum and then to the water drum, through the boiler tubes and subsequently out of the blow down connection. Secure all connections, half fill the boiler with fresh water and slowly add the product to obtain a solution of 5-10% and then start the circulation pump. Maintain the circulation for 8-16 hours, making sure that the acid strength of the solution remains stable by checking periodically and adding product as required. Let the steam run into the solution to maintain a temperature of 60oC. Periodically test the solution strength. If it quickly neu- tralizes even after DG-12 addition, drain off and re-start with a fresh solution. Rinse thoroughly the boiler with fresh water and circulate a 1-2% solution of BT-02 – Alkalinity Control for at least 3 hours or until a neutral pH is obtained.

D. Soaking Method

This method will produce acceptable cleaning results where recirculation, especially on heat exchangers, cannot be arranged. Disconnect exchanger from circuit and drain. Use one of inlet/outlet connections or cleaning plugs to provide a steam feeding pipe into the exchanger. Leave uppermost connection/plug open for ventilation. Fill the exchanger with warm solution of DG-12 in fresh water. Check the acid solution strength. Allow the product to act and periodically apply steam to maintain temperature. Thoroughly flush with fresh water and as a final step use a solution of 1-2% of BT-02 – Alkalinity Control to neutralize the remaining acids.

Further Technical Data:

For detailed information on safety and health, please refer to Material Safety Data Sheet and / or Product label.marinechemicals,marinechemicals,marine chemicals istanbul,marine chemicals,marine chemicals,marine chemicals istanbul,deniz kimyasalları, marine chemicals istanbul,marine chemicals, tank cleaners, acc, aircooler cleaner, marine chemicals istanbul, marine chemicals turkey, deniz kimyasalları, gemi kimyasalları,marine chemicals istanbul,tank temizleyiciler,karbon temizleyiciler,marine chemicals,yağ sökücüler,cooling water test kit,boiler water test kit, watertreatment, rust remover,pas sökücü, fueloil treatment,marinechemical, marine chemicals istanbul,marine chemicals istanbul marine chemicals istanbul, marine chemicals bosphoru,marine chemicals istanbul,gas side treatment,fire side treatment,degreasers,general cleaners,solvent,marine chemicals istanbul,bilge cleaner,heavy duty degreaser,multipurpose detergent,solvent-based,electro cleaner,tank cleaners,tank cleaners,cargo hold cleaner,methanol,marinechemicals,marine chemicals, tank cleaners, acc, aircooler cleaner, marine chemicals istanbul, marine chemicals turkey, deniz kimyasalları, gemi kimyasalları,marine chemicals istanbul,tank temizleyiciler,karbon temizleyiciler,carbon remover,yağ sökücüler,cooling water test kit,boiler water test kit, watertreatment, rust remover,pas sökücü, fueloil treatment,marine chemicals istanbul, potable water treatment,sewage treatment,cooling water treatment, marine chemicals bosphorus,marine chemicals istanbul,marine chemicals istanbul,marine chemicals,marinechemicals,degreasers,general cleaners,solvent,marine chemicals istanbul,bilge cleaner,heavy duty degreaser,multipurpose detergent,solvent-based,electro cleaner,tank cleaners,tank cleaners,cargo hold cleaner,methanol,marinechemicals,marine chemicals, tank cleaners, acc, aircooler cleaner, marine chemicals istanbul, marine chemicals turkey, deniz kimyasalları, gemi kimyasalları,su kimyasalları,tank temizleyiciler,karbon temizleyiciler,carbon remover,yağ sökücüler,cooling water test kit,boiler water test kit, watertreatment, rust remover,pas sökücü, fueloil treatment,yakıt katkı kimyasalları, potable water treatment,sewage treatment,cooling water treatment, marine chemicals bosphoru,marine chemicals istanbul,gas side treatment,fire side treatment,degreasers,general cleaners,solvent,marine chemicals istanbul,bilge cleaner,multipurpose detergent,marine chemicals istanbul,marine chemicals istanbul,methanol,marinechemicals istanbul,marine chemicals