Q41H硬密封球阀, WCB阀体, PN16法兰连接.

The Q41H hard-seal ball valve is suitable for various pipelines of Class 150 to Class 2500 and PN16 to PN160, 用于切断或接通管道中的介质. Depending on the material selected, the hard-seal ball valve can be used for various media, including non-corrosive media, weakly corrosive media, 硝酸, 醋酸, 氧化介质, 尿素, ETC。, and is particularly suitable for harsh conditions such as media containing solid particles, 浆料, 煤粉, and ash. The hard-seal ball valve can be driven manually, by a worm gear, pneumatically, or electrically. Metal hard-seal ball valves generally use flange connections, but butt-welded connections are also possible.

产品名称: Hard Seal Ball Valve

产品型号: Q41H

公称直径: DN15～DN300
结构类型: 球形

公称压力: 1.6Mpa～6.4Mpa～16.0Mpa～42.0Mpa
连接方式: 内螺纹, 外螺纹, 法兰, 晶圆, 焊接, 压缩配件

适用温度: ≤550℃
驱动方式: 手动的, 蜗轮, 电的, 气动, 液压

阀体材质: 铸钢, 碳钢, 锻钢, 不锈钢
制造标准: 国标 (中国国家标准), 从 (德国标准), 应用程序编程接口 (美国标准), 美国国家标准协会 (美国标准)

适用媒体: 水, 油, 气体, 液体
制造商: Zhejiang Kozo Valve Co., 有限公司.

Seat Hardening Technology

Hard-seal ball valves utilize a completely metal-to-metal seal between the ball and seat. To ensure reliable sealing under various temperatures and pressures, various advanced ball and seat hardening technologies are employed to meet different user conditions and requirements. These include supersonic spraying, nickel-based spray welding, special surface hardening, and hard alloy spray welding. The surface hardness of the ball and seat can generally reach HRC60 or higher, with some reaching HRC74 or higher. The sealing surface material can withstand temperatures up to 540℃, with some reaching 980℃. The bonding strength of the metal hard-seal flange ball valve material can reach over 10000 PSI, and the sealing surface material also possesses excellent wear resistance and impact resistance. Hard-seal fixed ball valves are suitable for most harsh operating conditions.

Prevent the valve from swelling at high temperatures
Under high temperature conditions, thermal expansion can easily cause the ball and valve seat to swell, causing the valve to fail to open. The hard-sealed ball valve adopts a disc spring or spring-loaded patented sealing structure. The thermal expansion of parts at high temperatures can be absorbed by the disc spring or spring, so it can ensure that the valve will not be swollen to death at high temperatures and can be opened and closed flexibly at high temperatures.
优良的密封性能
Using a unique ball grinding process, through the rotation of the ball and grinding equipment in different directions in space, the surface of the ball reaches extremely high roundness and smoothness, and the sealing performance of the valve fully meets or exceeds the standard requirements.
Complete fireproof structural design
The sealing surface of the valve adopts a metal-to-metal sealing structure, the filler adopts flexible graphite, and the gasket adopts a stainless steel + flexible graphite structure. The valve therefore ensures reliable sealing even in fire situations.
Natural anti-static structural design
The valve body, 阀座, ball and other metal parts of the metal hard-sealed ball valve are in close contact, naturally forming an electrostatic channel. 所以, metal hard-sealed ball valves do not need to be equipped with special anti-static devices.
Double blocking and bleed function
Hard seal fixed ball valves generally adopt a ball front seat sealing structure. The two valve seats of the metal hard-sealed fixed ball valve can independently cut off the medium at the inlet and outlet ends, achieving a double blocking function. When the ball valve is closed, even if both ends of the valve inlet and outlet are pressurized at the same time, the middle cavity of the valve and the channels at both ends can be blocked from each other, and the remaining medium in the middle cavity can be discharged through the relief valve.
主要零件材质主要零件材质
阀体
身体 304 ZG1Cr18Ni9Ti CF8 CF3 ZG1Cr18Ni12Mo2Ti CF8M CF3M
球杆
球杆 304 1Cr18Ni9Ti 304 304L 1Cr18Ni12Mo2Ti 316 316L
阀座
座椅-29℃～300℃(对聚物PPL)
-29℃～550℃(金属)
垫片
垫片不锈钢/柔性石墨齿形垫片
阀杆座
阀杆座不锈钢/柔性石墨
填料
填料增强柔性石墨
填料压盖
压盖 1Cr18Ni9Ti 304 304L 1Cr18Ni12Mo2Ti 316 316L
温度
温度-29℃～300℃(对聚物PPL)
-29℃～550℃(金属硬密封)
中等的
介质水蒸气油气
水蒸汽
Oil goods Mud, sand, 泥浆, slurry Strong oxidizing medium
强氧化介质醋酸尿素