Metallized Carbon Corporation has developed a range of carbon-graphite ball valve seats for use in valves designed to handle hot liquids or hot gases.
The ball valve seats are available in more than 150 proprietory grades and can be used in temperatures from approximately 350°F up to 800°F in oxidizing environments. They are also suitable for fire safe petroleum industry ball valves, which must operate freely after a simulated fire test in which the valve is heated to 1400-1800°F.
The ball valve seats are produced by shrink fitting a carbon-graphite ring into a metal retaining ring, which is available in Carpenter alloys, Hasteloy, Inconel, stainless steels, steel and titanium. After shrink-fitting, the carbon-graphite is pre-stressed in compression and exhibits the same coefficient of thermal expansion as the metal retaining ring. The concave face of the carbon graphite ring is polished to make a pressure tight fit with the ball, and the back face of the carbon-graphite is lapped flat to make a pressure tight fit with the valve housing
Regards
ANUP SHAH
Adroitt Flow Control Pvt Ltd
Mobile +91 9820501463
Email - anup@adroitt.net
Skype / GTalk - anupshah76
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