Our standard inlet check valve provides backflow protection for any 1/4-28 flat bottom connection. Made from PEEK, PCTFE, perfluoroelastomer, PTFE and stainless steel, it offers excellent chemical resistance. The spring-actuated sealing system eliminates backflow and helps prevent upstream contamination or damage. It has an opening pressure of 3psi and a 1/4-28 female and 1/4-28 female thread configuration.Meer tonenMinder tonen