VCR接头是真空连接径向密封（Vacuum Coupling Radius Seal）前三个英文的缩写，同时，VCR接头也是金属面密封街头的代名词，当然不同品牌的金属密封接头的名称也会不一样。

VCR connector is the abbreviation of the first three English words of Vacuum Coupling Radius Seal. At the same time, VCR connector is also a synonym of [meta]l surface Seal street. Of course, different brands of [meta]l Seal connector will have different names.

VCR接头早是用于航空行业的，现今较常用于半导体光电制造行业，那么今天小编主要想跟大家聊聊VCR接头在采购时需要注意的事项。

VCR connector was first used in the aviation industry, now more often used in semiconductor photoelectric manufacturing industry, so today small make up mainly want to talk with you about the VCR connector in the procurement need to pay attention to matters.

（1）LOK接头它是一个整体，包括了本体、螺母、前卡套和后卡套。若我们采购的是一个LOK弯头，那么它便可以直接使用了，不需要再另外采购什么螺母、前和后卡套除非你是作为备用部件。但VCR接头就不一样，例如你采购了一个UnionElbow，还需要另外订购两个垫、两个接头、两个内螺纹螺母，才能够配合使用。

(1) LOK connector it is a whole, including the [body], nut, front clamp sleeve and rear clamp sleeve. If we purchase a LOK elbow, then it can be used directly and there is no need to purchase additional nuts, front and rear clips unless you are using them as spare parts. However, the VCR connector is different. For example, if you purchased a UnionElbow, you also need to order two more cushions, two connectors and two nuts with internal thread, so that they can be used together.

（2）VCR接头的金属垫片可分为无爪型和带爪型，采购的时后我们要注明一下。

(2) the [meta]l gaskets of the VCR joint can be divided into non-claw type and claw type, we need to specify when we purchase.

（3）VCR接头的接头种类有很多，如果按照长短可分为长型、短型；按焊接形式分为对焊、肩焊、承插焊；按与其配套使用的螺母可分为公型、母型。当然每个厂家对不同的接头叫法也不一样，采购时要按所选品牌的样本，标注清楚。

(3) there are many types of VCR joints, which can be divided into long type and short type according to the length; According to the welding form is divided into butt welding, shoulder welding, socket welding; According to the matching nut can be divided into male type, female type. Of course, each manufacturer of different joint name is not the same, when the purchase of the selected brand samples, clearly marked.

（4）VCR接头的规格型号蛮多的，而且还不是成套供应，采购时一定要写清楚它的名称、规格和材质，写上厂家的订购号，以免弄错了。

(4) there are many specifications and models of VCR connector, and it is not a complete set of supply. Please write clearly its name, specification and material when purchasing. It is better to write down the manufacturer's order number, so as not to make mistakes.

（5）实际上TUBE管有英制（如1/8"、1/4"、 3/8"、 3/4" 、1"）和公制（如3、8、15、20、25mm）这两种都是指管外径，英制较为常用。因此同TUBE配套的VCR接头也有英制和公制之分，采购时要说明一下。

(5) actually, TUBE is in English system (e.g. 1/8", 1/4", 3/8", 3/4", 1") and metric system (e.g. 3, 8, 15, 20, 25mm). Therefore, there are also British and metric VCR joints matching the TUBE, which should be explained when purchasing.

（6）对于一头螺纹连接的VCR接头，要区分管螺纹的类型，比较常见的有两种：NPT（60°圆锥管螺纹，美标产品常用）和PT（55°圆锥管螺纹，锅内常用，日本也用的较多）。不同类型的管螺纹混用，可能拧不到位，造成泄露或隐患；有的即便拧到位了，有可能以后拆不下来。

(6) for a threaded connection joints, a VCR to district in charge of the thread type, there are two common: the NPT (60 ° taper pipe threads, commonly used products) and PT (55 ° taper pipe threads, the pot is commonly used, Japan is also more). Different types of pipe threads mixed, may not screw in place, causing leakage or hidden dangers; Even if some screw in place, it may not be removed later.

（7）VCR街头中的垫片是一次性易耗品，经常会因为保管不善丢失，或者施工错误需要更换，因此要多采购一些备用的垫片。

(7) the gaskets in the streets of VCR are disposable and consumable goods, which are often lost due to improper storage or construction errors and need to be replaced. Therefore, more spare gaskets should be purchased.

以上就是小编分享的一些有效针对我们在采购VCR接头时注意事项，希望能对大家有所帮助。

The above is the small make up to share some effective for us in the procurement of VCR connector notes, hope to help you.