英国斯派莎克DCV3止回阀英文版介绍：

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Spirax Sarco provides various forms of non-return valve , which can effectively prevent the backflow of fluid pipes . Easy to install and maintain .

Brief introduction

    DCV2 and DCV3 disc flange on the folder for the installation of check valves , can be widely used in process piping , hot water systems, steam and condensate systems in a variety of fluids , connection dimensions comply with EN558 Part1, Series49.

Standard products for the metal seat for steam systems. When used in the oil , air, gas , and water valve seat can be selected for other materials .

Owner: Wafer Check Valve is not suitable for severe pulsating occasions, such as compressors.

   DCV series check valves compact structure , easy to install. Can be installed in vertical or horizontal pipe or inclined pipelines , simply two flanges on the folder to install.

    DCV check valve for steam and a variety of liquids, gases and other industrial systems , and provides various options depending on the application :

Seat options:

Metal seat (Metal): - suitable for steam or other high temperature fluid systems .

Temperature range -200 ℃ ~ 400 ℃.

Rubber seat (Viton): - applies to oil and gas systems , to ensure a good seal .

Temperature range -15 ℃ ~ 250 ℃.

EPDM seat (EPDM): - for water systems.

Temperature range -50 ℃ ~ 150 ℃

Spring options:

Standard spring - with a dry steam, water and many other industrial fluid system .

Nickel-chromium alloy spring - for high temperature systems.

Strong spring - for boiler feedwater system .

No springs - for low flow pressure loss system . Only for vertically upward flow in the pipeline .

英国斯派莎克DCV3止回阀中文版介绍：

DCV2和DCV3为碟片式法兰对夹安装止回阀，可广泛应用于过程管道、热水系统、蒸汽和冷凝水等系统中的各种流体，连接尺寸符合EN558  Part1，Series49。

标准产品为金属阀座，用于蒸汽系统。当用于油、空气、气体和水系统时可以选用其他材料的阀座。

主：对夹式止回阀不适合用于有严重脉动的场合，比如压缩机。

   DCV系列止回阀结构紧凑，安装简便。可安装在垂直或水平管道或倾斜管道，只需简单的两片法兰对夹安装即可。

    DCV止回阀可用于蒸汽和各种液体、气体等工业系统中，并可根据实际应用提供各种选择:

阀座选择:

金属阀座(Metal):-适用于蒸汽或其它高温流体系统。

温度范围 -200℃~400℃。

橡胶阀座(Viton):-适用于油及气体系统，可确保良好密封。

温度范围 -15℃~250℃。

三元乙丙阀座(EPDM):-适用于水系统。

温度范围 -50℃~150℃

弹簧选择:

标准弹簧 - 用干蒸汽、水及其它多种工业流体系统中。

镍铬合金弹簧 - 用于高温系统。

特强弹簧 - 用于锅炉给水系统。

无弹簧 - 用于低流动压损系统。仅用于流向垂直向上的管道中。