WATTS® 0274934 174A, 174A-030 Pressure Relief Valve, 1 in, FNPT, 30 psi, Bronze Body, Domestic

Features

• Seat located above drain; water can't be trapped and sediment can't foul seat
• Non-mechanical seat-to-disc alignment will not stick or freeze
• Water seal of high temperature resisting material isolates spring working parts from water during relief
• Nonmetallic disc-to-metal seating
• "The discharge line must be the same size as the valve outlet, and must pitch downward from the valve to a safe place for disposal"
• "Valve lever must be tripped at least once a year to ensure that waterways are clear, This device is designed for emergency safety relief and shall not be used as an operating control"

Specifications