A unique and significant feature of the Tempress cartridge is the incorporation of integral check valves. These checks eliminate the possibility of any cross-connection. Also, the checking function isolates water hammer and greatly reduces or eliminates the noise associated with water hammer.
Furthermore, there are no metal-to-metal sliding parts, which bind or freeze-up due to liming or minerals in the water. The self-contained pressure-balancing cartridge is made of a glass-filled NORYL, an engineered plastic introduced by General Electric. NORYL will never corrode and therefore the balancing assembly is also comprised of NORYL.
All moving parts are self-contained in one, easily replaced, cartridge. If required, maintenance is performed in a few minutes. The valve is then renewed, not just repaired.