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    Electric three eccentric butterfly valve

    Electric three eccentric butterfly valve
    • sell:021-32051999
    • sell:021-32050777
    • fax:021-66099555

    Details

    • Product Introduction
    • Service Promise
    • Ordering Process

    Electric tri-eccentric butterfly valve is composed of rotary electric actuator and tri-eccentric butterfly valve body. The valve body adopts tri-eccentric metal hard sealing structure. The valve seat and sealing surface are made of stainless steel. It has good corrosion resistance and bidirectional sealing function. The friction between the butterfly plate and the valve seat of electric tri-eccentric butterfly valve is less and the life is longer. It has wide application scope and convenient maintenance. Electric tri-eccentric butterfly valve is widely used in petroleum, chemical, electric power, metallurgy, steel, paper, medicine, food, textile, light industry and other industries.


    Main features of electric three eccentric butterfly valve


    1. The valve adopts three eccentric sealing structure, and the valve seat and butterfly plate wear little.


    2. The sealing ring is made of stainless steel. It has the double advantages of hard metal sealing and elastic sealing. It has excellent sealing performance, corrosion resistance and long service life, no matter at low and high temperature.


    3. Butterfly plate sealing surface is made of cobalt base cemented carbide, the sealing surface is wear resistant and has long service life.


    4, large diameter butterfly plate adopts quilting structure, high strength, large flow area and small flow resistance.


    5. Electric tri-eccentric butterfly valve has two-way sealing function. It can be installed in any direction without the restriction of the flow direction of medium or the influence of space position.


    6, the driving device can be installed at multiple stations (rotating 90 degrees or 180 degrees) for user convenience.


    Main technical parameters of electric three eccentric butterfly valve


    valve body


    type of body
    Straight through casting valve
    Nominal path
    DN50~1000mm
    Nominal pressure
    PN1.0、1.6、2.5MPa
    Flanges standard
    JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97等
    Connection form
    Flange type
    Valve cover form
    One in one
    Capping type
    Pressing plate type
    Sealed packing
    V PTFE packing and flexible graphite packing


    Valve inner parts


    Valve plate form
    Sphenoid
    Flow characteristics
    Approximate equal percentage


    Executive Agency


    Actuator type
    DZW multi turn electrical assembly, DSR compact electrical assembly, HQ intelligent electric installation.
    Main technical parameters
    DZW multi turn electrical assembly, DSR compact electrical assembly, HQ intelligent electric installation.
    Protection level: quite IP67, flameproof logo: Exd II BT4, manual operation function: handle.
    Ambient temperature: -25 ~ +70 C, ambient humidity: less than 95%


    Note: for detailed actuator parameters, please go to the electric actuator page for inspection.


    Main material of electric three eccentric butterfly valve


    1
    base
    HT200、WCB、CF3、CF3M、CF8、CF8M
    法蘭式
    對(duì)夾式
    2
    Lower sleeve
    銅合金、304、316
    3
    valve body
    HT200、WCB、CF3、CF3M、CF8、CF8M
    4
    Seal ring
    NBR丁晴橡膠、PTFE、PPL、304、316
    5
    Seal ring
    HT200、WCB、CF3、CF3M、CF8、CF8M
    6
    Fixed pin
    25、35、45
    7、8
    Upper and lower valve shaft
    2Cr13、304、316、316L
    9
    Upper shaft sleeve
    銅合金、304、316
    10
    filler
    聚四氟乙烯/柔性石墨
    11、12
    Packing gland assembly
    HT200、WCB、CF3、CF3M、CF8、CF8M


    Main performance index of electric three eccentric butterfly valve


    Nominal pathDN (mm)
    50
    65
    80
    100
    125
    150
    200
    250
    300
    350
    400
    450
    500
    600
    700
    800
    900
    1000
    Rated discharge coefficient Cv
    110
    180
    232
    368
    656
    1000
    1760
    3390
    4730
    6700
    8900
    10500
    14800
    20500
    31000
    43000
    55600
    70700
    Allowable pressure difference (MPa)
    Nominal pressure
    Action range
    0~90°
    Leakage
    Press GB/T4213-92, which is 10-4 of Kv value.
    Basic error
    ±2.5%
    Return difference
    ±2.5%
    dead zone
    1%
    Adjustable range
    50:1


