Shaangu ASU and process centrifugal trains, Xi'an

Shaanxi Blower (Xi’an Shaangu Power Co., Ltd.) is an energy-equipment OEM whose public site leads with system solutions — energy-conversion equipment, energy-infrastructure operations and industrial service — not with a workshop air package. The English listing is built from the official centrifugal-compressor introduction that a buyer can open: E-series horizontally split, EIZ/EIZT internally cooled, and EB barrel. Those three casings are the rows on this desk. Factory 8 bar permanent-magnet VSD air is a different industry.

The E series is published as a single-section, high-speed, two-bearing, horizontally split machine for air, natural gas, nitric oxide and other process gases in petroleum, chemical, metallurgy and pharmaceutical plants. The official page names thirteen frame sizes: 28, 35, 45, 56, 63, 71, 80, 90, 100, 112, 125, 140 and 160. Drive is through a gearbox from a motor, or direct from a high-speed turbine or motor. Those frame numbers are a published series, not a single nameplate we invented. Pressure ratio and efficiency stay on the process data sheet.

EIZ and EIZT are the internally cooled family for large air-separation units: single suction, multi-stage, high-speed, two-bearing, with coolers between stages. The page states a short gas path, isothermal efficiency as the design aim, inlet-guide-vane control over 75–105% of design flow, an on-line impeller water-wash, and an integrated separator with automatic drain. Fourteen frames in two kinds are named. The development note credits Shaangu’s European R&D company together with the domestic team. That is an ASU conversation. It is not a dry-screw Class 0 RFQ.

EB is the barrel (barrel-type, cylinder) casing published for recycle hydrogen and other high-pressure, toxic or flammable media in petrochemical service. The outer cylinder is integral. The inner cylinder has a horizontal joint. Rotor and inner stator can be withdrawn for overhaul without dismantling the process pipe. Eleven frames are named. Recycle-hydrogen EB28–EB125 in the buyer’s own language is exactly this family — confirm the frame on the RFQ. Do not send a food-grade oil-free screw duty to this desk.

The same official page also lists EZ (split with intercooler), ES (split with sidestreams, down to −150 °C for propylene and ethylene), ED, EG single-stage overhung, EG multi-shaft (including a PTA machine that the page says won a national science-and-technology prize), EGV vapour compressors for MVR, plus axial blast sets, LNG trains, long-distance gas-pipeline sets and expanders. They are real Shaangu products. They are not extra catalogue SKUs here.

Axial machines on the same official introduction — blast-furnace electric-drive axials, BPRT / STRT / BCSG / SHRT / BCRT energy-recovery trains, FCC main-air sets and nitric-acid four-in-one trains — are Shaangu’s other public job. They are not catalogue SKUs on this compressor desk. If the RFQ is a blast-furnace blower, write axial and the furnace volume. If it is recycle hydrogen, write EB and the loop.

The homepage contact block prints 8 Fenghui South Road, Xi’an High-tech Zone, a 400 service line and a postcode. Inspection window, FOB port and which Shaangu works builds the train stay on the quotation. Six national science-and-technology prizes, 177 provincial prizes and “more than 1,000 valid patents” are homepage counts. They are not rewritten as ISO 8573 class or ASME stamps. The plant remains the seller.