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    500X relief / hold valve

    500X relief / hold valve
    • sell:021-32051999
    • sell:021-32050777
    • fax:021-66099555

    Details

    • Product Introduction
    • Service Promise
    • Ordering Process

    The 500X pressure relief/holding valve is mainly used in fire fighting or other water supply systems to prevent system overpressure or maintain pressure in fire fighting water supply systems. After the fire pump is closed, it can also reduce the impact of the water hammer. It is also used for water hammer devices in large water supply systems. And the valve control system is equipped with a clean filter at the entrance, the use of fluid characteristics, so that the proportion of larger, larger diameter suspended particles will not enter the control system to ensure smooth circulation of the system, so that the valve can operate safely and reliably. The system has stable movement, high strength and long service life.

    Structural features and uses

    The 500X relief/holding valve consists of a main valve, a relief/holding valve needle valve, a ball valve, a microfilter and a pressure gauge to form a hydraulic control nozzle system. Using hydraulic automatic operation, it can be used as pressure relief valve and can also be used as holding valve. When used as relief valve, the water supply pressure can be maintained below the set safety value; when used as pressure holding valve, the upstream water pressure of the main valve can be maintained above the set value, and the upstream water supply pressure of the main valve can be maintained.

    This product uses hydraulic self-control, no need of other devices and energy, simple maintenance, and multi use of one valve.

    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

    1. Pressure relief valve: When the pressure relief / pressure holding guide valve is adjusted to the pressure relief state, water flows through the needle valve, main valve control room, ball valve A, pressure relief / pressure holding guide valve, ball valve B to the outlet, at this time the main valve is in the open state. When the inlet pressure exceeds the safety value set by the pressure relief/pressure holding guide valve, the pressure relief guide valve will automatically open, and part of the water will be discharged through the ball valve C to make the pipeline pressure relief. When the pressure is restored to the safe value, the relief valve automatically closes. When the relief valve is used, the ball valves are always open.

    2. Pressure-holding valve: When the relief/pressure-holding guide valve is adjusted to the pressure-holding state, as long as the inlet water pressure of the main valve is lower than the set value of the pilot valve, the pilot valve is closed. The main control room is boosted and the main valve is closed. When the upstream water supply pressure of the main valve exceeds the set pressure of the pilot valve, the pressure holding guide valve can be opened. The water in the control room is discharged through the ball valve to the outlet, and the pressure reducing main valve in the control room is opened to start the water supply, that is, the upstream water pressure is maintained. When holding the pressure valve, the ball valve C is usually closed or replaced with a plug.

    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


    Material of main parts


    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


    Parts list:

    1, pilot valve 2, needle valve 3, ball valve 4, main valve 5, pressure gauge.

    Main shape connection dimensions


    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
    330
    130
    550
    460
    116
    105
    105
    105
    75
    75
    75
    58
    58
    56
    4-13.5
    4-13.5
    4-14
    25
    180
    330
    130
    550
    460
    116
    115
    115
    115
    85
    85
    85
    68
    68
    65
    4-13.5
    4-13.5
    4-14
    32
    180
    330
    130
    550
    460
    116
    140
    140
    140
    100
    100
    100
    78
    78
    76
    4-17.5
    4-17.5
    4-18
    40
    240
    345
    135
    610
    516
    170
    150
    150
    150
    110
    110
    110
    88
    88
    84
    4-17.5
    4-17.5
    4-18
    50
    240
    345
    135
    610
    516
    170
    165
    165
    165
    125
    125
    125
    102
    102
    99
    4-17.5
    4-17.5
    4-18
    65
    250
    355
    140
    625
    520
    180
    185
    185
    185
    145
    145
    145
    122
    122
    118
    4-17.5
    4-17.5
    8-18
    80
    285
    360
    146
    645
    538
    210
    200
    200
    200
    160
    160
    160
    133
    133
    132
    8-17.5
    8-17.5
    8-18
    100
    360
    400
    156
    750
    596
    275
    220
    220
    235
    180
    180
    190
    158
    158
    156
    8-17.5
    8-17.5
    8-22
    125
    400
    420
    170
    808
    655
    310
    250
    250
    270
    210
    210
    220
    184
    184
    184
    8-17.5
    8-17.5
    8-26
    150
    455
    435
    186
    864
    710
    355
    285
    285
    300
    240
    240
    250
    212
    212
    211
    8-22
    8-22
    8-26
    200
    585
    480
    206
    1135
    805
    460
    340
    340
    360
    295
    295
    310
    268
    268
    274
    8-22
    12-22
    12-26
    250
    650
    530
    226
    1185
    855
    500
    395
    405
    425
    350
    355
    370
    320
    320
    330
    12-22
    12-26
    12-30
    300
    800
    575
    246
    1325
    955
    580
    445
    460
    485
    400
    410
    430
    370
    370
    389
    12-22
    12-26
    16-30
    350
    860
    620
    275
    1385
    990
    640
    505
    520
    555
    460
    470
    490
    430
    430
    448
    16-22
    16-26
    16-33
    400
    960
    635
    286
    1445
    1030
    715
    565
    580
    620
    515
    525
    550
    482
    482
    503
    16-26
    16-30
    16-36
    450
    1075
    665
    320
    1325
    905
    780
    615
    640
    670
    565
    585
    600
    532
    550
    548
    20-26
    20-30
    20-36
    500
    1075
    695
    348
    1430
    960
    830
    670
    715
    730
    620
    650
    660
    585
    585
    609
    20-26
    20-33
    20-36
    600
    1230
    720
    372
    1565
    1020
    920
    780
    840
    845
    725
    770
    770
    685
    685
    720
    20-30
    20-36
    20-39
    700
    1650
    770
    422
    1755
    1160
    980
    895
    910
    960
    840
    840
    875
    800
    800
    820
    24-30
    24-36
    24-42
    800
    1750
    805
    458
    2230
    1515
    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.500X relief / hold 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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