    Three eccentric sealing principle of electric three eccentric butterfly valve




    Since the center line of the seat is then formed at a beta angle with the center line of the valve body on the basis of the double eccentric sealing butterfly valve, the offset result can be seen from the A-A section of Fig. 2. When the triple eccentric hard sealing butterfly valve is fully opened, the butterfly plate seal surface will completely detach from the seat seal surface, and the butterfly plate seal surface and the butterfly plate seal surface will be completely open. A clearance Y is formed between the sealing surfaces of the valve body and that of the double eccentric sealing butterfly valve. It can be seen from the diagram that the tangent of the turning trajectory of the sealing surface of the butterfly plate and the sealing surface of the valve seat form an angle of theta 1 and theta 2 due to the formation of the position of the beta angle. When the butterfly plate opens and closes, the sealing surface of the butterfly plate gradually disengages from the sealing surface of the valve seat and gradually presses in, thus completely eliminating the mechanical wear and abrasion between the two sealing pairs of the butterfly valve when the butterfly plate opens and closes. When the butterfly valve is opened from 0 degrees to 90 degrees, the sealing surface of the butterfly plate will immediately detach from the sealing surface of the valve seat at the moment of opening. When the butterfly valve is closed from 90 degrees to 0 degrees, the sealing surface of the butterfly plate will contact and press the sealing surface of the valve seat only at the moment of closing.

    Main dimensions of electric three eccentric butterfly valves


    Nominal diameter DN (mm)
    50
    65
    80
    100
    125
    150
    200
    250
    300
    350
    400
    450
    500
    600
    700
    800
    900
    1000
    L
    108
    112
    114
    127
    140
    140
    152
    165
    178
    190
    216
    222
    229
    267
    292
    318
    330
    410
    L1
    43
    46
    49
    56
    64
    70
    71
    76
    83
    92
    102
    113
    127
    154
    165
    190
    203
    216
    H
    112
    115
    120
    140
    170
    180
    210
    240
    290
    320
    350
    380
    410
    470
    550
    640
    710
    770
    n-φd
    4-18
    4-18
    8-18
    8-18
    8-18
    8-22
    12-22
    12-26
    12-26
    16-26
    16-30
    20-30
    20-33
    20-36
    24-36
    24-39
    28-39
    28-42
    H1
    Depending on the executing agency.
    A
    Depending on the torque required by the valve, the configuration models are different and the dimensions are different.
    D
    165
    185
    200
    220
    250
    285
    340
    405
    460
    520
    580
    640
    715
    840
    910
    1025
    1125
    1255
    D1
    125
    145
    160
    180
    210
    240
    295
    355
    410
    470
    525
    585
    650
    770
    840
    950
    1050
    1170


    The best quality, first-class service Qigao creates more value for you!

    "Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

    Product Standards:

    Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

    pre-sale service:

    Product introduction, technical exchange, non-standard product design, troubleshooting。

    Sale service:

    A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

    After sales service:

    1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

    2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

    3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

    4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

    1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

    a、Structure length;

    b、Connection Type;

    c、Nominal diameter, full diameter, reduced diameter, pipe size;

    d、Operating medium and temperature, pressure range;

    e、Tests, inspection standards and other requirements

    2、The factory can configure various types of driving devices according to customer's specific requirements.。

    3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

    4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

     

    Order Process:

    1、Customer purchase list fax to021-33872143,Or call us 021-33872141

    2、Receive customer purchase list, provide valve model selection and quotation (price list)。

    3、Specific agreement: delivery date, special requirements, etc.。

    download Google:

    1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

    a、Structure length;

    b、Connection Type;

    c、Nominal diameter, full diameter, reduced diameter, pipe size;

    d、Operating medium and temperature, pressure range;

    e、Tests, inspection standards and other requirements

    2、The factory can configure various types of driving devices according to customer's specific requirements.。

    3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

    4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。

    Sale service:

    Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

    For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

    After sales service:

    1、"Qigao" product quality period is from the factory12Month, practiceThree packsService (return, replacement, warranty)。

    2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
    In order to further improve product quality。

    3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

    4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

    statement

    1. All text, data and pictures in this article are for reference only.Electric three eccentric butterfly valvePlease contact us at 4000-700-665 for details of performance, size and price.
    2. If there is no explanation, this article is original, reprint, please indicate the address of this article, thank you for your cooperation!
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