HE2000 Series BARNES HE2000 RELIEF VALVE 1500-2500 PSI

For Concentric HE2000 Series power units, this is a cartridge style relief valve intended for that 1500 to 2500 psi range.

Operating in freezing environments is absolutely fine down to -13 degrees Fahrenheit. You just need to make sure your fluid viscosity stays within the allowable cold start limit of 9000 SSU at those lower temperatures.

For HE2000 Series power units, this is the cartridge style relief valve used in that family of units, with an adjustable relief range of 1500 to 2500 PSI. It’s intended for repairing or modifying existing HE2000 units, and it’s also used when building custom HE2000 Series power units.

That 1500 to 2500 psi is the adjustable range for the valve, not a fixed factory setting. You can dial it in anywhere within that window to match what your HE2000 power unit needs. The cartridge-style design on these is built for dependability and long service life, so once you get it set where you want it, it holds up well under repeated cycling.