Company Profile

  • Trading NAME
  • TAS Corpration Ltd.
  • Office Location
  • 1-3-10-8F Hiranuma, West-district, Yokohama-city, Kanagawa, JAPAN
  • TEL
  • (+81) 45-317-5900
  • FAX
  • (+81) 45-317-5911
  • Establishment
  • 7th OCT 1996
  • Captal
  • 3 Million yen
  • Executives
  • Representative : Hiroyuki Nagata
    Oversea Dept. Manager : Takanari Nagata
  • Number of Employees
  • 7
  • Bank Accounts
  • SUMITOMO MITSUI BANKING CORPORATION
    Yokohama Branch, Ofuna Branch
    [Summary of our service and products]
    TAS Corporation is a Japanese company specialized in condensate removal for steam system.
    We provide advanced orifice steam trap “ECOTRAP” which reduce steam loss result improving energy efficiency, heat transfer and reducing emissions of greenhouse gases, and eliminates repair or replacement.
    With our original orifice steam trap “ECOTRAP”, fuel consumption is typically reduced 10 to 25% for trapped steam.
    ECOTRAP is an advanced version of the orifice trap developed by Mr.Nagata of TAS Corporation which is only the orifice steam trap that achieve the full orifice advantages without having disadvantages that orifice traps may have.

    Model Selection

    An orifice steam trap is a relatively simple condensate removal device that only has a narrow hole designed to flow through steam condensate.

    Therefore, selecting an appropriate model for your steam system is a very important in the process of minimizing your steam loss.

    The result of our performance test shows that condensate effectively block live steam escaping from your steam system as far as condensate amount in the system is kept 30% or above of orifice output capacity. It means that suitable the model for your system is the one that would not underrun 30% of the orifice output capacity and capable of maintaining sufficient level of water under fluctuation of your steam system environment at all time.

    The accurate amount of condensate in your steam system under vary condition is unknown for most of you. However, There is the way. We have the calculation formula from which we can tell you the exact amount of condensate in your system, if you could provide us the necessary data such as pressure before and after the trap and etc.

    To collect all the necessary information to select the best suitable model for your system, we have the data sheets for you to fill out. The data sheets are designed to contain all the information we need, when you filled this page in either EXCEL or PDF format.

    From that data, we know which model would suit for your system and e-mail it to us, then we know which model would suit for your steam system. Please feel free to contact us on “Inquiry Page” if you have any question.


    Examples of Steam Conservation

    The following details are the data of before and after installation of ECOTRAP we have reported from our clients.
    EX-1 [ Petrochemical Plant ]
    Equipment:Cooling Unit (1 Steam Trap replaced)
    Steam Pressure:0.28Mpa
    Before After Result
    Steam Consumption
    (ton / hour)
    3.87 3.5 0.37
    (9.6%)
    Fuel Consumption
    (ton / year)
    2,580 2,330 250
    CO2 Emission
    (ton / year)
    5,160 4,660 500
    Cost saved
    @2,000yen / ton
    5,920 Million yen / year
    Total cost of installation
    (Trap+Piping renovation fee)
    aprx 0.5 million yen
    Return % of the installation cost
    by energy saving
    aprx 1200%
    Payout Time aprx 1 Month
    *Steam Consumption was checked by a steam flow meter.
    *Reference download 1


    EX-2 [ Petrochemical Plant ]
    Equipment : Cooling Unit (1 Steam Trap replaced)
    Steam Pressure : 2.7MPa
    Before After Result
    Steam Consumption
    (ton / hour)
    1.0 0.7 0.3
    (30%)
    Fuel Consumption
    (ton / year)
    660 467 200
    CO2 Emission
    (ton / year)
    1,334 934 400
    Cost saved
    @4,000yen / ton
    9,600 Million yen / year
    Total cost of installation
    (Trap+Piping renovation fee)
    aprx 400 million yen
    Return % of the installation cost
    by energy saving
    aprx 2400%
    Payout Time aprx 0.5 Month
    *Steam Consumption was checked by a steam flow meter.
    *Reference download 2


    EX-3 [ Electrical Power Station ]
    Equipment : Air Dryer (13 Steam Traps replaced)
    Steam Pressure : 0.52MPa
    Before After Result
    Steam Consumption
    (ton / hour)
    0.4 0.3 0.1
    (30%)
    Fuel Consumption
    (ton / year)
    270 200 70
    CO2 Emission
    (ton / year)
    540 400 140
    Cost saved
    @2,000yen / ton
    1,600 Million yen / year
    Total cost of installation
    (Trap+Piping renovation fee)
    aprx 1,000 million yen
    Return % of the installation cost
    by energy saving
    aprx 160%
    Payout Time aprx 7 Month
    *Steam Consumption was checked by a steam flow meter.


