Hubbell Water Heaters -Model STX Packaged Semi-Instantaneous Steam Fired Water Heater

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The Model STX is a fully packaged semi-instantaneous steam fired water heater which utilizes steam for heating potable water. The entire package is designed to be a reliable and long lasting source for hot water.

Category: indirect-fired water heaters | instantaneous water heaters | water heaters...

MasterFormat: Plumbing Equipment | Domestic Water Heat Exchangers



Hubbell Water Heaters
45 Seymour Street
P.O. Box 288
Stratford, CT 06615
Tel: (203) 378-2659
Fax: (203) 378-3593

info@hubbellheaters.com

http://www.hubbellheaters.com/

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Overview


Model STX Packaged Semi-Instantaneous Steam Fired Water Heater

The Model STX is a fully packaged semi-instantaneous steam fired water heater which utilizes steam for heating potable water. The entire package is designed to be a reliable and long lasting source for hot water. Each component is carefully selected to ensure high performance in even the most demanding application. Whether you are heating potable water in a commercial building or process water in an industrial application, you can select a Hubbell STX model to do the job. When you specify and install a Hubbell water heater, you will be provided with a quality product that is a long lasting and trouble-free source for hot water.


Reliable
  • Only high grade materials used in construction to ensure long operating life
  • Hydrastone cement lining provides superior protection and tank longevity
  • Heavy duty construction withstands demanding commercial/industrial use
Packaged System
  • Factory supplied with all steam controls saving time and money during installation
  • All steam operating controls are factory sized and selected to ensure reliable operation
Versatile
  • Full range of styles, sizes, and optional features to meet your exact heating needs

Model STX Semi Instantaneous Standard Equipment
Vessel Construction
  • Solid 90/10 vessel and built in strict accordance with the ASME Code Section VIII and stamped, certified, and registered with the National Board of Boiler and Pressure Vessel Inspectors
  • Designed for 150 psi working pressure and hydrostatically tested
Steam Water Operating Controls
  • Steam operating controls are factory selected, sized, piped and tested to ensure reliable operation
  • All steam components are factory plumbed with schedule 40 black iron pipe and ready for steam and condensate connections
  • High quality cast iron pilot operated steam control valve modulates the flow of steam through the heating coil to provide accurate water temperature control
  • Cast iron Y strainer with 20 mesh screen protects the steam controls and coil from dirt and debris in the steam supply
  • Thermostatic drip trap removes condensate from the steam supply line
  • Heavy duty cast iron float and thermostatic main condensate trap for optimum efficiency
  • All bronze integral circulating pump
  • Direct mounted steam and domestic water temperature and pressure gauges
  • High limit single solenoid safety system closes the steam supply to the heating coil should the water temperature in the tank reach the hi-limit set point. Requires 120 volt 5 amp electrical service
Heating Coil
  • Factory sized and installed copper heating coil with a gernously sized heating surface designed to ensure reliable operation
  • U-Tube heating coil constructed from single wall copper tubing designed for a maximum working pressure of 150 psi
  • Heavy duty fabvricated steel head with threaded NPT inlet and outlet connections
  • All wetted parts are non-ferrous for maximum longevity
  • Non-Ferrous tube sheet
General
  • Heavy duty 3" thick fiberglass insulation for maximum operating efficiency and minimal stand-by heat loss
  • Heavy gauge painted galvanized steel protective outer jacket
  • Heavy duty integrally welded steel supports and base for floor mounting
  • Full five (5) year Non Pro-Rated pressure vessel and a one (1) year component warranty
  • ASME rated combination T&P relief valve set at the tank working pressure and 210°F

Model STX Optional Equipment
Vessel
  • Alternate vessel construction:
    Stainless Steel Type 304 or 316L
  • Alternate working pressure: Specify
Heating Coil
  • Double wall tubing with a leak detection port
  • Alternate tubing material:
    Stainless Steel, 90/10 Copper-Nickel, Admiralty
  • Fabricated head constructed from:
    Stailess Steel, Copper Alloy
General
  • Type 304 stainless steel protective jacket
Operating Controls
  • A double solenoid safety system dumps over heated water in the vessel to drain in addition to closing the steam supply to the heating coil. Requires 120 volt 5 amp electrical service
  • Electric or Pneumatic operated steam control valve
  • Electric Control package for integration with Energy Management Software (EMS) and Building Automation Software (BAS). MODBUS communication to monitor the heater via RS-232 or RS-485

Please note: optional equipment may impact overall dimensions and weight. Please request submittal drawing from factory.


