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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!
      亚洲AV免费看|国产人妖乱国产精品人妖|中文字幕乱伦说说|日韩中文乱码人妻出轨|秋霞国产一级特黄欧美一级|色婷婷av一区二区三区之红樱桃|中文字幕一区二久久网站|久久精品欧美一区二区三区不卡

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