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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(yàn)壓力(MPa)
            密封試驗(yàn)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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