Xi'an Lianhu
Compare the AV/A axial series with E, EIZ/EIZT and EB centrifugal arrangements, then define gas duty, interfaces and service.
西安陕鼓动力股份有限公司 · XI’AN SHAANGU POWER
The listed company’s official profile dates its establishment to June 1999 and Shanghai Stock Exchange listing to 28 April 2010, code 601369. The group’s 1968 origins are distinct from the listed entity’s incorporation.
The 2025 annual report, disclosed April 2026, confirms the legal identity and stock code. It describes equipment, energy operation and industrial services; disclosure is not certification of a selected compressor.
CONSTRUCTION → PROCESS INTERFACE → OFFERED DUTY
High-speed, two-bearing construction described as one compression section. E sizes run through 28, 35, 45, 56, 63, 71, 80, 90, 100, 112, 125, 140 and 160.
Geared motor or suitable direct high-speed motor/steam-turbine drive. Size numbers are not power, pressure or flow ratings.
For the offered air, natural-gas or chemical-gas duty, agree composition, materials, seals and the actual performance map.
Review the E process enquiry →
Single-suction, multistage, high-speed, two-bearing construction with internal interstage coolers. Published features include inlet guide vanes, water washing, gas/water separation and automatic drains.
The advertised 75–105% variable-duty range is manufacturer family wording, not a model-specific surge map or guaranteed minimum at all pressures.
Define main feed air or booster duty, cooler/wash utilities, treatment and the process-licensor interface.
Review the internally cooled train →
One-piece outer barrel and horizontally split inner casing; single-suction, multistage, high-speed, two-bearing arrangement. The recycle-hydrogen page identifies EB28–EB125.
The rotor/inner assembly may be withdrawn without removing process piping. Obtain an extraction and lifting layout; the feature does not eliminate isolation or clearance.
Agree hydrogen-mixture composition, seal/support arrangement, vent boundary, driver and actual operating cases.
Review recycle-hydrogen supply →AXIAL-FLOW COMPRESSORS
Shaangu's official product pages also describe an axial-compressor line, separate from the three centrifugal arrangements above. It has two series: AV, with adjustable stator vanes, and A, with fixed stator vanes. Within each series the model number is the rotor hub diameter. The published range for the line is 2 to 22 stages and a pressure ratio of 1.2 to 9.
| Series | Stator vanes | Model sizes |
|---|---|---|
| AV | Adjustable | AV40, AV45, AV50, AV56, AV63, AV71, AV80, AV90, AV100, AV112, AV125, AV140 |
| A | Fixed | A40, A45, A50, A56, A63, A71, A80, A90, A100, A112 |
Listed applications include blast-furnace blowing, including blowers combined on one train with blast-furnace top-pressure or sinter waste-heat energy-recovery turbines (BPRT, STRT, SHRT, BCRT) or with steam-turbine generation (BCSG); FCC main air blowers; nitric-acid, sulphuric-acid and PTA air duties; propane-dehydrogenation regeneration-gas compression; pharmaceutical air; and exhaust compression for test stands and wind tunnels.
A model size is not a duty, and the stage and pressure-ratio figures are limits for the whole line, not values for one machine. For an axial enquiry, give the inlet volume flow and conditions, the discharge pressure, the operating envelope and surge-control requirement, the driver (motor, steam turbine or a shared shaft with an energy-recovery turbine) and the plant interfaces. Checked against Shaangu's official axial-compressor overview on 30 October 2026.
PLANT OUTPUT IS NOT COMPRESSOR DELIVERED FLOW
| Source context | Published measurement | What the compressor offer still needs |
|---|---|---|
| Air separation | 10,000–150,000 Nm³/h oxygen-production scale across solutions. | Actual feed/booster-air flow, inlet/discharge conditions and selected train map. |
| LNG / EBZ | Natural-gas plant treatment volume per day; a separate refrigerant-compressor family. | Refrigerant composition and compressor operating cases. Not a rating for EB hydrogen service. |
| E, EIZ/EIZT, EB | Family construction and size identifiers; no universal kW/flow/pressure table established. | Selected-model duty, speed, input, capacity reference and test/acceptance basis. |
EBZ intermediate-cooled barrel equipment and E-series neighbouring constructions are separate selections. Do not transfer an LNG scale, another family’s cooling feature or a historical test claim to the existing product.
Composition and range, suction temperature, absolute/gauge pressure convention, normal/minimum/maximum reference flow, receiving pressure, contaminants and transient duties.
Performance map, absorbed and driver/package input, speed, gearbox/direct-drive scope, operating/surge envelope, protection and interlock responsibility.
Seals/support, venting, lubrication and cooling, P&ID, nozzle/foundation loads, casing/rotor extraction, lifting and actual maintenance access.
Agreed performance/mechanical tests, manuals, commissioning, parts, warranty start/exclusions and destination service. Remote monitoring needs an agreed data and responsibility boundary.
No. The ASU production scale and compressor feed/booster flow are different process quantities. Obtain the licensor’s actual air cases and selected map.
No. It is published family-level regulation wording. The offered train needs pressure-dependent performance and protection/control limits.
No. Withdrawal without disconnecting process piping still requires isolation, lifting/support and the actual removal-clearance layout.
Select E, EIZ/EIZT or EB, with composition, reference flow, pressure/temperature cases, driver and utility conditions.
Prepare a Shaangu project RFQSpecification pages
| Duty | Write on the RFQ |
|---|---|
| Compressor for wastewater treatment | Most aeration trains want low-pressure blowers. If this RFQ is actually 7–8 bar plant air for valves and instruments, say so — it is a different machine from a maglev blower. |
| Centrifugal compressor manufacturers in China | Centrifugal machines are duty-built. A 250 kW “centrifugal compressor China” RFQ without gas, suction and discharge pressure cannot be quoted. |
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
Shaangu: Compare the AV/A axial series with E, EIZ/EIZT and EB centrifugal arrangements, then define gas duty, interfaces and service.
Open RFQ