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          PRODUCTS
          PRODUCTS
          YOUR LOCATION£ºHOME >> PRODUCTS >> Ceramic Valve Series >> Pneumatic ceramic double-disc gate valve
          PRODUCT DESCRIPTION£º
          Pneumatic ceramic double-disc gate valve
          PRODUCT DETAILS£º

          Structural Features:

          1. Use a cylinder as the actuator to drive the gate directly the gate directly to move up and down, with fast opening/closing.

          2. The double gates adopt floating connection to produce reliable one-way seal under the medium pressure action. Also the floating connection can drive the gate to rotate up in opening/closing due to misalignment of axial lines so that the friction grains between the valves¡¯s  gate and seat are distributed evenly to produce no linear abrasion,  thus improving its service life greatly.

          3. Sealing surfaces of the valve¡¯s body and gate are lined with anti-wear ceramics,with excellent resistance to abrasion.

          4. Being ceramics, it¡¯s easy for transportation, installation and maintenance.

          Working principle

          When the cylinder drives the gate to move downwards through the valve¡¯s stem, sealing surfaces of the valve¡¯s gate and body will be engaged to cut off the channel, namely, closing; the other way around is opening.

          Materials for main parts

          Item

          Name

          Material

          Item

          Name

          Material

          1

          Body

          WCB

          7

          Middle body

          WCB

          2

          Plate

          Composite engineering ceramic

          8

          Packing

          Flexible Graphite

          3

          Seat

          Composite engineering ceramic

          9

          Packing gland

          2Cr13

          4

          Stem

          2Cr13

          10

          Bracket

          Q235

          5

          Stud

          35CrMoVA

          11

          Pneumatic device

           

          6

          Nut

          25

           

           

           

          Application specification

          Design and manufacture

          CB/T12224

          Connection end dimension

          Structural length

          Manufacturer¡¯s standard

          Flange dimension

          JB/T 79.1

          Inspection and test

          GB/T 9092

          Material

          Carbon steel

          GB/T 12229

          Stainless steel

          GB/T 12230

          Mark

          GB/T 12220

          Supply

          GB/T 12252

          Installation, Use and Maintenance;

          1. Before installation, it¡¯s necessary to clean the valve and remove possible defects caused in the transportation process.

          2. Check carefully whether marks and the nameplate on the valve meet operating requirements.

          3. This valve can be installed on pipelines at any angle.

          4. This valve shall be fully open or fully closed in running and not be used as a throttle valve, or else its sealing surfaces will be washed and get worn faster.

          5. For long-term storage, it shall be stored in a dry and ventilated room with periodic check to avoid rust.

          6. Knocking shall be avoided in the transportation process.

          ZHONGCHENG VALVE GROUP CO.,LTD.
          E-mail: sales@zc-valve.com Tel£º+86-577-67331552
          一本一道波多野结衣无码

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