ball safety valve

The first major evolution to the True Union Ball Valve, Model-B, introduced the Tru-Bloc concept, a functional safety feature.

True Union球阀的第一次重大改进是型号B，引进了Tru-Bloc的设计理念，一种更加安全的性能。

Safety Valve, Ball Valve, Needle Valve, Y-type Cylinder Control Valve, Y Cylinder Valve, Check Valve Cock.

采购产品安全阀, 球阀, 针形阀, Y型气缸控制阀, y筒形阀, 止回阀.

Ball type surface controlled safety valve

地面控制的球型安全阀

The check valve of the single piston pump was replaced by ball valve, and conical valve with guidance was used for safety valve;

单柱塞油泵的单向阀改成球阀，安全阀改用带导向的锥阀；

Ball check valve A too narrow sealing surface of the lamella combined with the improper material quality of the lamella is the main cause affecting the annular scars on the safety value.

阀瓣密封面过窄与阀瓣材质的选择不当，是影响安全阀环形伤痕的主要原因。