Pneumatic Ceramic Double-Disc Gate Valve (GZT644TC)

Model NO.: GZT644TC
Thread Position of Valve Rod: Outside Gate Valve
Usage: Emptying
Standard: DIN
Application: Industrial Usage
Suitable Temperature: Below 150 Deg C
Size: Dn50-Dn400
Medium: Dry Ash in Power Plant, Slurry, Cement Ash, Powder
Design Pressure: Pn10, Pn16
Trademark: GOOLE, OEM
Transport Package: Plywood Case
Specification: CE, SGS, GMP
Origin: Wenzhou, Zhejiang, China
HS Code: 8481804090
Model NO.: GZT644TC
Thread Position of Valve Rod: Outside Gate Valve
Usage: Emptying
Standard: DIN
Application: Industrial Usage
Suitable Temperature: Below 150 Deg C
Size: Dn50-Dn400
Medium: Dry Ash in Power Plant, Slurry, Cement Ash, Powder
Design Pressure: Pn10, Pn16
Trademark: GOOLE, OEM
Transport Package: Plywood Case
Specification: CE, SGS, GMP
Origin: Wenzhou, Zhejiang, China
HS Code: 8481804090
GZT644TC Pneumatic Ceramic Double-Disc Gate Valve
Installation, Use & 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 insstalled 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 whth periodic check to avoid rust.
6. Knocking shall be avoided in the transportation process.

Structural Features:
1. Use a Cylinder as the actuator to drive 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 misaliginment of axial lines so that the friction grains between the valves' 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 compact, 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.

Main Parts and Materials
Sr No. Parts Material Sr No. Parts Material
1 Body WCB 7 Middle Body WCB
2 Disc Ceramic 8 Packing Flexible Graphite
3 Seat Ceramic 9 Packing Gland 2Cr13
4 Stem 2Cr13 10 Bracket Q235
5 Stud 35CrMoVA 11 Pneumatic Actuator Aluminum Body
6 Nut 25      

Application Specification
1. Design and Manufacture: GB/T 12224
2. Face to Face Dimension: Manufacturer's Standard
3. Flange Dimension: JB/T 79.1, ANSI B16.5  DIN 2543, JIS B2020
4. Inspection and Test: GB/T 9092
5. Material Standard: GB/T 12229 for Carbon Steel, GB/T 12230 for Stainless Steel

Main External and connecting Dimensions
DN PN L D D1 C H n-d  
50 10 200 160 125 16 520 4-18  
65 220 180 145 18 595 4-18  
80 240 195 160 20 635 8-18  
100 280 215 180 20 630 8-18  
125 300 245 210 22 715 8-18  
150 320 280 240 24 840 8-23  
175 320 310 270 26 885 8-23  
200 350 335 295 26 1155 8-23  
250 400 405 350 30 1400 8-23  
300 450 460 400 30 1800 12-23  

 
Pneumatic Ceramic Double-Disc Gate Valve (GZT644TC)
Pneumatic Ceramic Double-Disc Gate Valve (GZT644TC)
  GZT644TC Pneumatic Ceramic Double-Disc Gate Valve
Installation, Use & 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 insstalled 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 whth periodic check to avoid rust.
6. Knocking shall be avoided in the transportation process.

Structural Features:
1. Use a Cylinder as the actuator to drive 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 misaliginment of axial lines so that the friction grains between the valves' 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 compact, 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.

Main Parts and Materials
Sr No. Parts Material Sr No. Parts Material
1 Body WCB 7 Middle Body WCB
2 Disc Ceramic 8 Packing Flexible Graphite
3 Seat Ceramic 9 Packing Gland 2Cr13
4 Stem 2Cr13 10 Bracket Q235
5 Stud 35CrMoVA 11 Pneumatic Actuator Aluminum Body
6 Nut 25      

Application Specification
1. Design and Manufacture: GB/T 12224
2. Face to Face Dimension: Manufacturer's Standard
3. Flange Dimension: JB/T 79.1, ANSI B16.5  DIN 2543, JIS B2020
4. Inspection and Test: GB/T 9092
5. Material Standard: GB/T 12229 for Carbon Steel, GB/T 12230 for Stainless Steel

Main External and connecting Dimensions
DN PN L D D1 C H n-d  
50 10 200 160 125 16 520 4-18  
65 220 180 145 18 595 4-18  
80 240 195 160 20 635 8-18  
100 280 215 180 20 630 8-18  
125 300 245 210 22 715 8-18  
150 320 280 240 24 840 8-23  
175 320 310 270 26 885 8-23  
200 350 335 295 26 1155 8-23  
250 400 405 350 30 1400 8-23  
300 450 460 400 30 1800 12-23  

 
Pneumatic Ceramic Double-Disc Gate Valve (GZT644TC)
Pneumatic Ceramic Double-Disc Gate Valve (GZT644TC)
 

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