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止回阀

型号:

发布日期:05-28

产品详情

    止回阀是指启闭件为圆形阀瓣并靠自身重量及介质压力产生动作来阻断介质倒流的一种阀门。属自动阀类,又称逆止阀、单向阀、回流阀或隔离阀。阀瓣运动方式分为升降式和旋启式。

    止回阀可用于给其中的压力可能升至超过系统压的辅助系统提供补给的管路上。止回阀主要可分为旋启式止回阀(依重心旋转)与升降式止回阀(沿轴线移动)。

    止回阀这种类型的阀门的作用是只允许介质向一个方向流动,而且阻止反方向流动。通常这种阀门是自动工作的,在一个方向流动的流体压力作用下,阀瓣打开;流体反方向流动时,由流体压力和阀瓣的自重合阀瓣作用于阀座,从而切断流动。


Product Details

     Check valve is a valve in which the opening and closing member is a circular flap and acts on its own weight and medium pressure to block the flow of the medium. It is an automatic valve, also known as a check valve, check valve, return valve or isolation valve. The flap motion mode is divided into lift type and swing type.

     The check valve can be used to supply a line in which the pressure may rise to an auxiliary system that exceeds the system pressure. The check valve can be mainly divided into a swing type check valve (rotation according to the center of gravity) and a lift check valve (moving along the axis).

     Check valves the role of this type of valve is to allow only the medium to flow in one direction and to prevent flow in the opposite direction. Usually, the valve is automatically operated, and the valve flap is opened by the fluid pressure flowing in one direction; when the fluid flows in the opposite direction, the fluid pressure and the self-reclosing valve flap of the valve disc act on the valve seat, thereby cutting off the flow.




技术指标                                       Technical indicators

1.口径:                                        1.size:

锻造:2"-32"                                 forging: 2"-32"

铸造:2"-64"                                 casting: 2"-64"

2.压力:150LB-4500LB                  2. Pressure: 150LB-4500LB                                                                                   

3.阀体材质:                                  3. Body material   

碳素钢   -50℃-425℃                     Carbon steel    -50℃-425℃

合金钢   -50℃-610℃                      Alloy steel     -50℃-610℃

不锈钢   -50℃-700℃                      Stainless steel -50℃-700℃

 

止回阀设计特点:                          Check valves Design features:

l 中腔压力自密封                             ●Cavity pressure self sealing

l 内置式悬吊阀瓣                             ●Seal the secondary reduce expenditure technology

l 可选择旁路配置                             ●Can choose to bypass configuration

l 密封硬质合金                                 ●Seal hard alloy

 

应用范围:                                              Range of application

阀门已广泛应用于                                    valve has been

石油、化工、电力、冶金、制药、             widely used in petroleum, chemical, electric

供水、建筑、燃气等行业                          power, metallurgy, pharmaceutical, water supply,

                                                                construction, gas and other industries