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    300X slow closing check valve

    300X slow closing check valve
    • sell:021-32051999
    • sell:021-32050777
    • fax:021-66099555

    Details

    • Product Introduction
    • Service Promise
    • Ordering Process

    The 300X slow-closing check valve consists of main valve, one-way valve, needle valve, ball valve, micro-filter and pressure gauge. Using hydraulic automatic operation, the main valve can get the best opening or closing speed. To prevent the water hammer from hitting, we can achieve the effect of slow closing and silencing.

    This product uses hydraulic self-control, does not need other devices and energy, easy maintenance, open and slow shut smoothly.

    This series of valve products are widely used in high-rise buildings, living areas and other water supply network systems and urban water supply projects.

    Working principle

    When the valve feeds water from the inlet, the water enters the main valve control room through a micro filter, a needle valve and a one-way valve, and then drains downstream through a ball valve. Because the needle valve opening is less than the ball valve opening, that is, the main valve control room drainage speed is greater than the water intake speed, so the control room pressure reduces, acting on the lower end of the main valve disc inlet pressure open the main valve downstream water supply.

    When the pipeline stops water supply, if the downstream water begins to flow back, part of the backflow water enters the main control room through the ball valve. Because of the unidirectional valve, the backflow water can not flow out of the main control room, causing the main control room to gradually pressurize, slowly closing the main valve.

    Main technical parameters

    公稱壓力(Mpa)
    殼體試驗壓力(MPa)
    密封試驗壓力(MPa)
    適用介質(zhì)
    介質(zhì)溫度(℃)
    1.0
    1.5
    1.1
    0-80
    1.6
    2.4
    1.76
    2.5
    3.75
    2.75


    主要零件材料


    零件名稱
    零件材料
    閥體 閥蓋
    WCB
    閥座 閥盤
    銅合金
    密封圈 O型圈
    丁腈橡膠
    閥桿
    2Cr13
    彈簧
    50CrVA
    針型閥
    銅合金
    球閥
    銅合金
    浮球閥
    銅合金
    微型過濾器
    不銹鋼


    部件列表
    1、針閥2、主閥3、球閥4、壓力表5、單向閥
    主要外形連接尺寸


    DN
    L
    A
    A1
    H
    H1
    F
    D
    mm
    D1
    mm
    D2
    mm
    n-Φd
    mm
    mm
    mm
    mm
    mm
    mm
    PN1.0
    PN1.6
    PN2.5
    PN1.0
    PN1.6
    PN2.5
    PN1.0
    PN1.6
    PN2.5
    PN1.0
    PN1.6
    PN2.5
    20
    180
    282
    200
    172
    106
    116
    105
    105
    105
    75
    75
    75
    58
    58
    56
    4-13.5
    4-13.5
    4-14
    25
    180
    282
    200
    172
    106
    116
    115
    115
    115
    85
    85
    85
    68
    68
    65
    4-13.5
    4-13.5
    4-14
    32
    180
    282
    200
    172
    106
    116
    140
    140
    140
    100
    100
    100
    78
    78
    76
    4-17.5
    4-17.5
    4-18
    40
    240
    320
    210
    265
    210
    170
    150
    150
    150
    110
    110
    110
    88
    88
    84
    4-17.5
    4-17.5
    4-18
    50
    240
    320
    210
    265
    210
    170
    165
    165
    165
    125
    125
    125
    102
    102
    99
    4-17.5
    4-17.5
    4-18
    65
    250
    330
    215
    310
    215
    180
    185
    185
    185
    145
    145
    145
    122
    122
    118
    4-17.5
    4-17.5
    8-18
    80
    285
    350
    220
    350
    245
    210
    200
    200
    200
    160
    160
    160
    133
    133
    132
    8-17.5
    8-17.5
    8-18
    100
    360
    410
    230
    460
    305
    275
    220
    220
    235
    180
    180
    190
    158
    158
    156
    8-17.5
    8-17.5
    8-22
    125
    400
    420
    245
    520
    365
    310
    250
    250
    270
    210
    210
    220
    184
    184
    184
    8-17.5
    8-17.5
    8-26
    150
    455
    430
    260
    570
    415
    355
    285
    285
    300
    240
    240
    250
    212
    212
    211
    8-22
    8-22
    8-26
    200
    585
    440
    280
    695
    510
    460
    340
    340
    360
    295
    295
    310
    268
    268
    274
    8-22
    12-22
    12-26
    250
    650
    450
    300
    780
    560
    500
    395
    405
    425
    350
    355
    370
    320
    320
    330
    12-22
    12-26
    12-30
    300
    800
    460
    320
    902
    658
    580
    445
    460
    485
    400
    410
    430
    370
    370
    389
    12-22
    12-26
    16-30
    350
    860
    470
    340
    1025
    696
    640
    505
    520
    555
    460
    470
    490
    430
    430
    448
    16-22
    16-26
    16-33
    400
    960
    480
    360
    1080
    735
    715
    565
    580
    620
    515
    525
    550
    482
    482
    503
    16-26
    16-30
    16-36
    450
    1075
    530
    395
    1030
    610
    780
    615
    640
    670
    565
    585
    600
    532
    550
    548
    20-26
    20-30
    20-36
    500
    1075
    580
    420
    1135
    665
    830
    670
    715
    730
    620
    650
    660
    585
    585
    609
    20-26
    20-33
    20-36
    600
    1230
    600
    445
    1270
    725
    920
    780
    840
    845
    725
    770
    770
    685
    685
    720
    20-30
    20-36
    20-39
    700
    1650
    730
    495
    1460
    865
    980
    895
    910
    960
    840
    840
    875
    800
    800
    820
    24-30
    24-36
    24-42
    800
    1750
    830
    530
    1640
    925
    1050
    1015
    1025
    1085
    950
    950
    990
    905
    905
    928
    24-33
    24-39
    24-48


    安裝示意圖

    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.300X slow closing check 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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