Blowdown XC

Blowdown XC

Blowdown XC

Product catalog summary
Overview: The Sentry® XC blowdown system is a high-performance boiler heat recovery product designed to optimize energy efficiency and safety. It features an automatic proportional control valve that ensures blowdown is proportional to makeup water flow, preventing unnecessary blowdown without corresponding makeup flow.
Key Features:
  • Automatic proportional control valve with a thermostatic tube and adjustable seat.
  • Efficient counterflow heat exchanger with a stainless steel tube bundle designed to withstand thermal shock and high water velocities.
  • ASME stamped units for safety and compliance.
  • Models available for one to six boilers in the same recovery unit.
  • Typically recovers 90% of heat lost during blowdown.
  • Boiler pressure ratings from 35 to 250 psig (2.4 to 17.2 barg).
Benefits: The system eliminates hazards such as flash steam and overheated makeup, which can damage heat exchangers and piping. It is pre-piped for various boiler capacities, simplifying installation.
Specifications:
  • Control valve: Brass thermostatic tube, steel and ductile iron outer shell, stainless steel seat and plunger.
  • Sample cooler: Stainless steel, rated at 2000 psi/850°F (138 bar/454°C).
  • Heat exchanger: Removable U-tube bundle, 304 stainless steel tubes, ASME stamped for 250 psig/400°F (17.2 bar/204°C).
  • Balancing valves: Bronze 300 psi (21 bar) with strainers.
Models and Dimensions: Various models are available, each with specific dimensions and connection types to accommodate different boiler setups. The document provides detailed measurements for each model.
Conclusion: The Sentry® XC blowdown system is a robust solution for efficient heat recovery in boiler systems, offering significant energy savings and enhanced safety features.
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Catalog excerpts

Blowdown XC-1

Gas Liquid & Slurry Solid & Powder SENTRY XC BOILER BLOWDOWN SYSTEM Heat Exchangers Steam & Water The Sentry® XC blowdown system provides the best performance of any boiler heat recovery product available. During operation, 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. 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. X66-CLM5 | X69-CLM5 | X89-CKM5 X89-CKM6 BENEFITS The XC blowdown system 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 the heat exchanger and liberates dissolved gases that corrode the exchanger, piping and deaerator inlet. All systems are completely pre-piped for a broad range of boiler capacities, and installation is simple. FEATURES n One to six boilers in the same recovery unit Typically recovers 90% of heat lost during blowdown Quick payback in energy savings Boiler pressure ratings from 35 to 250 psig (2.4 to 17.2 barg) for a broad range of boiler capacities

 Open the catalog to page 1
Blowdown XC-2

BLOWDOWN INLETS FROM 2 TO 6 BUNDLE REMOVAL CLEARANCE MAKEUP INLET HEIGHT SENTRY CERTIFIED BY EQUIPMENT CORP. OCONOMOWOC,WIS 53066 M.A.W.P. PSIG. AT °F M.D.M.T. °F AT PSIG S/N MODEL YEAR BLOWDOWN OUTLET MAKEUP OUTLET (4) Ø3/4" MOUNTING HOLES LENGTH NOMINAL OVERALL DIMENSIONS (INCHES) MODEL MAXIMUM NUMBER OF BOILERS CONNECTION TYPE/SIZE (INCHES) BUNDLE REMOVAL CLEARANCE REQUIRED 30 66 66 102 102 MAKEUP INLET MAKEUP OUTLET BLOWDOWN INLET BLOWDOWN OUTLET 3/4 FNPT 3/4 FNPT 3/4 FNPT 3/4 FNPT 3/4 FNPT 3/4 FNPT 3/4 FNPT 3/4 FNPT 3/4 FNPT 1 FNPT SPECIFICATIONS automatic proportional control valve brass...

 Open the catalog to page 2

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