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571356 ROCOR NB LIQUID/unitor/nalfleet冷卻水處理劑

Rocor NB Liquid 為一種液態(tài)、硝酸鹽及硼酸鹽為基礎的有機性防腐抑制劑,用于封閉式冷卻水系統中。
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產(chǎn)品描述

液態(tài)冷卻水防腐劑           ROCOR  NB  LIQUID

產(chǎn)品屬類(lèi):653            產(chǎn)品編號:571356

產(chǎn)品說(shuō)明:

Rocor NB Liquid 為一種液態(tài)、硝酸鹽及硼酸鹽為基礎的有機性防腐抑制劑,用于封閉式冷卻水系統中。

使用說(shuō)明及添加比例:

Rocor NB Liquid 為一種高效率的防腐抑制劑,用于一般鐵金屬及非鐵金屬的冷卻水系統中。

有些鋁金屬可使用本劑,而有些則不能達到正確的防腐作用

本產(chǎn)品在系統中形成一層穩定性高的防氧薄膜可因抑制電解作用產(chǎn)生的腐蝕鐵銷(xiāo)。

Rocor NB Liquid經(jīng)過(guò)多次的測試后,發(fā)現對冷卻水中非鐵金屬物,如密封圈、親墊、迫緊、管子、墊圈等,絕對無(wú)害。

此劑為堿性,可抑制酸性腐蝕而造成坑洞。如不小心添加此劑過(guò)量,亦可控制其堿性,而使冷卻水的PH值不過(guò)高。保護金屬不受酸堿的腐蝕。

如冷卻水中含有油污及水垢,應在使用此劑前先清除之。WILHELMSEN也有這一方面的清潔劑,如用Seaclean 去油污,而用Descalex 清水垢。

如果船只在寒帶地區拋錨停航,有時(shí)需加入防凍劑。而Rocor NB Liquid應可與防凍劑一起使用。

如冷卻水處理劑含有鍍鋅的成份,應在使用此劑之前,以Descalex或Descaling Liquid清洗之。

添加方式:

Rocor NB Liquid應添加于適當的地點(diǎn)進(jìn)入冷卻水系統中,如加進(jìn)膨脹水柜中,必須確定有良好的循環(huán)。

取樣及化驗:

Wilhelmsen 冷卻水化驗箱309可供應必需的化驗工具。

從冷卻水取得樣水后,立即從事化驗(請依照化驗箱所列明的程序),且記錄結果于Wilhelmsen 提供的化驗簿上,此化驗簿應盡快送到Wilhelmsen的負責地點(diǎn)以便檢閱。

使用下頁(yè)之添加比例表以調整此劑用量而得到適當的控制。每星期至少化驗一次確保此劑的正確控制是很重要的。


優(yōu)點(diǎn)、功能及應用

●本劑為液體,易于使用。

●形成一層防氧薄膜,可抑制因電解作用而產(chǎn)生之腐蝕。

●有效的防止腐蝕。

●適用于管子、墊圈及密封圈。

●適用于各種不同的防凍劑。

●簡(jiǎn)易的化驗方式。

●本劑可適用于各種不同型式的封閉式冷卻水系統中。

—柴油機冷卻水系統

—壓縮機冷卻水系統

—中央控制冷卻水系統

—熱水加熱系統

—其他副機的冷卻水系統

劑量及控制:

未曾使用的冷卻水系統的最初添加量為9公升的Rocor NB Liquid對1000公升的純水??墒固幚碇_到1000ppm的亞硝酸的最低要求。

下列的添加比例表是為方便計算Rocor NB Liquid的使用量,而控制處理劑在一處合適的位置~位于最低(1000ppm的    NO2)與最高(1440ppm的NO2)之間。

正常的亞硝酸范圍:1000~2400ppm的NO2(亞硝酸)

