Series 300 Steam LP Boiler

Series 300 Steam LP Boiler

The Series 300 Steam Boiler is available with firing inputs from 300,000 Btu/hr to 375,000 Btu/hr. However, many millions of Btu’s can be delivered by creating an efficient, fully modular system of multiple vessels properly sequenced by a control panel.

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Design

The Series 300 Steam Boiler is manufactured to exceed ASME Section IV standards and typically is used to provide operating pressure of up to 15 psi with nominal operating temperature of 218°F to 240°F. These vessels contain 37 vertical firetubes, each of which is 1½” diameter, each fitted with a high-efficiency turbulator for maximum heat transfer. The combustion chamber is fully water-backed, with burners that are UL listed. This boiler qualifies as a Category I gas appliance with industry standard controls wired to NEC specifications.

Safety

A well-made, heavy vessel is naturally a safer boiler. But Superior Boilers also have a firebox design that is completely backed by water, along with extra safety controls on the boiler that results in a very safe and secure package.

Standard Features

The following standard features include nationally known parts and controls that are available at most supply houses, allowing for quick and easy repair and maintenance, which can dramatically reduce down time:

  • UL Listed Gas Trains and Control Systems.
  • Choice of Power Burners.
  • Main and Auxiliary Gas Valves
  • Air Flow Switch
  • Main Manual Leak Test Valve
  • Pressure Control
  • High-Limit With Manual Reset
  • 5801-30 lb Pressure Gauge
  • Siphon Loops
  • 15 lb Pressure Relief Valve
  • 150 Water Level Control
  • Automatic Low Water Cutoff
  • Gauge Glass Assembly
  • Honeywell Aquastat Relay
  • Burner Control Relay
  • High Visibility Operating Light
  • 1½” Diameter Firetubes of SA178-A Steel
  • Turbulators for Maximum Heat Transfer
  • Two Inches of Insulation With a Painted Steel Jacket.

Support Documents

Cut Sheet (PDF)
Sample Spec (Word Doc)
O&M Manual (PDF)
Steam Boiler Brochure (PDF)

Drawings

Series 300 Steam, Low Pressure
Model #
HP
File
GMS-300
7.7
GMS-375
9.6

Boiler Efficiencies

Series 300 Steam, Low Pressure
Model
Input (BTU/Hr)
Gross OutPut
HP Output
Combustion Efficiency
GPM @ Riseº F
Steam Output (lbs/hr)
Heating Output (sq. ft.)
GMS-300
300,000
258,000
7.7HP
86.0%
N/A
259
34
GMS-375
375,000
321,750
9.6HP
85.8%
N/A
324
34

Boiler Dimensions

Series 300 Steam, Low Pressure
Feature
Dimension
Vessel Width
22"
Vessel Height
57.5"
Boiler Weight
800 lbs
Boiler Depth w/ Burner
40"
Gas Inlet Height
11"
Return Water Inlet Height
7"
Height Required at Installation
82"
Clearance to Front of Boiler
48"
Clearance to Side of Boiler
18"
Clearance Between Boilers
3"
Clearance of Steam Pipe to Vessel Top
24"

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