Blackmer LB161, LB361, LB601 & LB942 Compressors Oil-Free Gas Compressors for Liquid Transfer and Vapor Recovery  



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General Information


Blackmer oil-free gas compressors deliver high efficiency in handling propane, butane, anhydrous ammonia and other liquefied gases. They are ideal for rail car unloading and vapor recovery applications.

The single-stage, reciprocating compressors are designed to give maximum performance and reliability under the most severe service conditions. All pressure parts are of ductile iron construction for greater resistance to both thermal and mechanical shock.

They are designed for ease of maintenance, with all components readily accessible.

Models are available with capacities from 7 to 125 cfm (11.9 to 212 m3 /h) with working pressure up to 425 psia (29.31 Bar).
  • High efficiency valves move more gas volume
    The heart of any compressor is its valve assembly and Blackmer valves are specifically designed for non-lubricated gas applications. With precisely engineered clearances, spring tension, and a special finish, these valves seat more positively so more gas is moved with each piston stroke. Blackmer valves offer greater strength, quiet operation, and long life.
  • O-Ring seals-head and cylinder
    The head and cylinder are sealed with O-rings to ensure positive sealing under all operating conditions.
  • Pressure assisted piston rings for positive seating
    Constructed of self-lubricating PTFE, Blackmer's special ring design provides maximum sealing efficiency with minimal friction wear. The result: peak performance and extended compressor service life.
  • Heavy-duty crankshaft
    The ductile iron crankshaft is precision ground with integral counterweights for smooth, quiet operation. Rifle drilling ensures positive oil distribution to the wrist pin and connecting rod bearings.
  • Pressure lubricated crankcase
    A rotary oil pump provides positive oil distribution to all running gear components for long life and minimal wear.
  • Wear-resistant crosshead assemblies
    Designed for maximum lubrication and wear resistance.
  • Ductile iron pistons
    Heavy-duty ductile iron pistons are connected with a single positive locking nut which eliminates potential problems associated with more complex designs.
  • Self-adjusting piston rod seals
    Crankcase oil contamination and cylinder blow-by is prevented with loaded glass-filled PTFE seals which maintain a constant sealing pressure around the piston rods.
  • Ductile iron construction
    All pressure parts are of ductile iron for greater resistance to both thermal and mechanical shock.



  DMC Gas Equipment Limited  
  Unit 11, 11/F, Tower One,
Ever Gain Plaza,
88 Container Port Road,
Kwai Chung, NT, Hong Kong
  TEL: +852 2851-2121
FAX: +852 2851-2129

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