Dry Gas Seal Booster Systems

The use of dry gas mechanical shaft seals in centrifugal compressors has increased dramatically in the past 25 years. Preventing contamination of the gas used by these seals is necessary to assure long life. Gas Compression Systems dry gas seal pressure boosters ensure that gas quality is maintained during startup, settle-out and pressurized hold conditions.

    • No Electricity Required – Powered by Instrument Air
    • Models conform to CE ATEX Explosion-proof requirements
    • Wetted parts conform to NACE MR0175 & MR0103
    • Designed in accordance with ASME Section VIII, Division and CE PED
    • Distance piece design prevents mixing of the gas and drive air
    • Dynamic seals are filled Teflon and require no lubrication
    • 2500+ hour operating life with no maintenance required
    • Suitable for continuous operation

Compare Models

Air-Driven 440 Series 434 Series 430 Series
lcb 440-large 434_alum-large “430_50bar” 434-ss-large 430-ext-552-large
Pressure & Flowrate
Pressure Rating
8.5 MPa
(1230 psi)
9 MPa
(1305 psi)
20 MPa
(2900 psi)
5 MPa
(725 psi)
28 MPa
(4060 psi)
55.2 MPa
(8000 psi)
Maximum Flowrate
(actual displacement)
172 lpm
(6.1 ACFM)
172 lpm
(6.1 ACFM)
121 lpm
(4.3 ACFM)
95 lpm
(3.3 ACFM)
95 lpm
(3.3 ACFM)
95 lpm
(3.3 ACFM)
 Specifications Brochure Brochure Brochure Brochure Brochure Brochure

How to choose a booster

The following specifications are needed to determine the best GCS dry gas seal pressure booster for a given application:

  • Maximum Design Pressure >>
  • Flow Rate >>
  • Gas Composition >>
  • Temperature Ranges >>
  • Drive Material >>
  • Drive Air Pressure Available >>
  • Conformity to Certifications >>