一、进口内螺纹三通球阀概述

进口内螺纹三通球阀（美国威盾VTON），Internal thread three-way ball valve，丝扣三通球阀，丝扣不锈钢三通球阀，内螺纹T型三通球阀，内螺纹L型三通球阀，是指采用内螺纹连接，不锈钢材质，口径DN3-50的，有三个通孔的球阀。

内螺纹三通球阀在管道上不仅可灵活控制介质的合流、分流、及流向的切换。适宜做开关、切断阀使用，它的发展已将三通三片式球阀设计成使它具有节流和控制流量之用。密封面材料广泛使用各种塑料，密封性好，能实现完全密封。三通三片式球阀是我们生活中一个比较重要的产品。

Internal thread three-way ball valve (VTON, USA), threaded three-way ball valve, threaded stainless steel three-way ball valve, threaded T-shaped three-way ball valve, and threaded L-shaped three-way ball valve refer to ball valves with internal thread connection, stainless steel material, diameter DN3-50, and three through holes.

The internal threaded three-way ball valve can not only flexibly control the convergence, diversion, and flow direction switching of the medium on the pipeline. Suitable for use as switches and shut-off valves, its development has designed three-way and three piece ball valves to provide throttling and flow control functions. The sealing surface material is widely used with various plastics, which have good sealing performance and can achieve complete sealing. Three way three piece ball valve is a relatively important product in our daily life.

二、进口内螺纹三通球阀结构分析

进口内螺纹三通球阀是一种能对介质流向进行切换以及对介质进行分流或混合的阀门，三通球阀分为L型和T型，L型三通球阀适用于介质流向的切换，能使相互垂直的两个通道连通。T型三通球阀适用于介质的分流、合流或流向切换，T型孔道可以使三个通道互相连通或使其中两个通道连通，三通球阀一般采用两个阀座结构，亦可根据用户要求采用四座结构。

Internal thread three-way ball valve is a type of valve that can switch the flow direction of the medium and separate or mix the medium. The three-way ball valve is divided into L-type and T-type. L-type three-way ball valve is suitable for switching the flow direction of the medium and can connect two perpendicular channels. The T-shaped three-way ball valve is suitable for the diversion, merging, or flow direction switching of media. The T-shaped hole can connect three channels to each other or two of them. The three-way ball valve generally adopts a two seat structure, and can also adopt a four seat structure according to user requirements.

三、进口内螺纹三通球阀产品特点

1、结构紧凑、启闭迅速、流道畅通、流体阻力小。

2、密封性能好，利用四面阀座材料聚四氟乙烯弹性变形无泄漏密封。

3、一阀多用，任一通口可用作入口而无泄漏，三通既可制成L型通口，也可制成T型通口。

四、进口内螺纹三通球阀主要零件材料