进口截止止回阀 美国RETZ瑞茨

进口截止止回阀性能描述 Performance description

截止止回阀集截止和止回两种功能的阀门,把阀杆和阀瓣的连接设计成可以开的结构，所以，在关闭阀门时，阀杆可顶住阀瓣运动，使阀瓣密封面与阀座密封面密合，达到关闭阀门状态。此时，阀门起切断管路中介质的截止阀作用。当开启阀门时，是阀杆与阀瓣脱开，此时，阀门可作为防止介质倒流的止回阀用retz The stop check valve combines two functions: stop and check. The connection between the valve stem and disc is designed as an open structure. Therefore, when closing the valve, the valve stem can resist the movement of the disc, making the sealing surface of the disc and the valve seat close, achieving the closed valve state. At this point, the valve acts as a shut-off valve to cut off the medium in the pipeline. When the valve is opened, the valve stem and disc detach, and the valve can be used as a check valve to prevent media backflow.

进口截止止回阀主要特点DESIGN FEATURES

截止止回阀一阀两用,可代替一个截止阀和一个止回阀阀杆和阀瓣的连接设计成可以隔开的结构，既可以切断，又可以止回

作截止阀时：在关闭阀门时，阀杆可顶住阀瓣运动，使阀瓣密封面与阀座密封面密合，达到关闭阀门状态。此时，阀门起切断管路中介质的截止阀作用

作止回阀时：当开启阀门时，是阀杆与阀瓣脱开，此时，阀门可作为防止介质倒流的止回阀用

技术规范 Technical specifications 

设计标准∶EN12516、DIN3356、ASMEB16.34；

结构长度∶EN558、DIN3202、ASMEB16.10；

法兰标准∶EN1092-1、GB/T9113、DIN2543-2545、ASMEB16.5 ；

规格尺寸：Size : 2～12"

压力范围 Nominal pressure：PN16～PN40、CL150～300LB

温度范围 Applicable temperature ：-20～350℃

阀体：WCB、304/316不锈钢

阀座：304、Stellite

阀瓣：20Cr13、304、Stellite

阀杆：20Cr13、304、316