Independent machinery sourcing · Handover

centrifugal compressor

Centrifugal Compressor Sourcing is an independent sourcing partner. Share gas or air service, inlet temperature and pressure, required discharge pressure, quantity and destination so factory wholesale quotes can be compared. We do not manufacture compressors or hold maker authorization.

Request Factory Quotes Centrifugal compressor skid in a plant compressor house during a replacement survey

Replacement versus new installation

Use this band when an existing centrifugal compressor is being swapped. A new-site package still needs the same envelope, utility, and operator checks, but the existing header is no longer the constraint.

Existing process

Volumetric flow quoted in m³/min or cfm is meaningless until the bidder states the inlet temperature, inlet pressure, and gas molecular weight used for that figure. Nominal power in kW or hp must sit next to the same duty, not a family range endpoint.

Ask every bidder to keep inlet conditions, discharge pressure, and measured package power on one comparison row so a replacement does not inherit an unmatched duty.

What stays open until a centrifugal compressor supplier answers

Known input
Buyer states gas or plant air service, required discharge pressure, expected normal/min/peak flow, site altitude, and cooling-water availability. Those inputs define the RFQ; they are not a published performance curve.
Supplier confirmation
Bidder restates volumetric flow at the buyer inlet condition, names auxiliaries inside measured package power, and explains control at minimum plant demand (inlet guide vanes, blow-off, recycle, or unload).

Which costs belong on a comparable centrifugal compressor quote?

Which procurement scope is covered by centrifugal compressor?

Machine

Compressor, driver, coupling, lube or dry-gas seal support if offered, local panel, and the skid as drawn. Working pressure and flow rate stay paired with inlet conditions.

Delivery

Packing, inland haul, export crate, destination Incoterms, and insurance. Transit vibration limits and preservation of the rotor should be named, not assumed.

Site

Foundations, cooling-water piping, three-phase supply, compressed air demand for instruments, installation, training, and spare parts. These lines often sit outside the machine price.

No numerical saving claim without comparable quotations.
What inlet conditions define the quoted volumetric flow?

Every flow figure must cite inlet temperature, inlet pressure, and gas. Comparing one bidder’s cfm at a sea-level inlet with another bidder’s m³/min at a hot, high-altitude inlet is not a like-for-like review. Ask for the same duty cycle: minimum, normal, and peak plant demand.

Request factory quotes with a split scope

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