进口升降式止回阀(德国奥莱斯OLES阀门)
【进口升降式止回阀】详细说明:
升降式止回阀选用于公称压力PN1.6~6.4MPa,工作温度-29~550℃的石油、化工、火力电站等各种工况的管路上。适用介质为:水、油品、蒸汽等。
止回阀又称为逆流阀、逆止阀、背压阀、单向阀。这类阀门是靠管路中介质本身的流动产生的力而自动开启和关闭的,属于一种自动阀门。止回阀用于管路系统,其主要作用是防止介质倒流、防止泵及其驱动电机反转,以及容器内介质的泄放。止回阀还可用于给其中的压力可能升至超过主系统压力的辅助系统提供补给的管路上。
Lifting check valves are used in pipelines with nominal pressure PN1.6-6.4 MPa and working temperature - 29-550 C in petroleum, chemical and thermal power stations. Applicable medium: water, oil, steam, etc.
Check valves are also known as countercurrent valves, check valves, back pressure valves, one-way valves. This kind of valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, and belongs to an automatic valve. Check valves are used in pipeline systems. Their main functions are to prevent medium backflow, reverse pumps and their driving motors, and release of medium in containers. Check valves can also be used in pipelines to supply auxiliary systems where the pressure may rise to more than the pressure of the main system.
【进口升降式止回阀】结构特点:
1选材考究,材料的全面质量高。
2密封副配对*合理,阀瓣、阀座密封面采用铁基合金或司太立(Stellite)钴基硬质合金堆焊面成,耐磨、耐高温、耐腐蚀、抗擦伤性能好,使用寿命长。
3可采用各种配管法兰标准及法兰密封型式,满足各种工程需要及用户要求。
4阀体材料品种齐全,垫片可根据实际工况或用户要求合理选配,能适用于各种压力、温度及介质工况。
可按用户要求设计制造不同结构形式和连接形式的止回阀,为各种设备配套使用。
【进口升降式止回阀】特点:
1、体积小,重量轻,结构紧凑、维修方便
2、阀板采用对偶式,在弹簧的弹性力下矩下可自行速闭
3、因速闭作用,可防止介质倒流
4、阀体结构长度尺寸小,刚性好
5、安全方便,可用于水平垂直两个方向安装