Watts 0067371 PLT-12 Potable Water Expansion Tank

Specifications

• Part Number: 0067371
• Model: PLT-12
• Brand: Watts
• Product Type: Potable Water Expansion Tank
• Tank Volume: 4.5 Gallons
• Tank Acceptance: 3.42 Gallons @ 20 PSI
• Connection Size: 3/4" MNPT (Male NPT)
• Pre-Charge Pressure: 20 PSI (Field Adjustable)
• Maximum Working Pressure: 150 PSI
• Maximum Operating Temperature: 200°F (93°C)
• Construction: Steel Tank
• Diaphragm: Butyl Rubber
• Liner: FDA-Approved Polypropylene
• Inlet Connection: Stainless Steel
• Lead Free: Yes
• Certification: ANSI/NSF 61 & IAPMO Listed
• Application: Gas, electric, and oil-fired residential water heaters and hot water storage tanks
• Genuine Watts Replacement Product

Common Symptoms of a Failed Water Heater Expansion Tank

If your gas, electric, or oil-fired water heater in Calgary, Edmonton, Red Deer, Lethbridge, Medicine Hat, or anywhere in Alberta, or throughout the Greater Toronto Area, including Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Milton, Ajax, Pickering, and Oshawa, is experiencing pressure-related problems, a failed Watts PLT-12 Expansion Tank may be the cause.

A potable water expansion tank is designed to absorb the increased water volume created as water heats up inside a closed plumbing system. When the internal butyl rubber diaphragm fails or the tank loses its air charge, thermal expansion can no longer be absorbed. As system pressure rises, the plumbing system and water heater safety components are placed under unnecessary stress.

Common symptoms include:

• Water dripping or discharging from the temperature and pressure (T&P) relief valve.
• Water pressure increases after the water heater has completed a heating cycle.
• Fluctuating hot water pressure at faucets and fixtures.
• Banging or knocking noises in the plumbing system during heating cycles.
• Waterlogged expansion tank that feels unusually heavy.
• Water leaking from the Schrader air valve, indicating a ruptured diaphragm.
• Frequent T&P relief valve operation.
• Premature failure of water heater components caused by repeated pressure spikes.
• Visible corrosion, rust, or water leaking around the expansion tank.