The LMC-331 is a vertical single-stage integrally geared centrifugal compressor.
- Flows to 850 ACFM (1,450 AM³/hr)
- Max. working pressure 1,440 psia (100 bar)
For over 50 years, Sundyne LMC integrally gear-driven centrifugal compressors have set the industry standard for high-head, low-flow fluid handling technology. Featuring a modular design with an independent wet-end and proprietary gearbox design, our engineers custom build every compressor to meet the unique Best Efficiency Point (BEP) of each customer’s application. With over one million possible configurations available, Sundyne integrally geared technology delivers superior performance over reciprocating compressors, allowing for maximized uptime and reduced maintenance costs. Combined, these feature benefits result in optimized productivity over the lifecycle of the unit. Backed by our global network of Authorized Service Centers, Sundyne compressors are the best in class option for a wide range of critical applications in the refining, LNG and gas production sectors, including mole sieve regeneration, polypropylene and lift gas duties.
|Maximum Flow||850 acfm||1,450 am³/hr|
|Maximum Speed||34,200 rpm-60Hz||33,600 rpm-50Hz|
|Maximum Working Pressure||1,440 psi||100 bar|
|Temperature Range||-200 to 500°F||-130 to 260°C|
|Maximum Motor Size||400 hp||298 kW|
|Hydro Test Pressure||1.5 Times Maximum Working Pressure|
|Min Casing Thickness||0.625 in||15.88 mm|
|Corrosion Allowance||0.125 in||3.18 mm|
|Impeller Clearance||0.03 to 0.05in||.76 to 1.27mm|
|Shaft Diameter at Bearings||1.5in (38.1mm)|
|Mechanical Seal Sizes-Outboard...||1.25 in||31.8 mm|
|Mechanical Seal Sizes-Inboard||1.5 in||38.1 mm|
|Mounting||Vertical or Horizontal|
|Flanges||600# ANSI RF standard, other ratings available|
|Suction Flange||3 inches|
|Discharge Flange||2 inches|
|Gearbox Oil Temp Range (normal...||120 to 180°F||49 to 82°C|
|Minimum Gearbox Starting Temp||32°f (0°C) with light turbine oil - lower with approved synthetic oil|
|Gearbox Lubricant||ISO VG-46 General Purpose Oil|
|Gearbox Sump Capacity||7 Quarts (6.6 Liters)|
|Gearbox Lube System||Pressurized|
|Gears||Hardened and precision ground, helical and/or spur|
|Input and Idler Bearings||Deep groove, angular contact or solid journal as required|
|Output Bearings||Solid Journal or tilt pad thrust and radial as required|
|Coupling||Spline, standard flexible or spacer type|
|Materials of Construction||Castings (carbon steel, stainless steel); Impeller (17-4PHSS, Titanium)|
Integrally Geared Centrifugal Single Stage Heavy Duty Compressor
Sundyne Corporation single-stage centrifugal compressors typically provide the same performance range as multi-stage, piston driven positive displacement compressors, allowing for smaller, easier to maintain equipment that requires overall less energy to keep running.
In the 1960s, Sundyne (then Sundstrand Fluid Handling) emerged as the leading expert for integrally geared centrifugal compressors.