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Plumbing Glossary
T & P VALVE A combination relief valve designed to function as both a temperature relief and a pressure relief valve.
TEMPERED WATER Water having a temperature range between 85 degrees F (29C) and 110 degrees F (43C).
TEMPERATURE RELIEF VALVE A temperature actuated valve designed to discharge automatically at the temperature at which such valve is set.
THIRD PARTY TESTED Procedure by which an approved testing laboratory provides documentation that a product, material or system conforms to specified requirements.
TRAP A fitting or device that provides a liquid seal to prevent the emission of sewer gases without materially affecting the flow of sewage or wastewater through the trap.
TRAP SEAL The vertical distance between the weir and the top of the dip of the trap.
