一、进口不锈钢内螺纹球阀概述

进口不锈钢内螺纹球阀（美国威盾VTON），Stainless steel thread ball valve，也叫丝扣球阀，不锈钢丝扣球阀，内螺纹一片式球阀，是指采用不锈钢304或者316材质，内螺纹连接的球阀，连接方式有G螺纹，NPT螺纹，PT螺纹。

美国威盾VTON内螺纹球阀PN16~PN63 内螺纹球阀适用于 PN1.0～4.0MPa，工作温度 -29～180℃（密封圈为增强聚四氟乙烯）或 -29～300℃（密封圈为对位聚苯）的各种管路上，用于截断或接通管路中的介质，选用不同的材质,可分别适用于水、蒸汽、油品、硝酸、醋酸等多种介质。

Stainless steel thread ball valve (VTON), also known as threaded ball valve or threaded ball valve, refers to a ball valve made of stainless steel 304 or 316 material with internal thread connection. The connection methods include G thread, NPT thread, and PT thread.

VTON internal thread ball valve PN16~PN63 internal thread ball valve is suitable for various pipelines with PN1.0~4.0MPa, working temperature of -29~180 ℃ (reinforced polytetrafluoroethylene sealing ring) or -29~300 ℃ (counterpoint polystyrene sealing ring). It is used to cut off or connect the medium in the pipeline, and different materials are selected. It can be used for various media such as water, steam, oil, nitric acid, acetic acid, etc.

二、进口不锈钢内螺纹球阀产品特点

1、内螺纹球阀阀体铸造采用美国威盾VTON的先进工艺，结构合理、造型美观。

2、内螺纹球阀阀座采用弹性密封结构，密封可靠，启闭轻松。

3、内螺纹球阀阀杆采用有倒密封的下装式结构，阀腔异常升压时，阀杆不会被冲击。

4、内螺纹球阀阀结构简单、密封性能好,而且在一定的公称通经范围内体积较小、重量轻、材料耗用少、安装尺寸小,并且驱动力矩小,操作简便、易实现快速启闭。

1. The casting of the internal threaded ball valve body adopts the advanced technology of American VTON, with a reasonable structure and beautiful appearance.

2. The internal threaded ball valve seat adopts an elastic sealing structure, which is reliable and easy to open and close.

3. The valve stem of the internal threaded ball valve adopts a bottom mounted structure with an inverted seal. When the valve chamber is abnormally pressurized, the valve stem will not be impacted.

4. The internal threaded ball valve has a simple structure, good sealing performance, small volume, light weight, low material consumption, small installation size within a certain nominal diameter range, and a small driving torque, making it easy to operate and achieve fast opening and closing.

三、进口不锈钢内螺纹球阀主要零件材料

四、进口不锈钢内螺纹球阀主要外形和连接尺寸