Sentry manufactures Compact Heat Exchangers with a single (19-50 ft) long helical tube coil; ¼” 3/8” and ½”. 316 SS and Inconel 625 coiled units are stocked locally. Higher alloys ship within 2-3 weeks.
For higher flows (0.5-200 gpm), Sentry manufactures a custom engineered Multi-tube Spiral Coil Heat Exchanger, which ship within 4-6 weeks. Both designs are well suited for high-pressure services.
Polaris PHE with compact densely-packed surface area and overall superior thermal efficiency means that Polaris PHEs use up to 80% less floor space than shell-and-tube models. The weight difference is even bigger: shell-and-tube exchangers often weigh 10 times more than Polaris units. Temperature approaches as close as 1° to 2°F.
Sentry XC system efficiently recovers 90% of the available heat from the blowdown and, in a coordinated manner, transfers it to the make-up water; reducing fuel cost thus reducing CO2 consumption and promoting green efficiency gains.
The XC control valve provides a rugged mechanical thermostat for proportioning the blowdown flow to make-up water. This eliminates the high level of Total Dissolved Solids in the boiler that occurs from manual adjustments thus reducing boiler scaling & associated problems.