A three piece forged hard sealed ball valve typically consists of three main parts: valve body, valve cover, and ball body. This design feature makes maintenance and repair relatively easy. Operators can separate these parts to inspect and maintain the interior of the valve without disassembling the entire valve. This reduces downtime and maintenance costs, and improves operational efficiency. The valve body made by forging can withstand greater pressure and have more stable performance. The metal seal can withstand high temperatures, and the connection methods mainly include threading, butt welding, and socket welding.
Performance characteristics
1. The ball and valve seat are sprayed with supersonic flame spraying technology, spraying superhard chromium carbide or tungsten carbide alloy on the sealing surface of the valve, so that the surface hardness of the ball and valve seat can reach up to Rockwell HRC65. Moreover, the thermal expansion coefficient of the coating and the ball is the same, and it will not peel off when the medium temperature changes greatly. We can also replace spraying materials according to customer requirements, including Cr based alloys, Ni based alloys, Babbitt alloys, ceramics, etc
2、球体和阀座采用先进的研磨机，再加上工业金刚石粉末一对一研磨，使密封面100%完美配合。
3、适用于高温、高压、防腐以及含有颗粒物、纤维物质的介质和粉尘、高粘度介质，有效的剪切和去除球体表面的任何颗粒和物质，对介质进行快速的切断和控制。4、超耐磨损、耐高温(90度-800度 )、耐冲刷、耐腐蚀( 盐腐蚀、酸腐蚀、碱腐蚀等各类腐蚀 )、耐高压(6.4Mpa-42.0Mpa)。
5、适用于石油、化工、石化、冶金、轻工、炼油、电厂、食品、医药、造纸、矿产等.6、适用于淡水、污水、海水、空气、蒸汽、食品、药品、化学制剂、各种油类酸碱类和盐类等。
standard specification
1. Design and production: GB/T 12237
2. Valve body thickness: GB/T 12224
3.NPT螺纹连接: ASME B1.20.1;G螺纹连接: GB/T 12716; RC螺纹连接: GB/T7306.2
4. Socket welding: ASME B16.11
5. Welding: ASME B16.25ASME B36.10M
6. Inspection and testing: API598
design code
1.手柄带锁装置，防止错误操作，更安全、可靠;
2.防吹出阀杆;
3.方便的操作;
4.根据API607标准，防火设计;
5.阀杆和球体之间有防静电装置;6.连接端:NPT螺纹、承插焊、对焊(阀体可加长)。
Three piece forged hard sealed ball valves are usually manufactured using forging technology, and stainless steel or other high-strength alloys are commonly used as materials. These materials have excellent mechanical properties and are particularly suitable for environments with high temperature, high pressure, and corrosive media. The forging process makes the material stronger and increases its durability, making it suitable for various harsh working conditions.
The design of the three piece forged hard seal ball valve is very engineer and operator friendly. It usually consists of three main parts: valve body, valve cover, and ball. This design feature makes maintenance and repair relatively easy. Operators can separate these parts to inspect and maintain the interior of the valve without disassembling the entire valve. This reduces downtime and maintenance costs, and improves operational efficiency.
The working principle of the three piece forged hard seal ball valve is relatively simple, but efficient. There is a sphere inside the valve, usually with a hole or channel, which can be rotated to control the flow of fluid. When the holes of the sphere align with the pipeline, fluid can flow freely. On the contrary, when the sphere rotates to the closed position, the channel will be blocked, stopping the flow of fluid. This design allows the valve to quickly respond to opening and closing commands while providing precise flow control.