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                JD745X multifunctional pump control valve

                JD745X multifunctional pump control valve
                • sell:021-32051999
                • sell:021-32050777
                • fax:021-66099555

                Details

                • Product Introduction
                • Service Promise
                • Ordering Process

                JD745X multi-function pump control valve is composed of main valve, regulating valve and nozzle system. The valve body adopts direct-flow valve body. The main valve control chamber is a diaphragm or piston type double control chamber structure. The control chamber is one more than the general hydraulic control valve. The control function of the main valve is increased, and the slow opening of the pump outlet is realized. Full open, slow close, cut-off and other multi-functional control, to achieve a valve, one-time regulation of the pump outlet multi-functional control.

                The nozzle system of this product is controlled by a regulating valve. By setting the opening of the regulating valve, the required control parameters, such as the opening speed of the main valve, the slow closing speed and so on, can be easily realized.

                Working principle

                When the pump starts, the water pressure acts on the lower chamber of the main valve disc and the control chamber. This pressure opens the main valve. The water in the upper chamber of the control chamber is slowly discharged to the outlet through the control valve B, and the main valve opens slowly. Setting the opening of the regulating valve can get the opening speed of the suitable main valve. When the pump stops working, the inlet water pressure drops rapidly and closes most of the opening quickly under the self-weight and spring pressure, which prevents the remaining opening from slowly closing under the combined action of the water pressure in the upper chamber and the water pressure in the lower chamber.

                Setting the opening and opening ratio of the regulating valve A and B can get the proper valve opening and closing speed.

                Work characteristics

                1. Prevent the water hammer effect is good, will slow open, check the speed of closure, slow shut and other elimination of water hammer technology integration, to prevent the pump does not start hammer and stop the pump backflow and water hammer on the water supply pipeline and pump damage.

                2. Easy operation, no need to distribute another control system for the valve, the valve with the pump to open and stop automatically and in order to complete the control function. Proper control parameters can be obtained by setting control valve opening.

                3, the valve body uses a full channel, DC, streamlined design. The hydraulic loss is small and the energy saving effect is good.

                Functions and uses

                The valve is installed at the outlet end of the pump, and the functions of slow opening, full opening, quick closing and slow closing are realized sequentially.

                This product is used in high-rise building water supply system and other water supply system pump outlet pipeline to prevent and weaken the water hammer water hammer when the pump is opened and closed, prevent water backflow to protect the pump, maintain pipeline safety.

                Main technical parameters


                公称压力(Mpa)
                壳体试验压力(MPa)
                密封试验压力(MPa)
                调压范围(MPa)
                缓闭时间(S)
                动作压力(MPa)
                适用介质
                介质温度(℃)
                1.0
                1.5
                1.1
                0.09-0.8
                3-60
                (可调)
                ≥0.07
                0-80
                1.6
                2.4
                1.76
                0.15-1.4
                2.5
                3.75
                2.75
                0.2-2.0


                Material of main parts


                零件名称
                零件材料
                阀体 阀盖
                WCB
                阀座 阀盘
                铜合金/2Cr13
                密封圈 O型圈
                丁腈橡胶
                阀杆
                2Cr13
                弹簧
                50CrVA
                缸套 活塞(活塞型)
                2Cr13
                膜片(膜片型)
                夹织物皮毛傳承吧丁腈橡胶
                调节阀 球阀
                铜合金
                过滤器
                不锈钢


                Parts list:

                1, main valve 2, flow control valve 3, filter.

                Main shape connection dimensions


                DN
                L
                H
                D
                mm
                D1
                mm
                b
                mm
                D2
                mm
                n-Φd
                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
                PN1.0
                PN1.6
                PN2.5
                40
                240
                270
                150
                150
                150
                110
                110
                110
                18
                18
                18
                88
                88
                84
                4-17.5
                4-17.5
                4-18
                50
                240
                270
                165
                165
                165
                125
                125
                125
                20
                20
                20
                102
                102
                99
                4-17.5
                4-17.5
                4-18
                65
                270
                340
                185
                185
                185
                145
                145
                145
                20
                20
                22
                122
                122
                118
                4-17.5
                4-17.5
                8-18
                80
                300
                400
                200
                200
                200
                160
                160
                160
                22
                22
                24
                133
                133
                132
                8-17.5
                8-17.5
                8-18
                100
                350
                440
                220
                220
                235
                180
                180
                190
                24
                24
                24
                158
                158
                156
                8-17.5
                8-17.5
                8-22
                125
                400
                460
                250
                250
                270
                210
                210
                220
                26
                26
                26
                184
                184
                184
                8-17.5
                8-17.5
                8-26
                150
                480
                500
                285
                285
                300
                240
                240
                250
                26
                26
                28
                212
                212
                211
                8-22
                8-22
                8-26
                200
                500
                640
                340
                340
                360
                295
                295
                310
                28
                30
                30
                268
                268
                274
                8-22
                12-22
                12-26
                250
                605
                690
                395
                405
                425
                350
                355
                370
                28
                32
                32
                320
                320
                330
                12-22
                12-26
                12-30
                300
                700
                820
                445
                460
                485
                400
                410
                430
                28
                32
                34
                370
                370
                389
                12-22
                12-26
                16-30
                350
                800
                950
                505
                520
                555
                460
                470
                490
                30
                36
                38
                430
                430
                448
                16-22
                16-26
                16-33
                400
                900
                1400
                565
                580
                620
                515
                525
                550
                32
                38
                40
                482
                482
                503
                16-26
                16-30
                16-36
                450
                1000
                1580
                615
                640
                670
                565
                585
                600
                32
                40
                42
                532
                550
                548
                20-26
                20-30
                20-36
                500
                1100
                1600
                670
                715
                730
                620
                650
                660
                34
                42
                44
                585
                585
                609
                20-26
                20-33
                20-36
                600
                1300
                1815
                780
                840
                845
                725
                770
                770
                36
                48
                46
                685
                685
                720
                20-30
                20-36
                20-39
                700
                1400
                2040
                895
                910
                960
                840
                840
                845
                40
                54
                50
                800
                800
                820
                24-30
                24-36
                24-42
                800
                1500
                2350
                1015
                1025
                1085
                950
                950
                990
                44
                58
                54
                905
                905
                925
                24-33
                24-39
                24-48
                900
                1700
                2606
                1115
                1125
                1185
                1050
                1050
                1090
                46
                62
                58
                1005
                1005
                1028
                28-33
                28-39
                28-48
                1000
                1900
                2765
                1230
                1255
                1320
                1160
                1170
                1210
                50
                66
                62
                1110
                1110
                1140
                28-36
                28-42
                28-56
                1200
                2050
                2950
                1455
                1485
                1530
                1380
                1390
                1420
                56
                52
                70
                1330
                1328
                1350
                32-39
                32-48
                32-55
                1400
                2200
                3180
                1675
                1685
                1755
                1590
                1590
                1640
                62
                58
                76
                1530
                1530
                1560
                36-42
                36-48
                36-60
                1600
                2400
                3400
                1915
                1930
                1955
                1820
                1820
                1860
                68
                64
                84
                1750
                1750
                1780
                40-48
                40-55
                40-60


                安装示意图

                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.JD745X multifunctional pump control 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!