Series 713 swing check valves from Victaulic offer higher working pressures than previous designs and include 2- to 4-inch sizes. Valves can be used in applications requiring Class 300 pressure ratings. The 2-inch valve is rated to 1,000 psi and the 2 1/2-, 3- and 4-inch sizes are rated to 750 psi. The grooved-end valves are designed for headers that feed upstream facilities for faster and easier installation and maintenance than flanged valves. It is available with grade “E” EPDM or grade “T” nitrile seat material, which have corresponding temperature ranges of -30 to 230 degrees F. The valve is designed for use in horizontal installations and can be coated for use in corrosive environments. 610/559-3300; www.victaulic.com.