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LX-50, LX-100, LX-150, LX-200

LXLX Gas/ Low NOx Series
Low and High Pressure Steam Boiler

Miura’s Ultra Low NOx Steam Generator uses the most advanced technology. The flat shaped burner and the rectangular shaped boiler vessel are uniquely designed for the reliable low NOx.

  • 5 minutes from cold start to full pressure.
  • Ultra Low NOx gas burner with “Quenched flame”.
  • Up to 300HP per boiler and up to 4,500HP (150,000lb/hr) with our MI-system.
  • 170 PSIG and 15 PSIG MAWP available.

Miura’s exclusive “low water content, water tube” design is the most versatile boiler available in the marketplace today. A once-through, forced circulation steam boiler producing steam in just 5 minutes while maintains an 85% fuel-to-steam efficiency.

LX Series Comparison Table

ITEM LX(L)-50 SG
LX(L)-100 SG
LX(L)-150 SG
LX(L)-200 SG
LX-300 SG[7]
Utilization Horsepower[1] (BHP) 50 100 150 200 300
Maximum Pressure (PSIG (MPa)) 170 PSIG MAWP, 150 PSIG Maximum Operating (15 PSIG MAWP)
Equivalent Output[2] (LB/HR) 1,725 3,450 5,175 6,900 10,350
Heat Output (BTU/HR) 1,674,000  3,348,000 5,022,000  6,695,000  10,050,000 
Efficiency (Fuel to steam)[3] 85% 87%
Operational Weight (LBS) 3,710 6,070 8,620 8,620 12,600
Shipping Weight (LBS) 3,480 5,470 7,820 7,820 11,500
Dimensions Given are Approximate
Width (in.) 37" (50") 38" (67") 55" 55" (75") 63"
Length (in.) 94" (119") 123" (155") 140"

140"

158"
Height (in.) 97" (147") 97" (161") 117" 117" (131") 123"
Combustion System Proprietary Forced Draft, Step Fired Hi-Low-Off
Ignition System Electric Spark Ignited, Interrupted Gas Pilot
Power Supply 208, 230, 460, 575V, 3 phase, 60Hz
Max. Electrical Consumption (KVA) 6.5 (5.0) 13.3 (10.9) 22.1 24.3 refer to insatallation manual 1.8
Fuel Type[4]
Natural Gas or Propane Gas (3-5 PSIG)
Natural Gas Consumption[5] (SCFH) 1,970 3,940 5,910 7,880 11,540
Gas Suppy Pressure 3-5 PSIG (Natural Gas or Propane Gas)
Main Steam Outlet (in.) 2" (4") 2" (6") 3" (8") 3" (8") 4"
Safety Valve Outlet[6] (in.) One 1 1⁄4" (2 1⁄2") One 2" (Two 2 1⁄2") One 2 1⁄2" (Two 4") Two 2 1⁄2"
Main Water Inlet (in.) ¾" 1" 1 1/2"
Fuel Gas Inlet (in.) 1 1⁄2" 2" 2 1⁄2"
Automatic Surface Blowdown One 3⁄8" Note 9
Bottom Blow-off & L.V.C Blow-off Two 1" Note 9
Chimney Diameter (OD) 12" 20"
Flame Detector Self-Checking Ultraviolet Flame Eye Sensor
Pressure Control Adjustable Pressure Transducer and Switches
Liquid Volume Control Electric Conductivity Type
Overheat Protection Low Water Cut Off & Thermocouple
new50


"S"   - Economizer
"G"   - Natural Gas or Propane Fired
"(L)" - Low Pressure

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