Blowdown XC0 pages

Heat Recovery Product

Automatic Continuous Blowdown
Heat Recovery for Boiler Systems

Features

Description

t 1 to 6 boilers in the same recovery unit

Sentry Model XC boiler blowdown systems provide
the best performance of any heat recovery product
available.

t Typically recovers 90% of heat lost during blowdown
t Quick payback in energy savings
t Boiler pressure ratings from 35 to 250 psig (2.4 to
17.2 barg)

The XC is specifically designed to eliminate the twin
hazards of blowdown systems: FLASH STEAM which destroys heat exchangers, valves and piping
and OVERHEATED MAKEUP - which scales up the
heat exchanger, and liberates dissolved gases which
corrode the exchanger, piping and deaerator inlet.
All systems are completely pre-piped for a broad range
of boiler(s) capacities and installation is simple.
How It Works

MU
INLET

BD
OUTLET

BD
INLET

MU
OUTLET

www.sentry-equip.com

1.t The Automatic Proportional Control Valve uses a
direct acting thermostatic tube working against an
adjustable seat. The (cold) makeup water flows
between the inner and outer tubes automatically
regulating blowdown to be concurrent with and
proportional to makeup flow. It also virtually
ensures that no blowdown occurs without
proportional makeup flow. The (warm) blowdown
water flows through the inner thermostatic tube.
2.t The efficient counterflow heat exchanger comes
completely piped as part of the system. The
stainless steel tube bundle is specifically designed
to withstand thermal shock, water hammer,
abrasive materials and high water velocities. All
units are ASME stamped.

3.1.5 Rev. 6 03/13

XC BOILER BLOWDOWN SYSTEMS

XC BOILER BLOWDOWN SYSTEMS