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      Flange ball valve

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      Stainless Steel Wafer Type Ball Valve Q71F

      Date:[2016-10-20]    hits: Stainless Steel Wafer Type Ball Valve Q71F

      Overview of Wafer Type Ball Valves

      This product has the advantages of short length, light weight, convenient installation and material saving compared with the ordinary ball valve with reference to the characteristics of Italian products. The folder insulation jacket ball valve insulation effect. In addition, the valve seat with elastic seal structure, reliable sealing, opening and closing easily. With a fire-resistant structure, in case of fire, can still operate reliably and have good sealing. According to user needs, can be equipped with anti-static structure. Set the 90 ° switch with a hole positioning film, according to need to be locked to prevent misuse.

      Application: The ball valve and the folder folder on the jacket jacket ball valve for Class150, PN1.0 ~ 2.5MPa, operating temperature 29 ~ 180 ℃ (PTFE ring for enhanced PTFE) or 29 ~ 300 ℃ (for the ring position Polystyrene), for the cut-off or connected to the pipeline in the medium, the use of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing media, urea and other media .

      Applicable medium: water, gas, oil, natural gas and acid-base corrosive media.

      Applicable temperature: -20 ~ 150 ~ 300 ℃

      Drive: manual, pneumatic, electric and so on.

      Nominal pressure: 1.6 ~ 2.5MPa

      Main parts materials

      No. NO Part Name Material 1 Body Stainless Steel CF8M / CF8 Carbon Steel WCB2 Ball Stainless Steel 316/304 Stainless Steel SS3043 Seal Teflon PTFE PTFE PTFE4 Stem Stainless Steel 316/304 Stainless Steel SS3045 Packing PTFE PTFE Fluoroethylene PTFE6 Positioning Lock Stainless Steel 304 Stainless SS3047 Handle Stainless Steel 304 Stainless SS3048 Stem Nut Stainless Steel 304 Stainless SS3049 Packing Gland Stainless Steel 304 SS30410 Handle Holder Plastic Plastic 11 Sealed Bottle Cap Stainless Steel 316/304 Stainless Steel SS30412 Washer Teflon PTFE Poly Tetra Fluoroethylene

      Main dimensions Unit: mm

      SIZE

      1/2"

      3/4"

      1"

      11/4"

      11/2"

      2"

      21/2"

      3"

      4"

      5"

      6"

      8"

      d

      15

      20

      25

      29

      38


      62

      76

      92

      110

      145

      195

      L

      32

      38.5

      45

      55

      62

      72

      95

      120

      145

      200

      225

      275

      D

      95

      105

      115

      135

      145

      160

      180

      195

      215

      245

      280

      335

      D1

      65

      75

      85

      100

      110

      125

      145

      160

      180

      210

      240

      295

      D2

      45

      55

      65

      78

      85

      100

      120

      135

      155

      185

      210

      265

      H

      62

      70

      79

      86

      92

      102

      158

      172

      187

      200

      240

      278

      E

      110

      125

      135

      150

      150

      180

      250

      300

      350

      650

      840

      1000

      b

      14

      14

      16

      16

      18

      20

      22

      24

      24

      26

      26

      28

      z-d1

      4-14

      4-14

      4-14

      4-18

      4-18

      4-18

      4-18

      8-18

      8-18

      8-18

      8-23

      12-20

      f

      2

      2

      2

      3

      3

      3

      3

      3

      3

      3

      3

      3

      Wafer-type butterfly valve structure is simple, small size, light weight, only by a few parts. And only need to rotate 90 ° to quickly open and close, simple operation, while the valve has good fluid control characteristics. When the ball valve is in the fully open position, the valve plate thickness is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has better flow control characteristics. Tower valve has a bomb seal and metal seal two seal types. Elastic seal valve, ring can be embedded in the valve body or attached to the valve plate around.

      Valves with metal seals generally have a longer life than elastically sealed valves, but they are difficult to completely seal. Metal seals can be adapted to higher operating temperatures, and elastomeric seals have temperature-limited defects.

      If a ball valve is required for flow control, it is important to select the correct size and type of valve. Ball valve structure is particularly suitable for the production of large diameter valves. Ball valve not only in oil, gas, chemicals, water treatment and other general industry is widely used, but also used in thermal power plant cooling water system.

      Commonly used ball valve and flange ball valve on the clip-type two. Wafer-type ball valve is to use double-headed bolts to connect the valve between the two pipe flange, flange valve with a flange on the valve, the valve flange on both ends of the flange connected to the pipe.


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