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Ceramic Double Disc Gate Valve

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Technical Parameters
Size
DN50 to DN300 (2" to 12")
Nominal pressure
1.0 to 1.6 MPa (ANSI Class: 150)
Applicable temperature
≤200℃ (≤392℉)
Materials
Ceramics

Other standards are available as per customers’ request, including ANSI, JIS, DIN, etc.


Main Features
  • Corrosion

    Resistance

    Johncera's advanced ceramics have very stable chemical properties for most acid-base media, performing excellent corrosion resistance.
  • High

    Strength

    Johncera adopts high-performance advanced ceramics as valve ball and lining materials — flange connection, three-stage structure design, forged steel shell, ensuring easy maintenance and high strength.
  • High

    Hardness

    Johncera's zirconia ceramics valve balls have hardness up to HRA88, second only to diamond.
  • Wear

    Resistance

    Advanced ceramics' ultra-high hardness allows Johncera's ceramic valves to operate against the erosion of solid particles in fluid flow. Also, the conveying medium will not be contaminated by the peeling material caused by scouring.
  • Zero

    Leakage

    Johncera's ceramic ball valves adopt a surface contact sealing structure between ball bodies and valve seats. The sealing surface is well polished with high roundness and accuracy. ANSI VI sealing level achieved.
  • Self-lubrication

    With precise ground surface between ball bodies and valve seats, Johncera's ceramic ball valves are self-lubricated in the On/Off process with slight resistance and smooth On/Off switch.
  • Low Torque

    Value

    Since Johncera's ceramic ball valves are self-lubricated, therefore they have low torque value and easy to switch.
  • Long

    Service Life

    Because of the abovementioned properties, Johncera's ceramic ball valves significantly extend service life and reduce maintenance rates.

Product Details

1、High strength

The support and opening and closing parts of the ceramic gate valve are made of metal, and the sealing pair is a precision-machined structural ceramic. The flat contact sealing form is used to make a straight stroke movement, with large shearing force and high strength. 


2、Easy to maintain
The ceramic gate valve adopts a three-stage structure, which is easy to install and disassemble. The internal cavity of the valve is designed with a purge function to prevent blockage.  


3、Good sealing

The sealing of the ceramic gate valve adopts a spring-compensated self-sealing structure, which can maintain the sealing performance for a long time.  


4、High cost performance
The ceramic gate valve has better performance than ordinary gate valves under dry powder conveying conditions without corrosion and cleanliness requirements, and its price is close to that of ordinary gate valves, with high cost performance.


Application areas:


Power plant

Ash removal system, feeding, fly ash transportation

Concentrator

Mineral powder material transportation

Cement plant

Powder conveying

Others

Other powder, dry powder conveying conditions without corrosion and cleanliness requirements


Applicable medium: slurry, pulverized coal, medium containing particulate matter. 

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