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Specifications

Model STX (Vertical)
Model STXH (Horizontal)
Overall Dimensions, Model STX Vertical Dimensions (Inches)
Model No. Based on 100°F Δ T Recovery Rate (40-140°F)
Base ModelRecovery Rating (GPH) 40-140°FBTU/HrSteam Supply Pressure (psi)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Vertical Model STX Overall Dimensions (inches)Weight (Lbs)
Base ModelRecovery Rating (GPH) 40-140°FBTU/HrSteam Supply Pressure (psi)Single WallSingle WallSingle WallSingle WallSingle WallDouble WallDouble WallDouble WallDouble WallDouble WallWeight (Lbs)
Base ModelRecovery Rating (GPH) 40-140°FBTU/HrSteam Supply Pressure (psi)ABCDEABCDEWeight (Lbs)
STXCN-600600500,000599463511.62517.7599.5463512.62518.75610
STXCN-600600500,0001587402911.62517.7599.5463512.62518.75585
STXCN-600600500,0002587402911.62517.7587.5402912.62518.75585
STXCN-600600500,0005087402911.62517.7587.5402912.62518.75585
STXCN-600600500,0007598.5463610.50016.7587.5402912.62518.75560
STXCN-900900750,000587.5402912.62518.7588412814.62521655
STXCN-900900750,0001599463511.62517.7599.5463512.625 18.75 610
STXCN-900 900 750,000 25 99 46 35 11.625 17.75 99.5 46 35 12.625 18.75 610
STXCN-900 900 750,000 50 87 40 29 11.625 17.75 87.5 40 29 12.625 18.75 585
STXCN-900 900 750,000 75 87 40 29 11.625 17.75 87.5 40 29 12.625 18.75 585
STXCN-1200 1200 1,000,000 5 87.5 40 29 12.625 18.75 88 41 28 14.625 21 655
STXCN-1200 1200 1,000,000 15 75.5 34 23 12.625 18.75 88 41 28 14.625 21 615
STXCN-1200 1200 1,000,000 25 75.5 34 23 12.625 18.75 99.5 46 35 12.625 18.75 615
STXCN-1200 1200 1,000,000 50 87 40 29 11.625 17.75 99.5 46 35 12.625 18.75 585
STXCN-1200 1200 1,000,000 75 87 40 29 11.625 17.75 87.5 40 29 12.625 18.75 585
STXCN-1500 1500 1,250,000 5 76 35 22 14.625 21 100 47 34 14.625 21 770
STXCN-1500 1500 1,250,000 15 87.5 40 29 12.625 18.75 88 41 28 14.625 21 655
STXCN-1500 1500 1,250,000 25 75.5 34 23 12.625 18.75 88 41 28 14.625 21 615
STXCN-1500 1500 1,250,000 50 99 46 35 11.625 17.75 99.5 46 35 12.625 18.75 610
STXCN-1500 1500 1,250,000 75 87 40 29 11.625 17.75 99.5 46 35 12.625 18.75 585
STXCN-1800 1800 1,500,000 5 76 35 22 14.625 21 89 41 28 16.75 23 770
STXCN-1800 1800 1,500,000 15 76 35 22 14.625 21 88 41 28 14.625 21 770
STXCN-1800 1800 1,500,000 25 87.5 40 29 12.625 18.75 88 41 28 14.625 21 655
STXCN-1800 1800 1,500,000 50 75.5 34 23 12.625 18.75 88 41 28 14.625 21 615
STXCN-1800 1800 1,500,000 75 99 46 35 11.625 17.75 99.5 46 35 12.625 18.75 610
STXCN-2400 2400 2,000,000 5 77 35 22 16.750 23 89 41 28 16.75 23 985
STXCN-2400 2400 2,000,000 15 76 35 22 14.625 21 100 47 34 14.625 21 770
STXCN-2400 2400 2,000,000 25 76 35 22 14.625 21 88 41 28 14.625 21 770
STXCN-2400 2400 2,000,000 50 87.5 40 29 12.625 18.75 88 41 28 14.625 21 655
