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D-R's Pipeline Direct Inlet (PDI) centrifugal compressor is a single-stage, axial inlet compressor commonly used in natural gas pipeline service. These compressors use a direct inlet, overhung impeller and demonstrate flange-to-flange efficiencies to 90%. The PDI accommodates many drive configurations in standard package designs.
Features
Standard cast case:
Family of standard case sizes covers a wide range of flows and horsepowers
Standard components: Bearings, seal, shaft, head and instrumentation are standard for each
frame size
Rotor: No rotor assembly balance required for impeller change-out (component balanced)
Aerodynamic assembly: Impeller allows custom flow cuts for specified operating conditions
Life Cycle Cost Savings
Minimal spares inventory: Requires one tandem gas seal
Minimal capital expenditures for turn-arounds and revamps: Mono head simplifies disassembly and re-assembly
Energy cost savings:
Flange-to-flange efficiencies to 90%
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