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    Flexible butterfly valve

    Flexible butterfly valve
    • sell:021-32051999
    • sell:021-32050777
    • fax:021-66099555

    Details

    • Product Introduction
    • Service Promise
    • Ordering Process

    The expansion butterfly valve/pneumatic expansion butterfly valve/electric expansion butterfly valve is suitable for water supply and drainage of food, medicine, chemical industry, petroleum, electric power, light spinning, papermaking, etc. whose temperature is less than 80, nominal pressure is less than 1.6 MPa, and the function of regulating flow rate and intercepting flow medium on the gas pipeline is to compensate the hot expansion and cold contraction of the pipeline.


    Main features of retractable butterfly valve


    1. The design is novel, reasonable, unique in structure, light in weight, convenient in operation and quick in opening and closing.


    2. The telescopic butterfly valve can not only adjust and intercept the flow and compensate the thermal expansion and cold contraction caused by the temperature difference in the pipeline, but also provide convenience for the installation, replacement and maintenance of the valve.


    3, the sealing parts can be adjusted and replaced, and the sealing performance is reliable.

    Standard for extension butterfly valves


    Design standard: GB/T12238-1989


    Flange joint size: GB/T9113.1-2000; GB/T9113.2-2000


    GB/T9115.1-2000; GB/T9115.2-2000


    Pressure test: GB/T13927-1992; JB/T9092-1999


    Main technical parameters of retractable butterfly valve


    Nominal path
    DN(mm)
    50~2000
    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
    Seal test
    0.6
    0.6
    0.6
    Applicable temperature
    ≤80℃
    Applicable medium
    Air, water, steam, gas, oil and so on.
    Driving form
    Manual, worm and worm gear drive, gas drive and electric drive.


    Main material of expansion butterfly valve


    Part name
    Material Science
    valve body
    Cast iron, cast steel, stainless steel, chrome molybdenum steel, alloy steel
    Disc
    Cast steel, alloy steel, stainless steel, chrome molybdenum steel
    Seal ring
    Rubber, polytetrafluoroethylene, polygreases, stainless steel
    Stem
    2Cr13, stainless steel, chrome molybdenum steel
    Telescopic tube
    Cast iron, cast steel, stainless steel, chrome molybdenum steel
    filler
    Flexible graphite


    Contour dimensions of retractable butterfly valves


    nominal Path
    Outline size (reference value)
    Flange size and bolt hole size (standard value)
    H
    H1
    Most design Large length
    Most design Small length
    Design length
    A
    B
    0.6MPa
    1.0MPa
    1.6MPa
    millimeter
    D
    D1
    D2
    n-d
    D
    D1
    D2
    n-d
    D
    D1
    D2
    n-d
    50
    80
    309
    186
    156
    171
    180
    200
    140
    110
    88
    4-14
    165
    125
    99
    4-18
    165
    125
    99
    4-18
    65
    95
    337
    190
    160
    175
    180
    200
    160
    130
    108
    4-14
    185
    145
    118
    4-18
    185
    145
    118
    4-18
    80
    98
    347
    198
    166
    182
    180
    200
    190
    150
    124
    4-18
    200
    160
    132
    8-18
    200
    160
    132
    8-18
    100
    114
    373
    228
    188
    208
    180
    200
    210
    170
    144
    4-18
    220
    180
    156
    8-18
    220
    180
    156
    8-18
    125
    128
    405
    240
    201
    220
    180
    200
    240
    200
    174
    8-18
    250
    210
    184
    8-18
    250
    210
    184
    8-18
    150
    139
    440
    246
    206
    226
    270
    280
    265
    225
    199
    8-18
    285
    240
    211
    8-22
    285
    240
    211
    8-22
    200
    174
    612
    265
    219
    242
    400
    425
    320
    280
    254
    8-18
    340
    295
    266
    8-22
    340
    295
    266
    12-22
    250
    215
    693
    295
    240
    267
    400
    425
    375
    335
    309
    12-18
    395
    350
    319
    12-22
    405
    355
    319
    12-26
    300
    245
    747
    308
    254
    282
    450
    560
    440
    395
    363
    12-22
    445
    400
    370
    12-22
    460
    410
    370
    12-26
    350
    270
    802
    327
    272
    300
    450
    560
    490
    445
    413
    12-22
    505
    460
    429
    16-22
    520
    470
    429
    16-26
    400
    305
    991
    368
    308
    338
    535
    580
    540
    495
    463
    16-22
    565
    515
    480
    16-26
    580
    525
    480
    16-30
    450
    325
    1037
    370
    310
    340
    535
    580
    595
    550
    518
    16-22
    615
    565
    530
    20-26
    640
    585
    548
    20-30
    500
    360
    1127
    392
    332
    362
    535
    580
    645
    600
    568
    20-22
    670
    620
    582
    20-26
    715
    650
    609
    20-33
    600
    445
    1377
    441
    375
    408
    570
    660
    755
    705
    667
    20-26
    780
    725
    682
    20-30
    840
    770
    720
    20-36
    700
    505
    1496
    460
    400
    430
    750
    550
    860
    810
    772
    24-26
    895
    840
    794
    24-30
    910
    840
    794
    24-36
    800
    560
    1584
    499
    445
    475
    750
    550
    975
    920
    878
    24-30
    1015
    950
    901
    24-33
    1025
    950
    901
    24-39
    900
    630
    1676
    520
    460
    490
    750
    550
    1075
    1020
    978
    24-30
    1115
    1050
    1001
    28-33
    1125
    1050
    1001
    28-39
    1000
    680
    1760
    600
    530
    565
    900
    750
    1175
    1120
    1078
    28-30
    1230
    1160
    1112
    28-36
    1255
    1170
    1112
    28-42
    1200
    795
    2018
    675
    571
    623
    1000
    925
    1405
    1340
    1295
    32-33
    1455
    1380
    1328
    32-39
    1485
    1390
    1328
    32-48
    1400
    900
    2363
    760
    683
    722
    1000
    925
    1630
    1560
    1510
    36-36
    1675
    1590
    1530
    36-42
    1685
    1590
    1530
    36-48
    1600
    1100
    2723
    860
    770
    815
    1000
    925
    1830
    1760
    1710
    40-36
    1915
    1820
    1750
    40-48
    1930
    1820
    1750
    40-56
    1800
    1124
    2844
    930
    830
    880
    1100
    980
    2045
    1970
    1718
    44-39
    2115
    2020
    1950
    44-48
    2130
    2020
    1950
    44-56
    2000
    1292
    3127
    1020
    920
    970
    1100
    980
    2265
    2180
    2125
    48-42
    2325
    2230
    2150
    48-48
    2345
    2230
    2150
    48-62


    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.Flexible 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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