STXCN-2400 2400 2,000,000 75 87.5 40 29 12.625 18.75 88 41 28 14.625 21 655
STXCN-3000 3000 2,500,000 5 77 35 22 16.750 23 78 36 21 18.75 25 985
STXCN-3000 3000 2,500,000 15 76 35 22 14.625 21 89 41 28 16.75 23 770
STXCN-3000 3000 2,500,000 25 76 35 22 14.625 21 89 41 28 16.75 23 770
STXCN-3000 3000 2,500,000 50 76 35 22 14.625 21 88 41 28 14.625 21 770
STXCN-3000 3000 2,500,000 75 87.5 40 29 12.625 18.75 88 41 28 14.625 21 655
STXCN-3600 3600 3,000,000 5 77 35 22 16.750 23 90 42 27 18.75 25 985
STXCN-3600 3600 3,000,000 15 77 35 22 16.750 23 89 41 28 16.75 23 985
STXCN-3600 3600 3,000,000 25 76 35 22 14.625 21 89 41 28 16.75 23 770
STXCN-3600 3600 3,000,000 50 76 35 22 14.625 21 100 47 34 14.625 21 770
STXCN-3600 3600 3,000,000 75 76 35 22 14.625 21 88 41 28 14.625 21 770
STXCN-4200 4200 3,500,000 5 78 36 21 18.750 25 90 42 27 18.75 25 1130
STXCN-4200 4200 3,500,000 15 77 35 22 16.750 23 78 36 21 18.75 25 985
STXCN-4200 4200 3,500,000 25 77 35 22 16.750 23 89 41 28 16.75 23 985
STXCN-4200 4200 3,500,000 50 76 35 22 14.625 21 89 41 28 16.75 23 770
STXCN-4200 4200 3,500,000 75 76 35 22 14.625 21 100 47 34 14.625 21 770
STXCN-4800 4800 4,000,000 5 78 36 21 18.750 25 96 43 33 20 26.625 1130
STXCN-4800 4800 4,000,000 15 77 35 22 16.750 23 90 42 27 18.75 25 985
STXCN-4800 4800 4,000,000 25 77 35 22 16.750 23 78 36 21 18.75 25 985
STXCN-4800 4800 4,000,000 50 76 35 22 14.625 21 89 41 28 16.75 23 770
STXCN-4800 4800 4,000,000 75 76 35 22 14.625 21 100 47 34 14.625 21 770
STXCN-6000 6000 5,000,000 5 84 37 27 20.000 26.625 87 37.5 27 22 31 1480
STXCN-600060005,000,0001578362118.7502590422718.75251130
STXCN-600060005,000,0002577352216.7502378362118.7525985
STXCN-600060005,000,0005077352216.7502389412816.7523985
STXCN-600060005,000,0007576352214.6252189412816.7523770
STXCN-750075006,250,00058737.52722.00031-----1610
STXCN-750075006,250,0001578362118.750258737.52722311130
STXCN-750075006,250,0002578362118.750258437272026.6251130
STXCN-750075006,250,0005077352216.7502390422718.7525985
STXCN-750075006,250,0007577352216.7502389412816.7523985
STXCN-900090007,500,0005-----------
STXCN-900090007,500,0001584372720.00026.6259943.53322311480
STXCN-900090007,500,0002578362118.750259943.53322311130
STXCN-900090007,500,0005078362118.7502590422718.75251130
STXCN-900090007,500,0007577352216.7502390422718.7525985
STXCN-1050010,5008,750,0005-----------
STXCN-1050010,5008,750,000158737.52722.00031-----1610
STXCN-1050010,5008,750,0002584372720.00026.6259943.53322311480
STXCN-1050010,5008,750,0005078362118.750259643332026.6251130
STXCN-1050010,5008,750,0007577352216.7502390422718.7525985
Note:
All dimensions are approximate and subject to change. Please reference the submittal drawing for actual dimensions.
Piping Layouts
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