英國斯派莎克DCV3對夾式不銹鋼止回閥中文版介紹：
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：wangbo@spiraxsarcocn.com
DCV2和DCV3為碟片式法蘭對夾安裝止回閥，可廣泛應(yīng)用于過程管道、熱水系統(tǒng)、蒸汽和冷凝水等系統(tǒng)中的各種流體，連接尺寸符合EN558 Part1，Series49。
英國斯派莎克DCV3對夾式不銹鋼止回閥標(biāo)準(zhǔn)產(chǎn)品為金屬閥座，用于蒸汽系統(tǒng)。當(dāng)用于油、空氣、氣體和水系統(tǒng)時可以選用其他材料的閥座。
主：對夾式止回閥不適合用于有嚴(yán)重脈動的場合，比如壓縮機(jī)。
DCV系列止回閥結(jié)構(gòu)緊湊，安裝簡便。可安裝在垂直或水平管道或傾斜管道，只需簡單的兩片法蘭對夾安裝即可。
DCV止回閥可用于蒸汽和各種液體、氣體等工業(yè)系統(tǒng)中，并可根據(jù)實(shí)際應(yīng)用提供各種選擇:
閥座選擇:
金屬閥座(Metal):-適用于蒸汽或其它高溫流體系統(tǒng)。
溫度范圍 -200℃~400℃。
橡膠閥座(Viton):-適用于油及氣體系統(tǒng)，可確保良好密封。
溫度范圍 -15℃~250℃。
三元乙丙閥座(EPDM):-適用于水系統(tǒng)。
溫度范圍 -50℃~150℃
彈簧選擇:
標(biāo)準(zhǔn)彈簧 - 用干蒸汽、水及其它多種工業(yè)流體系統(tǒng)中。
鎳鉻合金彈簧 - 用于高溫系統(tǒng)。
特強(qiáng)彈簧 - 用于鍋爐給水系統(tǒng)。
無彈簧 - 用于低流動壓損系統(tǒng)。僅用于流向垂直向上的管道中。
英文版介紹：
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 .
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