Water relief valve DTV

stainless steelbrassthermal

The DTV drain tempering valve is a self-operating drain cooler used in applications where a high-temperature discharge flow to a drain or sewer must be tempered with cold water. The thermostatic valve operates automatically to keep drain water within appropriate plumbing code limits and prevent PVC piping damage from over-temperature conditions. Operation – How the Tempering Water Valve Works The tempering water valve (DTV drain tempering valve) is installed into the drain line such that the hot effluent passes over the thermal actuator, which controls the cold-water inlet port. If the hot effluent is above the specified set point of the valve, the actuator senses the rising temperature and signals the DTV to open to allow the injection of cold water to temper down the discharge fluid before it reaches the drain. As the hot effluent cools, the DTV automatically modulates to reduce the cold-water inlet flow. At about 10°F below the full open temperature, the cold-water inlet is fully closed again to conserve water. The DTV provides a convenient, economical, and easy-to-use method of tempering hot effluent. Since this drain tempering water valve is open only when the effluent exceeds the specified set point temperature, it also conserves water by automatically turning off cold water when not needed. Typical Applications A steam condensate drain cooler is an essential component in many industrial processes where steam is utilized to heat a product or process.