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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!