We expect to work with all new clients covering every corner of the world and remaining old customers together to create a bright future!
Zhejiang PORO Valve Manufacturing Co., Ltd , established in 1997 with oversea’s investment, covered an area of 23186 square meters, is a leading manufacturer & sales in China. Gate valve, Globe valve, Check valve, Ball valve, Butterfly valve and slab gate valve etc. are our products range covered different materials of CS, LTCS, SS, DSS, ALLOY S etc. and standards of ANSI, DIN, BS, JIS, and GB etc., and especially we got national petent for the speicial butterfly valve which is triple-ecentric with 0 sealing leakage for both sealing sides. Surely, we also got approved certificates of API6D,API600,API607,ISO9001,ISO14001,CE, etc. Our products are greatly exported to all over the world such as ASEAN, Europe, South America, Middle East, Africa and so on.
Due to our unity and coordination’s work team, PORO effectively guarantees the product’s performance, quality and delivery, and has widely won the favor of customers.Today PORO valve has been widely used in domestic and international large-scale petroleum, chemical, electric power, iron and steel, shipbuilding, water treatment and other fields. We expect to work with all new clients covering every corner of the world and remaining old customers together to create a bright future!
PORO VALVE MANUFACTURING CO.,LTD strictly according to the requirement of ISO9001、API Q1、API 6D、EUROPEAN CE/PED，strictly control the quality in the processing of every product, and every product has its own serious number, which is in order to trace the whole process of the product quality and content to the requirement of the users.
Butterfly valve, a main produt of poro valve, is widely used in various industries both in regular services and special medium such as sea water. It becomes more and more popular because of its low weight, cost effictive and advantage of techinical aspect such as low torque compared with traditional valve types like ggc valve, ball valve. And it replaces them in many fields more and more.
Conventional Gate,Globe,Check Valve Conventional ggc valves are usually widely used in normal working conditions in many industries, also are main produts of poro. We can offer wide range of sizes（up to 48”）, ratings(up to 1500lb), and materials in different design standards.
Three-way ball valves have an L- or T-shaped hole through the middle. The different combinations of flow are shown in the figure. It is easy to see that a T valve can connect any pair of ports, or all three, together, but the 45 degree position which might disconnect all three leaves no margin for error. The L valve can connect the center port to either side port, or disconnect all three, but it cannot connect the side ports together.
There are five general body styles of ball valves: single body, three piece body, split body, top entry, and welded. The difference is based on how the pieces of the valve—especially the casing that contains the ball itself—are manufactured and assembled. The valve operation is the same in each case.