2007年4月28日星期六

ball valves

Ball valve are the three different types of rotary valves used in industrial plants. They are widely used in fluid-handling systems for flow control. These types of rotary valves are suitable for corrosive applications. They are used in detergent, pharmaceutical, chemical, rubber, pulp and paper plants, water treatment systems, textile mills and food processing plants, In general, ball valves offer many advantages when contrasted with other valve types. They provide superior ease of operation and can maintain and regulate high volume, high pressure and high temperature flow. Most ball valves offer rugged construction providing for a long service life, and a comparably low cost. Additionally, the design of the regulating element allows the valve to function without the complications of side loads, typical of butterfly or globe valves, and the valve design permits inspection and repair of seats and seals without removing the valves’ body from the line.We are one of the biggest ball valves manufacturer in China. We supplies :Floating Ball Valve、Cast Steel Fixed Ball Valve、Forgen Steel Fixed Ball Valve etc;We can manufacture and supply ball valves according to your requirements,please contact us !

2007年4月27日星期五

Cast Steel Valve


Cast Steel Valve are generally used on line size over 2 when higher pressures and temperatures demand the use of carbon or alloy steel, cast steel valves are designed and manufactured to satisfy strict requirements in order to prevent external leakage and to meet fugitive emission requirements of most customers. Stuffing box finishes of 63 to 125 RMS, stem finished of 16 to 32 RMS control of staginess and concentricity of stems, and controlled diametrical clearances between stem and gland, stem and backseat, and gland and stuffing box, all combine to guarantee consistent performance of stem seals. Gasket surfaces between bodies and bonnets are strictly controlled to fines guarantee consistent seeing in gaskets areas.We can manufacture and supply Cast Steel Valves according to your requirementsplease contact us !