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    Pneumatic three eccentric butterfly valve

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

    Details

    • Product Introduction
    • Service Promise
    • Ordering Process

    Pneumatic tri-eccentric butterfly valve is composed of piston pneumatic actuator and tri-eccentric metal seal valve body. Its structure is designed on the principle of three-dimensional coring. The valve seat adopts a multi-level structure compatible with hard and soft seals. It is exquisite in processing and advanced in technology. Pneumatic tri-eccentric butterfly valve can be equipped with external pneumatic valve positioner, input control signal (4-20mADC or 1-5VDC) air source can control operation, can also be equipped with stroke limit switch, solenoid valve, triple and 0.4-0.7MPa air source to achieve switching operation, and send two pairs of passive contact signals indicating the valve switch. Pneumatic tri-eccentric butterfly valve consists of valve body, butterfly plate, multi-level seat, valve stem, transmission mechanism and other major components, is a long life, energy-saving butterfly valve. Pneumatic tri-eccentric butterfly valve is widely used in metallurgy, power, petroleum, chemical, air, gas, combustible gas, water supply and drainage pipelines and other corrosive media.


    Main characteristics of pneumatic 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. Pneumatic 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 pneumatic three eccentric butterfly valve


    valve body


    type of body
    直通鑄造蝶閥
    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
    Gland pressing type
    密封填料
    V PTFE packing and flexible graphite packing


    Valve inner parts


    Valve plate form
    Vertical plate type (butterfly shaped)
    Flow characteristics
    Regulated (approximate equal percentage), switch type (linear)


    Executive Agency


    Actuator type
    GT series, ST series, AT series and AW series single and double acting pneumatic actuators
    Gas supply pressure
    400~700KPa
    air connection
    G1/4"、G1/8"、G3/8"、G1/2"
    ambient temperature
    -30~+70℃
    Form of action

    Single acting actuator: B: when the gas is lost, the valve position is opened (FO); the gas opening type (K) is the valve position (FC) when the gas is lost.

    Double-acting actuator: air-closed type (B) - valve position retention (FL) during degassing; air-open type (K) - valve position retention (FL) during degassing

    Appendable appendage
    Locator, solenoid valve, air filter pressure reducer, retaining valve, stroke switch, valve position conveyor, handwheel mechanism, etc.


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


    Pneumatic three eccentric butterfly valve main parts material


    1
    base
    HT200、WCB、CF3、CF3M、CF8、CF8M
    法蘭式
    對夾式
    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
    Pressure plate, butterfly plate
    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
    Polytetrafluoroethylene / flexible graphite
    11、12
    Packing gland assembly
    HT200、WCB、CF3、CF3M、CF8、CF8M


    Main performance index of pneumatic three eccentric butterfly valve


    Return difference
    Positioner: less than 2% of the total stroke.
    基本誤差
    Positioner: ± 2% less than full stroke.
    泄露量l/h
    Comply with ANSI B16.104 IV level standard
    可調(diào)范圍R
    50:1


    Main performance specification of pneumatic three eccentric butterfly valve


    Nominal diameter DN(mm)
    50-1800
    Nominal pressure
    PN(MPa)
    0.6
    1.0
    1.6
    Test pressure
    strength test
    0.9
    1.5
    2.4
    Seal test
    0.66
    1.1
    1.76
    Low pressure airtightness test
    0.6
    0.6
    0.6
    Applicable medium
    Air, water, sewage, steam, gas, oil, etc.


    Main dimensions of pneumatic 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.Pneumatic 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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