As the sketch below shows, all pipe lines have the potential to create vacuum conditions. The widespread use of ABS piping has put the spot light on this problem since collapsing happens at lower vacuums than metal pipe. While siphon breakers are available for use in clear liquids, abrasive slurries present serious difficulties. The TECH-TAYLOR T1 is available in only one size, 4 inch (100mm), and is suitable for line pressures up to 200 psig. Like the widely used T2 series, this is a free ball check valve using an elastomer lined housing built in 3 sections for easy maintenance. The ball is...