Principle of the float ball valve: This kind of ball valve has a floating ball supported by two valve seats. Under the medium pressure effect, a certain displacement can be generated by the ball itself so as to be pressed onto the valve seat seal ring at the outlet, guaranteeing tightness at the outlet.
Principle: This type of ball valve has a floating ball and two renewable seats, movable ball can touch the down stream seat tightly because of the pressure of up stream medium to ensure sealing reliable.
The float ball valve is mainly divided into such two structures as the single-body type and double-body type float ball valve structures
This type of floating mounted ball valve are mainly designed with one piece or two pieces body.
Technical Specifications
Design standard: API 608、BS 5351、GB/T 12237
Face to face standard: ASME B16.10、GB/T 12221
Flange ends: ASME B16.5、GB/T 9113
Fire safe design:API 6FA 、API 607 Pressure test:API 6D、API 598、GB/T 13927
Product Specifications
Body material: carbon steel, stainless steel, alloy steel
Nominal diameter:1/2"～6"（DN15~DN150）
Pressure range: Class150 - 2500
Working temperature: -196℃ - +200℃
Operation : wrench, worm gear, electric,
Operation : wrench, worm gear, electric,etc.
Design Features
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Application
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Simple structure with good tightness and small torque;
With a fully-welded valve body, full bore and the minimum flow resistance (zero actually);
Fire safe, anti-static and anti-blowout stem desjgn;
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Long distance pipe lines for petroleum, chemical industry, metallurgy, light industry, power station, urban construction water supply, as well as oil, gas and natural gas transmission and so on
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