Product information

Specification

Approvals

• Approved by all major engine manufacturers

Directions for use

NALFLEET™ Cooltreat AL is a highly effective corrosion inhibitor for all common metals in cooling water systems. Testing has shown no detrimental effects on non metallic substances such as seals, glands, packing, hoses, gaskets etc., normally used in these systems. Where most traditional inhibitors react with the metal surface and form oxides that prevent further corrosion, NALFLEET™ Cooltreat AL applies a thin and durable layer of protective molecules to the metal surfaces. This technology prevents the continuous build-up of insulating layers on heat transfer surfaces. For new builds, Wilhelmsen Ships Service recommends cleaning of the water system before commencing service. The system will always contain small amounts of oil and iron oxides, and this can be removed in one operation with UNITOR™ Commissioning Cleaner. If the system is corroded or is more heavily contaminated, degreasing with i.e. UNITOR™ Seaclean Plus followed by acid cleaning, with i.e. UNITOR™ Descalex for removal of metal oxides or scale is recommended. For systems previously treated with other products, Wilhelmsen Ships Service recommend to drain and flush the system before refilling with distilled water and NALFLEET™ Cooltreat AL. The system should be clean and free from scale and corrosion products when starting the treatment. The use of antifreeze is sometimes required if the vessel is to be laid up in cold areas, NALFLEET™™ Cooltreat AL can be used in conjunction with glycols for frost protection. If used in conjunction with glycols, It is recommended to increase the product concentration to 8%.

For general guidance where aluminium is present:

No aluminium present - Use Engine Water Treatment 9-108 or Rocor NB Liquid

<10% Aluminium - Use NALFLEET 2000 or Cooltreat AL

>10% Aluminium - Use Cooltreat AL

Dosing method

NALFLEET™ Cooltreat AL should be dosed to a suitable point in the system. If the expansion tank is used, adequate circulation must be assured.

Sampling and testing

The Spectrapak Test Kit provides the necessary equipment to carry out the control tests. Obtain a representative sample of the cooling water. Carry out the tests immediately after sampling (following the instructions given in the Test Kit) and log the results in Waterproof. The results should be sent to WSS as stated in the Waterproof instructions. Use the dosage chart overleaf to adjust treatment to obtain the optimum level. It is important that testing is carried out at least once per week, to ensure levels of treatment are correct.

Dosage and Control

Initial dosage for an untreated system is 60 litres of NALFLEET™ Cooltreat AL/ton of untreated distilled water (6%). This will provide sufficient protection of the system for a period of two to five years under normal conditions.

6% NALFLEET™ Cooltreat AL should also be dosed in all make up water added to the system to compensate for lost coolant. The engine manufacturer's recommendations for water quality should always be complied with. Chloride levels should always be as low as possible. Most engine manufacturers recommend a maximum of 50 ppm chlorides. For this reason, Wilhelmsen Ships Service recommends the use of distilled water as make-up. pH should be controlled between 7.0 and 9.0.

产品特性

• 液体产品
，易于使用

• 环保
，完全有机产品，低毒性

• 有效防止气蚀和腐蚀。卓越的传热性能

• 与软管
，垫圈和密封件兼容

• 与二醇兼容
，可保护霜冻

• 稳定的产品- 非消耗

优势

• 该产品可用于多种封闭式再循环系统的腐蚀抑制，例如：

• 柴油发动机冷却水系统

• 压缩机冷却水系统

• 集中冷却系统

• 热水加热系统

• 辅助机械冷却系统

• 主要发动机制造商批准

Product Number                                Product name

680843                                              COOLTREAT AL 25 LTR

Cooltreat AL

，氯化物和pH值测试套件。

Product Number                                Product name

758904                                               TEST KIT FOR COOLTREAT AL...

认证

• 主要发动机制造商批准

使用说明

NALFLEET™Cooltreat AL是一种有机液体缓蚀剂
，可延长使用寿命
，适用于封闭式冷却水系统
。该产品可为发动机冷却水系统中的所有常用材料提供保护，包括铝。与其他冷却剂不同，NALFLEET™Cooltreat AL不含有快速消耗的成分，即亚硝酸盐和硅酸盐
。基于脂肪酸技术
，NALFLEET™Cooltreat AL稳定，因此可以降低测试频率
。NALFLEET ™Cooltreat AL

是完全有机的和可生物降解。

使用说明NALFLEET™Cooltreat AL是一种高效缓蚀剂，适用于冷却水系统中的所有常见金属
。测试表明，对这些系统中通常使用的非金属物质（如密封件，密封管，填料，软管
，垫圈等）没有任何不利影响。大多数传统抑制剂与金属表面发生反应并形成防止进一步腐蚀的氧化物，NALFLEET™Cooltreat AL在金属表面涂上薄而耐用的保护分子层。该技术可防止传热表面上的绝缘层连续堆积
。

对于新建筑
，Wilhelmsen Ships Service建议在进行维修之前清洁水系统。该系统将始终含有少量的油和氧化铁
，UNITOR™ Commissioning Cleaner.如果系统被腐蚀或受到更严重的污染，建议使用UNITOR™Seaclean Plus进行脱脂，然后进行酸洗，即使用UNITOR™Descalex去除金属氧化物或水垢。对于之前使用其他产品处理过的系统
，Wilhelmsen Ships Service建议在重新注入蒸馏水和NALFLEET™Cooltreat AL之前排空和冲洗系统。

在开始处理时，该系统应该是清洁的并且没有水垢和腐蚀产物。有时需要使用防冻剂如果要将容器放在寒冷的地方，NALFLEET™的Cooltreat AL可以与乙二醇一起用于防冻。如果用于与二醇结合使用，建议将产品浓度提高到8％
。*%.*

加药方法

NALFLEET™Cooltreat AL应配制到系统中合适的位置
。如果使用膨胀水箱

，必须确保充分的循环
。

采样和测试

Spectrapak测试套件提供了执行控制测试所需的设备
。获得冷却水的代表性样品。取样后立即进行测试（按照测试工具包中的说明）并将结果记录在防水中
。结果应按照防水说明中的说明发送至WSS
。使用背面的剂量图来调整治疗以获得最佳水平
。重要的是每周至少进行一次测试，以确保投药水平正确

剂量和控制

未处理系统的初始剂量是60升NALFLEET TM Cooltreat AL /吨未处理的蒸馏水（6％）。这将在正常条件下为系统提供足够的保护
，为期2至5年
。

还应在添加到系统中的所有补充水中加入6％NALFLEET™Cooltreat AL，以补偿损失的冷却剂
。应始终遵守发动机制造商对水质的建议。氯化物含量应始终尽可能低
。

大多数发动机制造商建议最多使用50 ppm氯化物。因此，Wilhelmsen Ships Service建议使用蒸馏水作为化妆品
。pH值应控制在7.0至9.0之间
。