DF 系列 UHP 高流量隔膜密封阀用 Elgiloy® 密封成套件

316L VAR 不锈钢阀体; 工作压力可达 300 psig (20.6 bar); 1/4、3/8 和 1/2 in.；10 和 12 mm 端接

Features: Step-by-step identification procedure for threads and end connections.

此文件对世伟洛克公司生产用于光伏行业的不锈钢产品进行了规定。此文件必须与产品目录、技术公告及报告一起使用，这样产品信 息才完整。此文件的应用仅限于与介质接触的系统部件。

Features: This technical report provides data on Swagelok® DF series diaphragm valves. The report covers: P surface finish specifications; static particle counting; moisture analysis; hydrocarbon analysis; ionic cleanliness; lab cycle test data.

Scope: This document specificies guidelines used by Swagelok® Company for producing ultrahigh-purity (UHP) electropolished stainless steel products as well as ultrahigh-purity plastic products. This document must be used in conjunction with product catalogs, technical bulletins, and reports for complete product information.

Valve sizing often is described by the nominal size of the end connections, but a more important measure is the flow that the valve can provide. And determining flow through a valve can be simple.

如果必要的话使用散热器以防止过度加热内部元 件; 如果轨道焊接操作较好的话，可以不需要散热 设备; 确保阀门处于打开位置以在焊接过程中维持持续 的吹扫气流; 使用高质量的吹扫气体以保持清洁 并减少焊接污染.