    EX-4 [ Chemical Firm ]
    Equipment : Air Dryer (1 steam trap replaced)
    Steam Pressure : 0.7MPa
    Reference download 3 (Japanese only)


    History of the Oriffice Trap



  • The History of steam trap began with the Watt’s invention of Steam Engine.


  • Orifice steam trap was a most popular style at the early stage of steam trap history. However, the orifice traps at early stage were mostly very leaky one due to lack of knowledge and techniques. Generally, other types of steam traps were developed in order to improve the problems that early orifice traps had.

    All steam traps work according with different density between condensate and steam, but all traps other than orifice trap involves some intermittent action that hold condensate at least for a moment and then discharge. This action causes the traps to wear and this damage will cause efficiency degradation of the trap and mechanical failure at the end. You can extend the life expectancy of mechanical traps by reducing the frequency of this intermittent action, however the trap with lower intermittent action is usually higher at cost. Therefore, replacing with higher reliability but expensive steam trap may not be the best solution because it cost a lot, once it breaks down.



  • Great success in the U.S. Navy.


  • In 1970’s U.S. Navy investigated on improvement of energy efficiency and weight saving in order to extend the cruising distance of the battleship. One of the most important technologies they have investigated was a steam-trapping as it considered as one of the biggest loss of energy within the battleship.

    Orifice trap was the one they have most focused because it is considered as the most beneficial steam trap in terms of improving energy efficiency as well as weight saving within the limited space in the battleship. After 8 years of testing, it was reasoned and determined by the US Navy, the fixed orifice produced the least steam loss over all other conventional steam traps tested, if it designed appropriately.

    This orifice steam trap system is used to over 100 battleships, and as a result of this, 875 thousand barrels of fuel and half million dollars of maintenance fee, in total of 10.8 million dollars were saved.

    U.S. President Carter awarded the engineer Mr. Lawrence L. Guzick for this great achievement in May 1977. He is also awarded from US department of energy, the John C. Valor award in 1976.



  • Development of unique orifice technology in Japan.


  • In 1980, few Japanese companies started importing of orifice traps. Some of Japanese companies investigated on this technology and started manufacturing the advanced version of orifice traps, however the technology was not able to be in widespread use as it was far from common understanding of the people at that time.

    However, after the Kyoto protocol and new energy efficiency law in force, it’s energy efficiency is begun to recognize. NEDO (New Energy and Industrial Technology Department Organization) is the body who assess the every saving investment and distribute the subvention, clearly states that replacing the mechanical traps with orifice trap is an energy saving investment and subsidize 30% of it’s total investment.



  • Orifice trap in future.


  • Energy efficiency and cost down continue to be the important issue for the future in terms of global warming. From this point of view, the most efficient steam trap, orifice trap will be considered to be as the mainstream of the steam trap tomorrow.

    FAQ

  • How long is the life expectancy?
  • I wonder if the orifice size enlargement can happen?
  • I wonder if the orifice blockage or plugging problem may happen?
  • Is it capable enough for highly loaded condition?
  • I wonder if any steam loss can happen under extremely small loaded condition?
  • It looks steam leaking from orifice? What is it?
  • Is there any way we can stop flash steam?
  • Steam loss is not a big problem for us as we have condensate re-circulate system?
  • Can I use ECOTRAP in low differential pressure environment?
  • How does the condensate removal system perform at start up?
  • Do you have high pressure compatible ECOTRAPS?
  • Noise can be too loud?
  • Is there any way we can measure and compare the steam loss between conventional traps and ECOTRAP?


  • Q-1 How long is the life expectancy?
    A-1 ECOTRAP is a stainless made simple device with no moving parts. The life expectancy is therefore semi-permanent.


    Q-2 I wonder if the orifice size enlargement can happen?
    A-2 Live steam is several hundred times lighter and tries to pass through the orifice 40 times faster than condensate. Therefore, it could cause the orifice enlargement or erosion in case if only live steam to flow through. On the other hand, ECOTRAP is basically designed only condensate to flow through and therefore orifice enlargement or erosion can rarely happen.


