Name:   Diesel oil purifier
Brand:  Janenope
Model: Boston
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Main Functions: Technical Specification

    1. Filtering more than 90% harmful impurities in diesel fuel
    2. Drawing off more than 95% water in diesel fuel
    3. Reducing vehicle emissions up to 20% to 60%
    4. Diesel fuel consumption reduced by 5% to 10%

    The size of vat: 405*220*380mm
    The size of input and output oil tube: Rc1/2
    Rated flux: 0~50L/min
    Rated pressure:60KPa

Main Advantages: Main Effects

    1. Integrated multi-level filter technology
    2. High filter fitneness and working efficiency
    3. Long replacement cycle for filter core
    4. Low original resistance

    1. Decreasing fuel consumption
    2. Reducing engine failure and strengthening dynamic accordingly
    3. Prolonging engine service life
    4. Reducing maintenance cost for diesel engine and its diesel filter


    Boston diesel oil purifiers can be applied to large diesel generating units or other equipments powered by diesel fuel engine of medium power below 1200HP.

Ⅰ.Product Description:  

    Boston diesel oil purifier series are jointly developed by United States pre-filter Boston Co., Ltd and our tianhou group, which is mainly applied to various fishing boats or other equipment powered by diesel fuel engine of low and medium power below 1000HP. This new invention is used for filtering more than 90% harmful impurities for diesel engine; guarantee providing cleaner diesel fuel for your diesel engine, attain the aims of protecting diesel engine and saving oil. This product is different from the existed diesel filter in our market, which can not be installed directly on the diesel engine body. Boston diesel oil purifiers should be installed on the oil supply tube between the oil tank and diesel filter. In China, the product has been applied to multiple companies running oil field large equipment, truck, fishery harbors diesel engine, ect, and gained surprising achievements and praise from clients.

    As is shown on the above image, we can see the product is made of aluminum alloy, small-size design, compact structure, light weight and easy installation. The unique design enables the "Janenope" diesel fuel pre-filter to have enough capacity to contain the contaminant in addition to the sufficiently prolonged time period for filter core replacement, with several times of purification effect higher than common diesel fuel pre-filters. The multi-level integrated filtration technology adopted ensures the elimination of more than 90% of harmful impurities (including tars, pitches and mechanical impurities) in diesel fuel.

Ⅱ.Product function and installation:  

    providing much cleaner diesel fuel for your diesel fuel, forming double protection for diesel engine, attaining prominent oil-saving effect. The installation position is between oil tank and diesel Filter.

Ⅲ.Product Features:  

    1. The filtration efficiency, filtration precision and contaminant-containing capacity are simultaneously improved by the use of double-level filtration filter core
    2. More than 90% of the colloid, the pitch and the mechanical impurity in diesel fuel can be filtered
    3. A convenient installation is guaranteed by the standard interface

Ⅳ.Replacement of Filter Core:  
    1. Installation of Boston Diesel fuel pre-filter:
    The installation of Boston diesel purifier is very simple,just connect the oil pipeline to the input and output oil tube.
    2. Replace filter core:
    In normal situation, users should replace filter core immediately when the minus pressure alarm apparatus start to alarm or the accumulative operation time has reached 3,000 hours. Two vats in parallel pre-filter couldn't stop when replacing filter core.
    3. The approach to replace filter core:
    a).Turn off the valves of oil inlet and outlet,turn on the blowdown valve for completely discharge of the sump oil.
    b).Unscrew the bolt of top cover and remove the top cover.
    c).Unscrew the fitting nut at the upper end of the filter core,take off the old filter core vertically and upwards.
    d).Place a new filter core,put a seal ring on the upper,then fasten the nut.
    e).Turn off the blowdown valve,put the top cover(do put the seal ring at place),tighten the fitting nut.
    f).Turn on the inlet valve before turning on the exhaust valve,turn off the exhaust valve immediately once comes out of it,and then turn on the outlet valve.


    Unclean diesel fuel can cause abnormal abrasion to the injection system and the cylinders of the engine, which results in a decreased engine power, an increased fuel consumption and a rapid decline of engine life-span. The diesel fuel pre-filter can considerably improve the filtration precision and the eff-iciency of an engine adopting felt fabric filters, thus reaching several times of life-span of the imported high quality diesel fuel filter and a notable fuel saving.

    1. This product had been promoted in the big oilfields in China, such as Daqing, Dagang, Liaohe, Changqing, Xinjiang, Jiangsu, Huabei, Zhongyuan, Sichuan, Nanyang, etc.
    2. A full application had been executed in the coastal fishery harbors in Zhejiang province with substantial support from the local government departments.
    3. Large-scale trial use throughout China.