3/4" NPT Tankless Water Heater Valves 150 PSI With Expansion Tank

Calefactio’s service valves kit is designed for tankless water heaters under 2 gallons. It combines two isolation valves including drains, a pressure relief valve, a union tee, and an expansion tank.

The expansion tank function is to absorb the increased volume of water which results from the heating process, thereby keeping the system’s pressure below the relief valve setting. It also acts as a water hammer or shock absorber to absorb a sudden change in fluid velocity after the sudden closing of a faucet.

ADVANTAGES

VALVES

• Secure seal
• Lead free
• Facilitate maintenance with dedicated ports
• Easy identification of hot and cold valves
• Provided with 150 PSI pressure relief valve (PRV)
  

EXPANSION TANK

• Water never comes in contact with the tank
• No rust or corrosion of the steel shell
• Strong welded construction
• EPDM bladder without restriction
• Resistant electrostatic paint finish
• Factory precharge on all models1 pressure relief valve

INCLUDED

• 2 tankless water heater valves
• 1 pressure relief valve
• 1 expansion tank
• 1 union tee