Columbia Boiler CT-Series Vertical Steam Boiler 50 HP Natural Gas Power Flame JR50A-15 Burner 150 PSI MAWP Built 2012

OVERVIEW

This is a Columbia vertical tubeless steam boiler — Type CT, rated 50 boiler horsepower. Vertical cylindrical pressure vessel fired by natural gas, factory-built by Columbia Boiler Co. of Pottstown, Pennsylvania, with a Power Flame JR50A-15 forced-draft gas burner, integral water column and gauge glass, pressure gauge, control cabinet, and complete gas train with regulator. Electrical supply 115V, 60 Hz, single phase, 16 amps overall. Year built 2012. Ready for inspection — contact us to schedule.

Columbia Type CT vertical gas-fired steam boiler — 50 HP, 150 PSI maximum allowable working pressure, rated 1,725 lbs/hr steam capacity at a firing rate of 2,100,000 BTU/hr on natural gas. Equipped with a Power Flame JR50A-15 natural gas burner (650–2,100 MBH input range), Marathon burner motor, factory control cabinet, water column with gauge glass and low-water cutoff probes, steam pressure gauge, and full gas train with manual gas pressure regulator. UL-listed gas-fired boiler assembly for use with GR.6 primary safety controls. Suitable for industrial and institutional steam plants.

Ideal for industrial process steam, institutional and campus heating systems, hospital or healthcare steam plants, food and beverage processing, laundries and dry cleaners, or any application requiring a compact vertical packaged steam boiler with a small footprint.

EQUIPMENT SPECIFICATIONS

Boiler:

• Manufacturer: Columbia Boiler Co. of Pottstown — Pottstown, PA, USA
• Equipment Type: Vertical Tubeless Gas-Fired Steam Boiler
• Model / Type: CT
• Boiler Horsepower: 50 HP
• Maximum Allowable Working Pressure (MAWP): 150 PSI
• Steam Capacity: 1,725 lbs/hr
• Safety Valve Capacity: 1,725 lbs/hr
• Shell Thickness: 3/8"
• Firing Rate: 2,100,000 BTU/hr — Natural Gas
• Inlet Manifold Pressure: 4.5–14 in. W.C.
• National Board No.: 150807
• Year Built: 2012
• Tank Orientation: Vertical
• Electrical Supply: 115V, 60 Hz, 1-Phase — 16 Amps overall
• Listing: UL-Listed Gas-Fired Boiler Assembly (for use with GR.6 primary safety controls)
• Model Prefix: MP-3171

Burner:

• Manufacturer: Power Flame
• Model: JR50A-15
• Serial No.: 091179881
• Job Order No.: J065118
• Fuel Type: Natural Gas (NAT)
• Gas Input Range: 650–2,100 MBH
• Control Voltage: 115V / 60 Hz — 6.0 Amps
• Motor: Marathon — 208/115V, 60 Hz
• Minimum Circuit Ampacity: 18.25 A

Trim & Controls:

• Columbia control cabinet (panel-mounted)
• Water column with gauge glass and low-water-cutoff probes
• Steam pressure gauge
• Gas train with manual gas pressure regulator and shutoff
• Eaton safety/disconnect switch
• Honeywell burner control

KEY FEATURES & BENEFITS

Columbia Vertical Boiler:

• Vertical tubeless design — compact, small-footprint steam generation
• 50 HP / 1,725 lbs/hr steam output
• 150 PSI maximum allowable working pressure
• 3/8" shell — heavy steel pressure vessel
• Factory-applied finish and insulation

Power Flame Burner:

• Power Flame JR50A-15 forced-draft natural gas burner
• 650–2,100 MBH modulating/staged gas input
• Marathon burner motor
• Integral gas train with manual pressure regulator
• Honeywell flame safeguard / burner control

Controls & Trim:

• Columbia factory control cabinet
• Water column / gauge glass with annual-service LWCO probes
• Steam pressure gauge
• Eaton disconnect switch
• Phase / voltage and water-treatment reference labeling (TDS 2,000 ppm max; oxygen <0.007 mg/l)

SYSTEM COMPONENTS

Boiler:

• Columbia Type CT vertical steam boiler — 50 HP
• National Board No. 150807, built 2012
• Steam pressure gauge and water column with gauge glass

Burner & Gas Train:

• Power Flame JR50A-15 natural gas burner, S/N 091179881
• Marathon burner motor
• Manual gas pressure regulator and gas train piping

Controls:

• Columbia control cabinet
• Honeywell burner control
• Eaton disconnect switch

SPECIFICATIONS SUMMARY

• Manufacturer: Columbia Boiler Co. of Pottstown (Boiler) / Power Flame (Burner)
• Equipment Type: Vertical Tubeless Gas-Fired Steam Boiler
• Model / Type: CT
• Boiler Horsepower: 50 HP
• MAWP: 150 PSI
• Steam Capacity: 1,725 lbs/hr
• Firing Rate: 2,100,000 BTU/hr — Natural Gas
• Burner: Power Flame JR50A-15 (650–2,100 MBH)
• National Board No.: 150807
• Year Built: 2012
• Electrical: 115V, 60 Hz, 1-Phase — 16 Amps
• Inlet Gas Pressure: 4.5–14 in. W.C.
• Listing: UL-Listed Gas-Fired Boiler Assembly
• Condition: Used

ADDITIONAL INFORMATION

• Condition: Used
• Manufacturer: Columbia Boiler Co. of Pottstown (Boiler) / Power Flame (Burner)
• Model / Type: CT — 50 HP
• National Board No.: 150807 — Built 2012
• Rated: 1,725 lbs/hr steam @ 150 PSI MAWP
• Burner: Power Flame JR50A-15 natural gas, S/N 091179881
• Electrical: 115V, 60 Hz, 1-Phase — 16 Amps
• Inspection: Welcome — contact us to schedule

IMPORTANT NOTES:

• Complete packaged steam boiler — vessel, burner, gas train, and controls included
• Natural gas fired — 2,100,000 BTU/hr input
• 115V single-phase supply required
• Vertical design — compact footprint for tight boiler rooms
• Must be installed on noncombustible flooring per nameplate; minimum clearances 48" front / 18" rear, sides, vent connector, and above
• Buyer responsible for transport and rigging arrangements from current location
• Contact us for additional photos, video walkthroughs, or technical questions