Reliance worldwide corp 22304-0000lf ½” Ball Valve and Drain</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Provides automatic air venting for hot or cold water distribution systems</li><li>Purges air that may be in water system</li><li>Can also operate as an anti-vacuum device</li><li>Minimum working pressure 1.45 psi， maximum working pressure 150 psi</li><li>Maximum working temperature 240°F</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41uDORp1s-L.jpg' noproxy></br>