Chemical description of the valve: chemical valve is a kind of important industrial pipeline flow control on attachment, facing the complex industrial systems and valve variety of working conditions, want to choose suitable valves, pipeline system and understand the performance of the valve, should grasp two valve steps and basis of the three should follow the principle of choosing valves for petroleum, chemical industry. Chemical valve not only applicable scope is wide, and the dosage, certainly higher than ordinary chemical valve valve requirements. Chemical valve generally use media are relatively easy to corrosion, simple chlor-alkali industry, to large petrochemical enterprises, there are high temperature, high pressure, corrosion resistance, abrasion resistance, temperature, pressure difference is very big. Facing to this higher risk of valve, shall be in strict accordance with the chemical industry in the process of selecting and using standard execution. Taiwan company is a professional chemical valve manufacturer, manufacturing in strict accordance with the standard of chemical manufacturing. Chemical valve selection principle: chemical industry generally choose port for straight through the valve, the flow resistance is small, usually choose as a globe valve and open media use, easy to adjust flow valve as a control flow, plug valve and ball valve is suitable for reversing shunt, shut down along the sealing surface of sliding with wiping valves are best suited for medium with suspended particles. Common chemical Industrial Valves ball valve, gate valve, globe valve, safety valve, plug valve, check valve, etc. Chemical valve mainstream media with chemicals, acid and alkali corrosive medium containing various, minister for chemical industry valve materials manufacturer leading 304 l and 316 ordinary medium choose 304 as the dominant material, combination of many chemical fluid with alloy steel or fluorine-butterfly valves. Chemical valve types: opening and closing type: cut off or communication pipe fluid flow; External regulation: adjusting flow rate, flow velocity; The throttle type: after making the flow through the Industrial Valves produces a lot of pressure drop; The other type: a. Automatic opening and closing b. To maintain a certain pressure c. Vapor barrier drainage. Chemical valve before use notice: (1) body inside and outside surfaces with and without sand holes, cracks and other defects; (2) the seat and body joint is rigid, it fits the valve core and valve seat, sealing surface with and without defects; (3) the valve stem and valve core connection is flexible and reliable, the valve stem is bent, thread is damaged; Steel flange chemical industry standard: chemical engineering construction technical specifications' HGJ44 - HGJ68 - 1999 】 Chemical standards; The European system' HG20592- HG20605 - 1997 】 Chemical standards; The European system' HG20613 - HG20623 - 1997 】
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Shenzhen Mech Valve Trading Co., Ltd. intends to make enough profit to generate a fair return for our investors and to finance continued growth and development in resilient seated gate valve.
Our company specializes in manufacturing rising stem gate valve mainly os gate valve.