Zhongcheng Valve Co.,Ltd

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Zhongcheng Valve Co.,Ltd was founded in 2003, main in producing and supplying products like Knife gate valve, Ceramic valve, Ball Valve and so on, our products are selled to USA, EUROPE, THAILAND and other markets.

Pneumatic ceramic double-disc gate valve

Pneumatic ceramic double-disc gate valve
  • Model Number: WZ644TC-150LB
  • Brand Name: ZC
  • Place of Origin: Zhejiang, China
  • Minimum Order Quantity: 1 SET
  • Supply Capacity: 5000/month
  • Payment: T/T
  • MemberShip: Free Member
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WZ644TC-150LB Pneumatic ceramic double-disc gate valve Description

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.