What are the specific systems of the valve electric device

閥門電動執(zhí)行器標(biāo)準(zhǔn)體系是指將全行業(yè)面對市場需求和針對行業(yè)企業(yè)產(chǎn)品生產(chǎn)及新產(chǎn)品開發(fā)中，有利于制造與使用雙方所需全部標(biāo)準(zhǔn)的綜合，使各項標(biāo)準(zhǔn)之間在適用對象、范圍和內(nèi)容等方面相互關(guān)聯(lián)、相互協(xié)調(diào)、相互制約。標(biāo)準(zhǔn)體系是合理覆蓋全行業(yè)生產(chǎn)和技術(shù)的科學(xué)有機(jī)體，同時也要考慮到與各相關(guān)領(lǐng)域的銜接與配合。

The valve electric device standard system refers to when the whole industry facing the demand of the market, for the production of enterprises and the development of new products in the industry, in this way can benefit all the standards required for the manufacture and use of both parties. To interrelate, coordinate and restrict each other in the applicable objects, scope and content. The standard system is a scientific organism that reasonably covers the entire industry's production and technology. It also needs to consider the convergence and cooperation with related fields.

目前，我國閥門電動執(zhí)行器的標(biāo)準(zhǔn)體系主要由五個部分組成，體系結(jié)構(gòu)框架如下：

At present, the standard system of valve electric devices in China is mainly composed of five parts. The frame of the system structure is as follows:

部分是方法標(biāo)準(zhǔn)，包括性能試驗、壽命試驗以及探傷試驗等標(biāo)準(zhǔn)。

The first part is the method standard, including the performance test, life test and flaw detection test.

第二部分是產(chǎn)品標(biāo)準(zhǔn)。基本上是按閥門電動執(zhí)行器結(jié)構(gòu)分類而確定的，分為國家標(biāo)準(zhǔn)和行業(yè)標(biāo)準(zhǔn)。包括閘閥、截止閥、球閥、旋塞閥、蝶閥、隔膜閥、疏水閥、特種閥門電動執(zhí)行器、驅(qū)動裝置等標(biāo)準(zhǔn)。

The second part is the product standard. Basically, it is determined according to the classification of valve electric device structure, and is divided into national standards and industry standards. Including gate valve, globe valve, ball valve, plug valve, butterfly valve, diaphragm valve, steam trap, special valve electric device, drive device and other standards.

第三部分是零部件標(biāo)準(zhǔn)。為產(chǎn)品標(biāo)準(zhǔn)配套使用的零部件標(biāo)準(zhǔn)，以行業(yè)標(biāo)準(zhǔn)為主;包括閥桿螺母、填料、填料壓蓋等零部件。

The third part is the part standard. The standard of parts and components which used for supporting the product standards is based on industry standards; it includes stem nuts, packings, packing glands and other parts.

第四部分是基礎(chǔ)標(biāo)準(zhǔn)，主要適用于各工業(yè)領(lǐng)域用閥門電動執(zhí)行器，以國家標(biāo)準(zhǔn)為主。包括術(shù)語、標(biāo)志、結(jié)構(gòu)長度、型號編制等標(biāo)準(zhǔn)。
The fourth part is the basic standard, which is mainly applicable to valve electric devices in various industrial fields, based on national standards. Including terms, signs, structure length, model preparation and other standards.

第五部分是材料標(biāo)準(zhǔn)，包括鋼制材料、鐵制材料和有色金屬等材料標(biāo)準(zhǔn)。
The fifth part is the material standards, including steel materials, iron materials and nonferrous metal and other materials standards.