亞硝酸(NO2 ppm )                   0  180  360 540  720900 1080 12601440 -2400

Rocor NB Liquid公升/1000公升的水13.0 11.3 9.7 8.1  6.5 4.9  3.3  1.7     0

當Rocor NB Liquid依上述建議量添加時(shí),因其內含有緩沖劑而維持PH值,在合適的范圍內。正常的PH值應維持在8.3~10之間。

冷卻水的品質(zhì)應依從柴油機制造商的建議??傠s質(zhì)(氯鹽)的含量應保持在低檔,大多數的柴油機制造商推薦的氯鹽含量最高不超過(guò)50ppm。

基于上述因素,Wilhelmsen 建議補給新水時(shí)應用蒸餾水。

Product Group: 653 Product number: 571356
General description
NALFLEET? Rocor NB Liquid? is a liquid, nitrite/borate based
compound with organic corrosion inhibitors for use in closed
cooling water systems.
Features
? Liquid product, easy to use
? By forming an oxide film on the metal surfaces electrolytic
corrosion is prevented
? Effective against cavitation and erosion
? Compatible with hoses, gaskets and seals
Benefits
? Approved by major diesel engine manufacturers
? Simple control test
The product can be used for corrosion inhibition in many types of
closed recirculation systems such as:
? Diesel engine cooling water systems
? Compressor cooling water systems
? Centralised cooling systems
? Hot water heating systems
? Auxiliary machinery cooling systems
Ordering information
Product number Product name
571356 ROCOR NB LIQUID 25 LTR
Accessories
Test Kit for Nitrite, Chloride and pH.
Product Number Product name
739466 SPECTRAPAK 309
Approvals
? Approved by all major engine manufacturers
Home / Marine Chemicals / Water Treatment Chemicals / Cooling Water Treatment / Rocor NB Liquid? 25LTR
? Approved by the Norwegian National Institute of Public Health for the use in systems where cooling water is
used for heating purpose in evaporators
Directions for use
NALFLEET? Rocor NB Liquid is a highly effective corrosion inhibitor for the common ferrous and non-ferrous
metals in cooling water systems. The stable oxide film that is formed prevents corrosion caused by electrolytic action
between dissimilar metals used in the system. NALFLEET? Rocor NB Liquid has been field tested and found to
have no detrimental effects on non metallic substances such as seals, glands, packing, hoses, gaskets etc., normally
used in these systems. The compound is alkaline and so will suppress acid corrosion, which would otherwise result
in corrosion damage such as pitting. However, the alkalinity control is such that even if the product is accidentally
overdosed, the pH of the water will remain within limits. The metals which would be affected by extremes of alkalinity
or acidity are protected. In cases where systems are contaminated with oil and/or scale they should be cleaned
before starting to apply NALFLEET? Rocor NB Liquid. There are suitable WSS products to carry out the cleaning.
Degreasing should be carried out using UNITOR? Seaclean Plus and descaling by using UNITOR? Descalex.
Refer to Water Treatment handbook. The use of antifreeze is sometimes required if the vessel is to be laid up in cold
areas and so NALFLEET? Rocor NB Liquid can be used in conjunction with antifreeze products. If the system
contains zinc galvanized parts, it is advisory to clean the system with Descalex prior to commencing the treatment.
NALFLEET? Rocor NB is not suitable for use in cooling systems containing aluminium components.
Dosing method
NALFLEET? Rocor NB Liquid should be dosed to a suitable point in the system. If the expansion tank is used then
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 9 litres of NALFLEET? Rocor NB Liquid/1000 litres of untreated distilled
water. This will bring the treatment up to the minimum level of 1000 ppm nitrite. The dosage chart given below is for
convenience in calculating the amount of NALFLEET? Rocor NB Liquid required to bring the treatment level to the
suitable point between the minimum and maximum - this being 1440 ppm nitrite.
Normal nitrite limits: 1000-2400 ppm nitrite (NO2)
Nitrite (as PPM NO2) 0 180 360 540 720 900 1080 1260 1440 - 2400
NALFLEET? Rocor NB Liquid/1000 ltr 13,0 11,3 9,7 8,1 6,5 4,9 3,3 1,7 0
N.B.Buffering agents in NALFLEET? Rocor NB Liquid maintain pH values within suitable limits when the product is
dosed as recommended. Normal pH should be maintained between 8.3 and 10 by the treatment. 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.
Documentation
? ROCOR NB LIQUID 25 LTR
Further Technical Data
Form Liquid
Appearance Red
Density 1,1
pH 9
Non Compatible Avoid contact of neat product with zinc and aluminium.

 

關(guān)鍵詞:
unitor
wilhelmsen
nalfleet
rocor
571356
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