• NEP-GE-50-1
  • By Neptune
  • Call for Availability



  • Float switch for low-level pump shutoff
  • Triplex diaphragm pump operating at 1 GPM at 40 psi
  • 115 VAC 60Hz power cord
  • 100 psi (6.9 bar) brass relief valve with PVC return line


The Neptune Economy Glycol Feed System adds glycol solution to closed-loop chilled or hot water systems. The system automatically maintains pressure in the loop by adding glycol solution to make up for losses that occur due to leakage.

The system utilizes a triplex diaphragm pump with an integral adjustable pressure switch to control the shut-off set point for the addition of glycol over a range of 40 to 60 psi +/- 5 psi (2.8 to 4.1 bar +/- 0.4 bar). The pump feeds glycol into the system until the pressure set point is achieved and stops the pump.