Bray Series 22-23 resilient seated butterfly valve is crafted in a variety of materials such. These materials include PTFE, PFA, Stainless Steel, as well as UHMWPE. Bray Series 22 / 23 can also come in special alloys to fit a wide range of customer requirements. Extensive field research and engineering have developed this state-of-the-art design. This design provides excellent shutoff protection (bubble-tight shutoff) and high Cv values. As with all Bray's products, precision manufacturing and exceptional quality remain the keys to a proven record of long service life. FloSource is here to answer any questions, as well as help verify this is the correct Bray Series butterfly valve to meet your application needs.