2022年3月16日 · OS&Y valves are gate valves, meaning that the flow of water is controlled by the movement of a barrier, or gate. The gate moves perpendicularly to the water’s path. When it is down and pressed against components in the valve body called the valve seats, a seal is formed, and water cannot flow.

2023年6月19日 · 闸阀和截止阀应为OS&Y（外螺纹阀杆及阀轭）结构形式。 OS&Y 全称 Outside Screw and Yoke，旋转阀门手轮打开阀门时，阀杆会提升. OS&Y闸阀规格参数示例：ASME B16.10, API 602, ASTM A182-F304, TRIM.15-HF, CL150, BB, OS&Y. 与OS&Y相对应的还有IS&Y，IS&Y全称 Iutside Screw and Yoke，旋转阀门手轮打开阀门时，阀杆不会提升。 下面是OS&Y和IS&Y阀门内部构造图，左边是OS&Y闸阀，右边是IS&Y闸阀。 OS&Y 手轮旋转，阀 …

An OS&Y valve, also known as an Outside Screw and Yoke valve, is a type of valve commonly used in various industries for flow control applications. The term “OS&Y” refers to the design features of the valve, where the stem is located on the outside of the valve body and operates through a yoke mechanism.

OS & Y means ‘outside stem and yoke’ or ‘outside screw and yoke’, and it has this name because of its distinctive design features. In this article, we review the features of an OS & Y valve, its tamper switch, typical specifications, compare it to NRS valves, and highlight some applications.

2012年3月13日 · An OS&Y valve is the type of valve required by code for NYC water main service lines that provide fire protection. When installing a new water main for fire protection it is vitally important to use the correct main control valve inside the building.

What is an OS&Y Valve & how does it function? An OS&Y valve (outside screw & yoke) functions by opening and closing via a gate, which lowers both in and out of the valve. When the handle is turned clockwise the gate will close preventing any water from traveling through the valve.

As a preeminent authority in the valve manufacturing industry, our expertise and technical acumen underscore the indispensable role of Outside Screw and Yoke (OS&Y) valves in optimizing fire sprinkler systems. In essence, OS&Y valve are gate valves that regulate the flow of water in these systems, and their design is what sets them apart.

2024年12月18日 · OS&Y gate valves are widely used in fire sprinkler systems, hydrant systems, and standpipe systems. Their ability to clearly indicate whether the valve is open or closed makes them essential for safety and compliance. An OS&Y gate valve consists of several key components, each playing a specific role in its operation:

OS&Y valves, also known as Outside Screw and Yoke valves, are essential components in fire protection systems. These valves play a critical role in controlling the flow of water within sprinkler systems and other fire suppression equipment.

- OS&Y：指阀门的操作形式，OS&Y表示阀杆为外升式结构。 - CL150：指阀门的压力等级，CL150表示额定压力为150磅。 - RF：指阀门的连接方式，RF表示法兰连接。 - A216 WCB：指阀门材质，A216 WCB是一种碳钢材质标准。 - 13Cr/STL F6a：指阀门密封面材质，13Cr/STL F6a表示使用13Cr不锈钢和F6a钢作为密封面材料。 - DN80：指阀门的口径大小，DN80表示口径为80毫米。 综上所述，这组规格参数描述了一款DN80口径、CL150压力等级、碳钢材质、法 …