如何订购阀门？
How to Order Valves?

如何指定和订购正确的阀门？
How to Specify and Order the Correct Valves

　　我们希望能够帮助您针对各种各样的管道环境选择正确的阀门。我们为您提供品种丰富的阀门供您选择。这些阀门在本网战中都有详细的介绍。
　　This catalog has been published to assist you in choosing the correct valve for a vast number of piping conditions. The Aloyco product line makes available to you a very broad choice of valves. These valves are described in this catalog.

　　在选择最适合您的用途的阀门时应该小心谨慎。为了避免含糊不清，应该对每一个阀门做出精确的规定。在询价或订购时，应该对所需要的阀门做出全面、适当的说明。
　　Care should be taken to select the most suitable valves for your service(s). Exact specification of each valve should be made to avoid possible ambiguity. When requesting quotations and/or ordering the product a fully adequate description should be made.

选择阀门通径
Selecting the Valve Size

　　必须确定与阀门连接的管道的公称通径。
　　Nominal size of the pipeline into which the valve will be placed must be determined.

阀门材料
Valve Material

　　在决定正确的阀门材料时，应该考虑下列因素：
　　The following facts should be considered in determining the correct valve material:

阀门类别
Type of Valve

　　阀门的控制功能是什么？每种阀门结构都是用于发挥某种功能。不要指望一种阀门能够担当整个管道系统内的所有功能。
　　What is the control function of the valve? Each valve configuration has been developed to perform certain control functions. Do not expect one type of valve to perform all the valving jobs in a system.

压力-温度额定值
Pressure-Temperature Ratings

　　为了满足实际需要，请特别注意所需阀门的压力-温度额定值。要特别注意密封材料和衬垫材料，这些材料相当程度上决定了阀门的压力-温度额定值。根据实际需要指定密封材料和沉淀材料，以满足或优于实际需求。
　　Please pay careful attention that the pressure-temperature ratings of a particular valve are in keeping with the requirements of the service. Pay especially careful attention to the packing and gasket materials as this may limit the rating as is the case with PTFE used as the standard in Aloyco valves. Specify alternative packing and/or gasket materials as necessary to meet or exceed your service requirements.

阀门与连接方式
Valve and Connections

　　管道系统的完整性，未来的日常维护，防腐因素，现场装配，重量和安全性等等因素都是决定了阀门与管道连接方式所应该考虑的因素。
　　Considerations as to pipeline integrity, future maintenance, corrosion factors, field assembly, weight and safety should be given in determining the method of connecting the valve in the pipeline.

运行方式或操作方法
Method of Operation

　　根据阀门种类、大小、压力、温度、安装环境等因素选择适当的运行方式或操作方法。
The means by which the valve is operated as supplied are shown for the valves in this catalog. Many optional operating devices are regularly supplied by Aloyco.

阀门的订购
Ordering the Valve

　　订购阀门时，请提供下列数据，避免不必要的反复和延误，确保所购买的阀门确实是自己所需要的阀门。
　　Please state the following information when ordering a valve in order to avoid unnecessary delays and to insure we supply you with the valve you have requested.