1. Allow two inputs for one output.
2. Check ball is for stopping air from the input on lower pressure side.
1. Model: ST-01, ST-02. 
2. Port size: 1/8", 1/4". 
3. Fluid: compressed air. 
4. Body material: aluminum alloy. 
5. Sectional area: ST-01 7.5m㎡, ST-02 21m㎡. 
6. Pressure range: 1.5~10kgf/c㎡. 
7. Max. pressure: 10kgf/c㎡. 
8. Temperature range: -10℃~80℃. 
9. Flow rate: ST-01 823ι/min, ST-02 1583ι/min.