J23W面板直通截止阀

J23W面板直通截止阀是一种符合中国国家标准（JB/T）的外螺纹连接、无填料函结构的直通式截止阀。其型号“J23W”具有特定含义：J=截止阀，2=外螺纹连接，3=面板/直通式，W=阀体密封面由阀体材料直接加工（无密封圈）。它通常直接安装在设备、面板或管路的接口上，结构紧凑，启闭迅速。

J23W面板直通截止阀主要特点：

面板式安装： 阀体设计有安装耳或螺纹，可直接固定在控制面板、设备面板或支架上，安装简便，节省空间。

外螺纹连接： 阀门的进出口均为外螺纹（通常是管螺纹，如Rc/NPT），便于与接头或内螺纹管道连接。

无填料函设计： 采用阀瓣与阀体直接密封的结构，省略了传统的填料函（Packing Box），避免了填料磨损导致的泄漏，结构更简单紧凑。

密封面材质： 密封面由阀体材料直接加工（如不锈钢阀体则密封面为不锈钢），耐磨性好，但密封等级相对较低（通常用于中低压）。

启闭迅速： 手轮旋转圈数少，开关速度快。

流阻较低： 直通式流道设计，流体阻力相对于直角截止阀较小。

J23W面板直通截止阀应用领域：

广泛应用于仪表测量管路、取样系统、气动液压控制系统、设备冷却/润滑管路等中低压场合，作为仪表阀、取样阀或排气排污阀使用。

J23W面板直通截止阀主要设计标准：

J23W面板直通截止阀设计与制造： JB/T 7747《针形截止阀》

J23W面板直通截止阀螺纹标准： GB/T 7306 (55°密封管螺纹) 或 ANSI/ASME B1.20.1 (NPT螺纹)

J23W面板直通截止阀检验与测试： 相关企业标准或JB标准

J23W Panel Mounted Straight-Way Stop Valve Product Overview

Product Definition:

The J23W Panel Mounted Straight-Way Stop Valve is a type of stop valve conforming to Chinese National Standards (JB/T). It features external thread connections a packless (no stuffing box) design. The model code "J23W" has specific meanings: J = Stop Valve, 2 = External Thread Connection, 3 = Panel Mounted / Straight-Way, W = The sealing surface is directly made the body material (no seal ring). It is typically installed directly on the interfaces of equipment, panels, pipelines, offering a compact structure quick operation.

Key Features:

Panel Mounting: The valve body is designed with mounting lugs threads, allowing it to be directly fixed onto control panels, equipment panels, brackets. This facilitates easy installation saves space.

External Thread Connection: Both the inlet outlet ports have external threads (typically pipe threads, such as Rc/NPT), enabling easy connection to fittings internal threaded pipes.

Packless Design: Utilizes a structure the disc seals directly against the body, omitting the traditional stuffing box. This eliminates leakage caused by packing wear results in a simpler, more compact design.

Sealing Surface Material: The sealing surfaces are directly machined the body material (e.g., stainless steel body provides stainless steel seats). This offers good wear resistance, but the sealing class is relatively lower (typically used for medium low pressures).

Quick Operation: The handwheel requires fewer turns to open close, enabling rapid switching.

Low Flow Resistance: The straight-way flow path design offers lower fluid resistance compared to angle pattern stop valves.

Application Fields:

Widely used in medium low-pressure applications such as instrument measurement lines, sampling systems, pneumatic hydraulic control systems, equipment cooling/lubrication lines. It serves as an instrument valve, sampling valve, vent/drain valve.

Main Design Standards:

Design & Manufacture: JB/T 7747 "Needle Stop Valves"

Thread Standards: GB/T 7306 (55° Sealed Pipe Threads) ANSI/ASME B1.20.1 (NPT Threads)

Inspection & Testing: Relevant enterprise standards JB standards