VCR接頭是真空連接徑向密封（Vacuum Coupling Radius Seal）前三個英文的縮寫，同時，VCR接頭也是金屬面密封街頭的代名詞，當(dāng)然不同品牌的金屬密封接頭的名稱也會不一樣。

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接頭早是用于航空行業(yè)的，現(xiàn)今較常用于半導(dǎo)體光電制造行業(yè)，那么今天小編主要想跟大家聊聊VCR接頭在采購時需要注意的事項。

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接頭它是一個整體，包括了本體、螺母、前卡套和后卡套。若我們采購的是一個LOK彎頭，那么它便可以直接使用了，不需要再另外采購什么螺母、前和后卡套除非你是作為備用部件。但VCR接頭就不一樣，例如你采購了一個UnionElbow，還需要另外訂購兩個墊、兩個接頭、兩個內(nèi)螺紋螺母，才能夠配合使用。

(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接頭的金屬墊片可分為無爪型和帶爪型，采購的時后我們要注明一下。

(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接頭的接頭種類有很多，如果按照長短可分為長型、短型；按焊接形式分為對焊、肩焊、承插焊；按與其配套使用的螺母可分為公型、母型。當(dāng)然每個廠家對不同的接頭叫法也不一樣，采購時要按所選品牌的樣本，標(biāo)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接頭的規(guī)格型號蠻多的，而且還不是成套供應(yīng)，采購時一定要寫清楚它的名稱、規(guī)格和材質(zhì)，寫上廠家的訂購號，以免弄錯了。

(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）實際上TUBE管有英制（如1/8"、1/4"、 3/8"、 3/4" 、1"）和公制（如3、8、15、20、25mm）這兩種都是指管外徑，英制較為常用。因此同TUBE配套的VCR接頭也有英制和公制之分，采購時要說明一下。

(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）對于一頭螺紋連接的VCR接頭，要區(qū)分管螺紋的類型，比較常見的有兩種：NPT（60°圓錐管螺紋，美標(biāo)產(chǎn)品常用）和PT（55°圓錐管螺紋，鍋內(nèi)常用，日本也用的較多）。不同類型的管螺紋混用，可能擰不到位，造成泄露或隱患；有的即便擰到位了，有可能以后拆不下來。

(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街頭中的墊片是一次性易耗品，經(jīng)常會因為保管不善丟失，或者施工錯誤需要更換，因此要多采購一些備用的墊片。

(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.

以上就是小編分享的一些有效針對我們在采購VCR接頭時注意事項，希望能對大家有所幫助。

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