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            Flexible butterfly valve

            Flexible butterfly valve
            • sell:021-32051999
            • sell:021-32050777
            • fax:021-66099555

            Details

            • Product Introduction
            • Service Promise
            • Ordering Process

            The expansion butterfly valve/pneumatic expansion butterfly valve/electric expansion butterfly valve is suitable for water supply and drainage of food, medicine, chemical industry, petroleum, electric power, light spinning, papermaking, etc. whose temperature is less than 80, nominal pressure is less than 1.6 MPa, and the function of regulating flow rate and intercepting flow medium on the gas pipeline is to compensate the hot expansion and cold contraction of the pipeline.


            Main features of retractable butterfly valve


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


            2. The telescopic butterfly valve can not only adjust and intercept the flow and compensate the thermal expansion and cold contraction caused by the temperature difference in the pipeline, but also provide convenience for the installation, replacement and maintenance of the valve.


            3, the sealing parts can be adjusted and replaced, and the sealing performance is reliable.

            Standard for extension butterfly valves


            Design standard: GB/T12238-1989


            Flange joint size: GB/T9113.1-2000; GB/T9113.2-2000


            GB/T9115.1-2000; GB/T9115.2-2000


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


            Main technical parameters of retractable butterfly valve


            Nominal path
            DN(mm)
            50~2000
            Nominal pressure
            PN(MPa)
            0.6
            1.0
            1.6
            Test pressure
            strength test
            0.9
            1.5
            2.4
            Seal test
            0.66
            1.1
            1.76
            Seal test
            0.6
            0.6
            0.6
            Applicable temperature
            ≤80℃
            Applicable medium
            Air, water, steam, gas, oil and so on.
            Driving form
            Manual, worm and worm gear drive, gas drive and electric drive.


            Main material of expansion butterfly valve


            Part name
            Material Science
            valve body
            Cast iron, cast steel, stainless steel, chrome molybdenum steel, alloy steel
            Disc
            Cast steel, alloy steel, stainless steel, chrome molybdenum steel
            Seal ring
            Rubber, polytetrafluoroethylene, polygreases, stainless steel
            Stem
            2Cr13, stainless steel, chrome molybdenum steel
            Telescopic tube
            Cast iron, cast steel, stainless steel, chrome molybdenum steel
            filler
            Flexible graphite


            Contour dimensions of retractable butterfly valves


            nominal Path
            Outline size (reference value)
            Flange size and bolt hole size (standard value)
            H
            H1
            Most design Large length
            Most design Small length
            Design length
            A
            B
            0.6MPa
            1.0MPa
            1.6MPa
            millimeter
            D
            D1
            D2
            n-d
            D
            D1
            D2
            n-d
            D
            D1
            D2
            n-d
            50
            80
            309
            186
            156
            171
            180
            200
            140
            110
            88
            4-14
            165
            125
            99
            4-18
            165
            125
            99
            4-18
            65
            95
            337
            190
            160
            175
            180
            200
            160
            130
            108
            4-14
            185
            145
            118
            4-18
            185
            145
            118
            4-18
            80
            98
            347
            198
            166
            182
            180
            200
            190
            150
            124
            4-18
            200
            160
            132
            8-18
            200
            160
            132
            8-18
            100
            114
            373
            228
            188
            208
            180
            200
            210
            170
            144
            4-18
            220
            180
            156
            8-18
            220
            180
            156
            8-18
            125
            128
            405
            240
            201
            220
            180
            200
            240
            200
            174
            8-18
            250
            210
            184
            8-18
            250
            210
            184
            8-18
            150
            139
            440
            246
            206
            226
            270
            280
            265
            225
            199
            8-18
            285
            240
            211
            8-22
            285
            240
            211
            8-22
            200
            174
            612
            265
            219
            242
            400
            425
            320
            280
            254
            8-18
            340
            295
            266
            8-22
            340
            295
            266
            12-22
            250
            215
            693
            295
            240
            267
            400
            425
            375
            335
            309
            12-18
            395
            350
            319
            12-22
            405
            355
            319
            12-26
            300
            245
            747
            308
            254
            282
            450
            560
            440
            395
            363
            12-22
            445
            400
            370
            12-22
            460
            410
            370
            12-26
            350
            270
            802
            327
            272
            300
            450
            560
            490
            445
            413
            12-22
            505
            460
            429
            16-22
            520
            470
            429
            16-26
            400
            305
            991
            368
            308
            338
            535
            580
            540
            495
            463
            16-22
            565
            515
            480
            16-26
            580
            525
            480
            16-30
            450
            325
            1037
            370
            310
            340
            535
            580
            595
            550
            518
            16-22
            615
            565
            530
            20-26
            640
            585
            548
            20-30
            500
            360
            1127
            392
            332
            362
            535
            580
            645
            600
            568
            20-22
            670
            620
            582
            20-26
            715
            650
            609
            20-33
            600
            445
            1377
            441
            375
            408
            570
            660
            755
            705
            667
            20-26
            780
            725
            682
            20-30
            840
            770
            720
            20-36
            700
            505
            1496
            460
            400
            430
            750
            550
            860
            810
            772
            24-26
            895
            840
            794
            24-30
            910
            840
            794
            24-36
            800
            560
            1584
            499
            445
            475
            750
            550
            975
            920
            878
            24-30
            1015
            950
            901
            24-33
            1025
            950
            901
            24-39
            900
            630
            1676
            520
            460
            490
            750
            550
            1075
            1020
            978
            24-30
            1115
            1050
            1001
            28-33
            1125
            1050
            1001
            28-39
            1000
            680
            1760
            600
            530
            565
            900
            750
            1175
            1120
            1078
            28-30
            1230
            1160
            1112
            28-36
            1255
            1170
            1112
            28-42
            1200
            795
            2018
            675
            571
            623
            1000
            925
            1405
            1340
            1295
            32-33
            1455
            1380
            1328
            32-39
            1485
            1390
            1328
            32-48
            1400
            900
            2363
            760
            683
            722
            1000
            925
            1630
            1560
            1510
            36-36
            1675
            1590
            1530
            36-42
            1685
            1590
            1530
            36-48
            1600
            1100
            2723
            860
            770
            815
            1000
            925
            1830
            1760
            1710
            40-36
            1915
            1820
            1750
            40-48
            1930
            1820
            1750
            40-56
            1800
            1124
            2844
            930
            830
            880
            1100
            980
            2045
            1970
            1718
            44-39
            2115
            2020
            1950
            44-48
            2130
            2020
            1950
            44-56
            2000
            1292
            3127
            1020
            920
            970
            1100
            980
            2265
            2180
            2125
            48-42
            2325
            2230
            2150
            48-48
            2345
            2230
            2150
            48-62


            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.Flexible 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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