    Q-3 I wonder if the orifice blockage or plugging problem may happen?
    A-3 Reducing the risk of orifice blockage problem is what ECOTRAP is basically designed for. Our original interrupter technology and multi-orifice structure enabled ECOTRAP has relatively larger orifice and this minimize the risk of dirt blocking the orifice.


    Q-4 Is it capable enough for highly loaded condition?
    A-4 You may think that orifice trap is less capable for highly loaded condition as it only has less than 1.5 times of discharge ability for maximal load. But this is not true; ECOTRAP has enough capability as more than few times of condensate will not be generated under normal load fluctuation. Mechanical traps require more than few times of discharge ability for maximal load because of its’ intermittent nature, not because of load fluctuation.


    Q-5 I wonder if any steam loss can happen under extremely small loaded condition?
    A-5 Steam loss may happen via orifice under extremely small loaded condition. The loss is around 5% of orifice output capacity, if you have no condensate at all in you system, but the result would vary depends on how much steam pressure you have in your steam system. The steam loss will be dramatically dropped if you have at least some amount of condensate in your system. The amount of steam loss is about the same level of mechanical traps, if you maintain the condensate that is over 25% of orifice output capacity. If you have the equipment such as heat exchanger and dryer with control valve, control valve will close when the pressure drops and the output capacity of ECOTRAP will also be reduced as pressure drops. Therefore, steam loss won’t happen until very small loaded condition.


    Q-6 It looks steam leaking from orifice? What is it?
    A-6 The calorie difference of the condensate between high and low pressure will be evaporated when condensate comes out from high-pressure area to low-pressure area. This is what we normally call flash steam. The amount of condensate becoming flash steam is increased when differential pressure is higher, but that is not steam loss.
    Mechanical traps have no flash steam when it completely closed, while ECOTRAP has continuous flow and therefore has flash steam.


    Q-7 Is there any way we can stop flash steam?
    A-7 Flash steam is a physical phenomenon you can’t completely stop. However, there is a way you can diminish the appearance of flash steam.
    To do that, you will need an extra piping from ECOTRAP output, and put that into drainage conduit, then flash steam will be absorbed into Water. You will also need to make a pinhole onto the piping between ECOTRAP and drainage conduit in order to prevent backward flow when steam system completely stopped at regular maintenance.


    Q-8 Steam loss is not a big problem for us as we have condensate re-circulate system?
    A-8 That is misconception for the following reasons.
  • Dropping high pressure steam in to low pressure steam means high calorific value turn into low calorific value, and it also lead a temperature raise in re-circulate pipes as well as heat loss during re-circulation.
  • The back pressure from high pressure steam trap may lead a deficient capacity or defects in low pressure steam traps and that will also affect system as a whole.
  • Live steam flow through orifice into re-circulate piping sometime became a cause of water hammer, that may damage equipments in your steam system.


  • Q-9 Can I use ECOTRAP in low differential pressure environment?
    A-9 Yes, you can.
    ECOTRAP can be used as far as there is at least some differential pressure. This feature enabled ECOTRAP capable of collecting condensate from high-pressure system and that also means no pumping equipment required in the condensate re-circulate piping. That will help you save a lot of money. ECOTRAP is the best solution for those who have low differential pressure.


    Q-10 How does the condensate removal system perform at start up?
    A-10 With properly-sized orifices, the ECOTRAP’s condensate removal system works better for plants during shutdown and startup. ECOTRAP continue working as far as there is differential pressure remained in the system even after the shutdown, therefore there will be no much condensate kept in the system when you startup. However, this may not be the case for some systems with large orifice or long flue, and that system may require by-path condensate removal as it normally done in the system with conventional traps.


    Q-11 Do you have high pressure compatible ECOTRAPS?
    A-11 Yes we do. T and F model are high-pressure compatible model.
    We can also modify the ECOTRAP compatible with JPI, 2500LB, RTJ. Our high-pressure compatible model is even more price competitive than that of other companies.


    Q-12 Noise can be too loud?
    A-12 No.
    It has some noise as it flows continuously but that is not like intermittent noise. The noise will be almost diminished if you have extra few meters of pipe on the trap. Noise is even smaller for the model with interrupter.


