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Ceramic Butterfly Valves-BCD

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Technical Parameters
DN80 to DN300 (3" to 12")
Nominal pressure
1.0 to 1.6 MPa (ANSI Class: 150)
Applicable temperature
≤200℃ (≤392℉)

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

Main Features
  • Corrosion


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


    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


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


    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


    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


    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、Sealing surface is made of structural ceramics which are through arc surfaced contact machining. Compared with conventional butterfly valve, this valve has better wear resistance property and longer service life when used for media with particles.  

2、Adopting eccentric structure, it can reduce friction when valve is open or closed instantaneously.   

Application areas

Power plant

Desulfurization unit, Lime & lime slurry, gypsum, filtrate, etc.

Waste incineration

Desulfurization, lime slurry, HCl absorption tower, etc.


Boiler steam, sea water with particles, high strength particles and corrosive medium

Applicable medium: slurry, pulverized coal, sewage, sludge and other medium.

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