ANDERSON BRASS SUCCESS STORY
 
 

GEOTHERMAL VALVE

Background: In a geothermal closed loop system, pump(s) circulate a fluid through a network of piping runs buried underground or in a body of water. Fluids form these ground loops are circulated through a heat exchanger where the heat is given up to a heat pump.   Heat pump(s) are designed to move thermal energy opposite to the direction of spontaneous heat flow by absorbing heat from a cold space and releasing it to a warmer one, and vice-versa. Since the ground loops need to be air free for proper heat transfer, a geothermal valve was needed for filling and purging these closed loops.

OUT with the old and IN with the new: Older style geothermal valves were heavy, cast pieces of brass. Being made from a casting meant these valves were not always uniform or properly aligned. They relied on a single O-ring for sealing and were known to allow air into the system. Noticing this design flaw Anderson Brass created our own version utilizing a three way ball valve with PTFE seats to avoid any tendency for air entering the loops while more efficiently purging.  Our geothermal BALL Valve is forged for strength, uniformity and offers a 40% in weight reduction. Each port of the ball valve is sealed using PTFE seats for 100% contact against the ball at all times.

Thier Version Our Version

Features not found on theirs:

  • Forged Brass Construction
  • Ball Valve Design
  • Full PTFE Seats On All Ports
  • Rotational Flange
  • 40% Weight Reduction



1629 West Bobo Newsom Hwy., Hartsville, SC USA 295501.843.332.4111  •  1.800.476.9876  •  Fax: 1.843.332.3752