    Q-13 Is there any way we can measure and compare the steam loss between conventional traps and ECOTRAP?
    A-13 If your steam system is completely piped and condensate is not discharged into the air, checking with flow meter and see the difference between 2 traps is only the way. If you do not have flow-meter on individual discharge channel, we will recommend you to change all discharge channels with ECOTRAP and see the difference.
    If you have system with traps that discharge condensate into air, you can find out the amount of steam loss by measuring the amount of condensate. We have the instruction and the calculation formula; please contact us for more information.

    What is ECOTRAP?

    ECOTRAP is only the orifice steam trap that achieve the full orifice advantages without having the orifice disadvantages.

    There are so many reasons to replace your mechanical steam traps with “ECOTRAP”.

  • No steam loss.
  • No Moving Parts that can wear and fail.
  • Never fail open.
  • No regular mentainance required.(Easy to maintain)
  • Minimize the running cost and CO2 emission.
  • Low initial cost.
  • No water hammer and thermal shock.
  • Stabilized process temperature.
  • Resistant to freeze damage.
    You can completely eliminate the steam loss when proper type of ECOTRAP is selected. With ECOTRAP, you can save steam, enegy, maintenance fee as well as CO2 emission. The benefits for you to replace your mechanical steam trap with ECOTRAP are its’ energy efficiency, cost effectiveness, and also environmentally-friendliness.

    ECOTRAP is only the orifice trap in the world that significantly reduced the risk of plugging or blockage problem with some unique technologies. And it’s still compatible with high flow, low flow and high pressure use.
    Models Usage Connection
    Size
    Connection Type Standard
    S General,Steam mains 1/2B – 1B Screw PT
    M General,Steam mains 1/2B(Male/Female) Screw PT
    SS Steam mains
    - Mid to High Pressure
    1/2B Screw PT
    H Steam mains
    - High Pressure
    1/2B – 1B Flange JIS,JPI,ANSI
    FL Process equipment
    - with Straight Piping
    3/4B – 3B Flange JIS,JPI,ANSI
    C Process equipment
    - with Uneven Piping
    3/4B – 2B Flange JIS,JPI,ANSI
    Select Process equipment
    - Wide Load Range
    3/4B, 1B Screw PT
  • Each model has levels of capacity suitable in different conditions.
  • RTJ(Ring type Joint) flange connection size is available up on request.
  • #Technologies#
  • ECOTRAP has no moving parts that can wear and fail.
  • The multi-orifice structure enable ECOTRAP to have a larger sized orifice.
  • “Interrupter Technology” A Patent application in progress.
  • Orifice is exchangeable so you can easily change the orifice when needed.
  • # What is “Interrupter Technology”? #

    “Interrupter” is the device which can absorb or ease the speed of both steam and condensate comes out from the orifice. This technology has enabled the trap to have large sized orifice. Therefore, ECOTRAP rarely have orifice plugging or blockage problem by dirt in any condition.

    Check the Steam Loss

    How much steam you can save with ECOTRAP is depending entirely on how much loss you have.

    “There are several ways you can check the loss in your existing steam system as follows.”

    [ 1 ] A system with a steam flow meter

    Install ECOTRAP in by-pass line of your existing steam trap. Run the existing steam trap first and then switch it to ECOTRAP. The difference of steam consumption between these two trap operations can be checked and compared.

    [ 2 ] A system with no steam flow meter

  • Check the consumption of fuel in steam boiler.
  • ( In addition, this test may have less accuracy as the running environment may vary during the test.)
  • Check and compare the opening level of an automatic control valve in between ECOTRAP and your existing trap under the same condition. Then you can find out the steam loss of these two traps by Cv Formula.
  • Catch all energy of steam and drain discharged from steam trap into water vessel for a while (180sec – 300sec). Steam loss and drain can be calculated from the data of initial and final temperatures and weights of water.
  • # How to catch the energy from steam trap ? #
  • Put all of drain and steam from the trap into water.
  • After several seconds (over 180sec to 300sec recommend), put off the line from the trap to water.
  • Measure the catching time of discharged energy into water.
  • Steam and drain discharged from the trap can be calculated by measuring temperatures and weights of initial and final water and time.
  • By measuring the steam loss between two traps, the difference can be comfirmed.
  • Refer ASME PTC.39.1 in detail.
    We can give you the summary on your request. If you show us your test data,
    we reply the result of calculation and the examination.

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