Pipeline Compressors + Boosters

Dresser-Rand offers pipeline booster products for the gas transmission industry, continuously offering various technological advancements.

Dresser-Rand pipeline compressors are well known for their superior mechanical stability through a wide range of speeds, allowing higher aerodynamic performance and prolonged run times. The DATUM® C centrifugal compressor is an integrated, electric motor-driven compressor designed for natural gas pipeline and process gas applications. The DATUM P centrifugal compressor was developed for easy maintenance, its modular bundle allows for rapid change-out of rotating elements in one cartridge-style assembly.

DATUM C and DATUM P Models Chart

Model Frame Size Flange Size
max. in (mm)
Case Rating
max. psi (bars)
Capacity
max. acfm (cmh)
Number of impellers
max.
Frame Speed
max. rpm
DATUM C D8 20 (508) 5,000 (350) 13,000 (22,087) 6 16,000
DATUM P D8 20 (508) 3,000 (207) 13,000 (22,087) 5 16,000
DATUM C D10 20 (508) 5,000 (350) 18,000 (30,582) 6 14,000
DATUM P D10 20 (508) 3,000 (207) 18,000 (30,582) 5 14,000
DATUM C D12 24 (610) 5,000 (350) 24,000 (40,776) 6 12,000
DATUM P D12 24 (610) 3,000 (207) 24,000 (40,776) 5 12,000
DATUM C D14 30 (672) 5,000 (350) 32,000 (54,386) 6 10,000
DATUM P D14 30 (672) 3,000 (207) 32,000 (54,386) 5 10,000
DATUM C D16 36 (914) 5,000 (350) 43,000 (73,057) 6 9,000
DATUM P D16 36 (914) 3,000 (207) 43,000 (73,057) 5 9,000

Pipeline Direct Inlet (PDI) Compressor

The Dresser-Rand 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 percent. 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
    • 1,500 psig standard case pressure rating
    • Case accommodates either left-hand or right-hand discharge orientation
    • Can exceed piping load requirements of API 617, 6th and 7th Editions
  • Standard components
    • Bearings, seal, shaft, head, and instrumentation are standard for each frame size
    • Contributes to shorter manufacturing cycle times
  • Rotor
    • No rotor assembly balance required for impeller change-out (component balanced)
    • High rotor stability basis “stiff shaft” design which runs well below first critical
  • Aerodynamic assembly
    • Impeller allows custom flow cuts for specified operating conditions
    • Uses Dresser-Rand’s advanced noise attenuation technology (Duct Resonator Array)
    • Proven by extensive testing using highly accurate PTC 10 Type 2 closed loop testing

Life Cycle Cost Savings

  • Minimal spares inventory
    • Requires one tandem gas seal
    • Fewer wearing parts
  • Minimal capital expenditures for turnarounds and revamps
    • Mono head simplifies disassembly and re-assembly
    • Aero revamp replaces five major components: inlet ring; impeller nut; impeller; impeller labyrinths; and diffuser assembly
    • Full tear-down unnecessary for revamps
    • Above features result in maximum availability
  • Energy cost savings
    • Flange-to-flange efficiencies to 90 percent
    • Minimal inlet losses