J44W法兰角式截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，（通用名称：暗杆），也有升降旋转杆式，（通用名称：明杆）截止阀是指关闭件（阀瓣）沿阀座中心线移动的阀门。根据阀瓣的这种移动形式，阀座通口的变化是与阀瓣行程成正比例关系。由于该类阀门的阀杆开启或关闭行程相对较短，而且具有非常稳定的切断功能，又由于阀座通口的变化与阀瓣的行程成正比例关系，非常适合于对流量的调节。因此法兰角式截止阀非常适合作为切断或调节以及节流用。

J44W法兰角式截止阀性能范围:

法兰角式截止阀

法兰角式截止阀是一种进出口通道成90°直角、阀瓣与阀座密封面与水平面呈一定角度的特殊截止阀。它通过法兰与管道连接，结合了角式阀体的流动特性与法兰连接的稳固性，适用于流向改变和空间受限的工况。

法兰角式截止阀核心特点：

角式阀体设计：流体在阀内实现90°的方向改变，减少了不必要的弯头管件，降低了管道阻力和应力，简化了管道布局。

法兰连接：阀体两端带有标准法兰，通过螺栓与管道法兰紧固。连接强度高，密封稳定，便于拆卸和维护，适用于中高压工况。

流阻低于直通式：由于流道直接转弯，相比直通式截止阀，其对流体的阻碍更小，压力损失有所降低。

法兰角式截止阀自排空能力：当介质为液体时，阀门关闭后阀腔内不易积存液体，便于排空和防止冻结，尤其适合蒸汽和易结晶介质。

密封性好：继承了截止阀密封面不易磨损、密封性能好的优点。

法兰角式截止阀主要应用领域：

蒸汽系统（锅炉蒸汽出口、蒸汽减压站、疏水阀前）

易结晶、高粘度及含颗粒介质管道

炼油、化工装置中需要改变流向的工艺管道

火力发电厂汽水系统

法兰角式截止阀法兰角式截止阀产品名称：

中文： 法兰角式截止阀

英文： Flanged Angle Globe Valve 或 Flanged Pattern Angle Valve

Flanged Angle Globe Valve - Product Overview

A Flanged Angle Globe Valve is a specialized type of globe valve with an inlet outlet port oriented at a 90-degree angle to each other. The disc seat are designed to align with this flow path. It utilizes flanged ends for connection, combining the benefits of the angle pattern for flow direction change with the strength reliability of a flanged joint.

Key Features:

Angle Body Design: The fluid changes direction by 90° within the valve body itself, eliminating the need for an additional pipe elbow. This reduces system pressure drop, minimizes pipe stress, simplifies piping layout.

Flanged Connection: Standard flanges on both ends allow for a robust, leak-proof connection to the piping via bolts. This facilitates easy disassembly for maintenance is suitable for medium to high-pressure services.

Lower Flow Resistance: Compared to a standard straight-through (T-pattern) globe valve, the angle design offers a more streamlined path for the changing flow, resulting in reduced flow resistance pressure drop.

Self-Draining Capability: When closed, the valve cavity does trap liquid, making it ideal for steam services (prevents water hammer) for handling fluids that may crystallize solidify.

Excellent Shut-Off: Inherits the reliable, tight sealing capability characteristic of globe valves, with minimal wear on the seat disc.

Primary Applications:

Steam systems (e.g., boiler steam outlet, pressure reducing stations, upstream of steam traps)

Pipelines handling crystallizing, viscous, slurry media

Process piping in refineries chemical plants a flow direction change is required

Power plant feedwater steam systems

关键术语：

角式: Angle Pattern

自排空/自排水: Self-draining

流阻: Flow Resistance / Pressure Drop

阀腔: Body Cavity