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1599 Temperature Pressure Relief Valve - Water Heaters - Conventional Tank Type
 
1599 Temperature Pressure Relief Valve - Water Heaters - Conventional Tank Type -

Image Text: Pressure: OK > Temperature: OK > spring > poppet valve > sensor probe > to drain > Pressure: greater than 150 PSI > Temperature: OK > manual relief lever can also be used to open poppet valve > to drain > water pressure overcomes spring pressure and opens poppet valve > Pressure: OK > Temperature: greater than 210 degrees Fahrenheit > to drain > piston > wax fill > heat expands wax fill in probe - pushing piston and opening poppet valve > Note: mechanism simplified for clarity > electric water heater > 6 inches - 12 inches > less than 6 inches > hot > cold

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Image courtesy of Carson Dunlop. To purchase images, go to CarsonDunlop

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