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    D41W ventilated butterfly valve

    D41W ventilated butterfly valve
    • sell:021-32051999
    • sell:021-32050777
    • fax:021-66099555

    Details

    • Product Introduction
    • Service Promise
    • Ordering Process

    D41W ventilating butterfly valve/D341W worm wheel ventilating butterfly valve/D641W pneumatic ventilating butterfly valve/D941W electric ventilating butterfly valve is processed into sealing ring with the same material as valve body. Its applicable temperature depends on valve body material selection. The nominal pressure is less than 0.6MPa. It is generally applicable to industrial, metallurgical, environmental protection and other pipelines for ventilation and medium flow regulation.


    Main characteristics of ventilated butterfly valve


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


    2, the operation torque is small, easy to operate, labor-saving and dexterous.


    3, adopt suitable materials to meet low, medium and high temperature and corrosive medium.

    D641W pneumatic ventilation butterfly valveD941W electric ventilating butterfly valve

    Standard for ventilation butterfly valves


    Design standard: GB/T12238-1989 JB/T8692-1998


    Flange joint size: GB/T9115.1-2000


    Structure length: GB/T12221-1989


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


    Main technical parameters of ventilated butterfly valve


    Nominal path
    DN(mm)
    50~2000
    Nominal pressure
    PN(MPa)
    0.05
    0.25
    0.6
    Test pressure
    strength test
    0.075
    0.375
    0.9
    Seal test
    ≤1%泄漏量
    Applicable medium
    Gas, dusty gas, flue gas and so on.
    Driving form
    Manual, worm and worm gear drive, gas drive and electric drive.


    Material of main parts of ventilation butterfly valve


    Part name
    Material Science
    valve body
    Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chrome molybdenum titanium steel and so on.
    Disc
    Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chrome molybdenum titanium steel and so on.
    Seal ring
    Same as valve body
    Stem
    Carbon steel, 2Cr13, stainless steel, chrome nickel molybdenum titanium steel
    filler
    Fluoroplastics and flexible graphite


    Selection and applicable temperature of sealing materials for ventilation butterfly valves


    Variety of materials
    carbon steel
    Low temperature carbon steel
    Alloy steel
    austenitic stainless steel
    Chromium molybdenum steel
    Code name
    WCB
    LCB
    WC6或 WC9
    C5或or C12
    鉻Cr-18型e、304、316
    12CrMoV
    Maximum temperature resistance
    425℃
    345℃
    595℃
    650℃
    600℃
    560℃
    Minimum temperature e
    -29℃
    -46℃
    -29℃
    -29℃
    -196℃
    -40℃
    Applicable working temperature
    ≤425℃
    ≤345℃
    ≤595℃
    ≤650℃
    ≤600℃
    ≤560℃


    Dimensions of ventilation butterfly valves


    Nominal path
    Structure length (standard value)
    Shape size (reference value)
    Connection size (standard value)
    reference value (kg)
    0.05MPa和0.25MPa
    0.6MPa
    毫米
    英寸
    L
    H
    H0
    A
    B
    D
    D1
    D2
    n-d
    D
    D1
    D2
    n-d
    50
    2
    108
    70
    286
    125
    193
    140
    110
    88
    4-18
    140
    110
    88
    4-14
    14
    65
    21/2
    112
    80
    306
    125
    193
    160
    130
    108
    4-18
    160
    130
    108
    4-14
    15
    80
    3
    114
    95
    334
    125
    193
    190
    150
    124
    4-18
    190
    150
    124
    4-18
    17
    100
    4
    127
    105
    354
    125
    193
    210
    170
    144
    4-18
    210
    170
    144
    4-18
    20
    125
    5
    140
    120
    384
    125
    193
    240
    200
    174
    8-18
    240
    200
    174
    8-18
    25
    150
    6
    140
    132
    409
    125
    193
    265
    225
    199
    8-18
    265
    225
    199
    8-18
    29
    200
    8
    152
    160
    593
    165
    183
    320
    280
    254
    8-18
    320
    280
    254
    8-18
    47
    250
    10
    165
    187
    650
    165
    283
    375
    335
    309
    12-18
    375
    335
    309
    12-18
    67
    300
    12
    178
    220
    715
    165
    283
    440
    395
    363
    12-22
    440
    395
    363
    12-22
    78
    350
    14
    190
    245
    814
    175
    334
    490
    445
    413
    12-22
    490
    445
    413
    12-22
    96
    400
    16
    216
    270
    863
    175
    334
    540
    495
    463
    16-22
    540
    495
    463
    16-22
    130
    450
    18
    222
    297
    918
    175
    334
    595
    550
    518
    16-22
    595
    550
    518
    16-22
    142
    500
    20
    229
    322
    1016
    210
    425
    645
    600
    568
    20-22
    645
    600
    568
    20-22
    191
    600
    24
    267
    377
    1128
    210
    425
    755
    705
    667
    20-26
    755
    705
    667
    20-26
    230
    700
    28
    292
    430
    1233
    210
    425
    860
    810
    772
    24-26
    860
    810
    772
    24-26
    250
    800
    32
    318
    487
    1344
    210
    425
    975
    920
    878
    24-30
    975
    920
    878
    24-30
    320
    900
    36
    330
    537
    1560
    320
    620
    1075
    1020
    978
    24-30
    1075
    1020
    978
    24-30
    410
    1000
    40
    410
    587
    1660
    320
    620
    1175
    1120
    1078
    28-30
    1175
    1120
    1078
    28-30
    510
    1200
    48
    470
    687
    1890
    320
    620
    1375
    1320
    1280
    32-30
    1405
    1340
    1295
    32-33
    720
    1400
    56
    530
    760
    2670
    575
    714
    1575
    1520
    1480
    36-30
    1630
    1560
    1510
    36-36
    1270
    1600
    64
    600
    895
    2810
    575
    714
    1790
    1730
    1690
    40-30
    1830
    1760
    1710
    40-36
    1730
    1800
    72
    670
    995
    3020
    575
    714
    1990
    1930
    1890
    44-30
    2045
    1970
    1918
    44-39
    2750
    2000
    80
    760
    1095
    3220
    656
    810
    2190
    2130
    2090
    48-30
    2265
    2180
    2125
    48-42
    3050


    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.D41W ventilated 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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