Zhongding Hengsheng G0–G5 diaphragm compressors, Wuhu

Zhongding Hengsheng Gas Equipment (Wuhu) Co., Ltd. publishes from 36 Ouyanghu Road in the Wuhu Economic and Technological Development Zone. The official English site states a single mission: be the best diaphragm compressor. The main business is research, production and sales of diaphragm compressors and their core components, with complete machines as the main sale. Application tiles a buyer can open are special-gas filling, petrochemical, hydrogen refuelling stations, fine chemicals, and military / nuclear service. Factory oil-injected screw is not on that list.

The homepage names six series: G0, G1, G2, G3, G4 and G5. This desk publishes three catalogue rows that follow that public split: ZDHS-G0-G2, ZDHS-G3-G4 and ZDHS-G5. We do not invent a kW, a bar or an Nm³/h for a series that the product tiles do not quantify on the pages used for this file. Frame size, piston force and the number of stages stay on the RFQ. Extra site families — if a later page names a GD4 heritage frame or a station skid — stay in body prose, not as a fourth SKU.

The about page dates the company to 2008 and prints a registered capital of 89.11 million yuan. It records a 2018 high-tech-enterprise certificate, a 2021 Anhui first-set recognition for a large-volume-flow hydrogen-filling diaphragm, national “little giant” status in 2023, and CE certification for export to the European Union on the 2018 timeline. CE is therefore a public claim. This listing will not invent a certificate number or an ASME stamp. If the PO needs the CE scan, ask Wuhu for the scan.

The same about page describes a Wuhu hydrogen-diaphragm project: 104 mu, 46,000 m² of construction, five steel workshops totalling 28,000 m², a 4,000 m² hydrogen energy test centre that can run ten machines at once on hydrogen, a 10,000 m² R&D centre, and a rooftop 2.4 MW photovoltaic array. Those figures describe the works a buyer can inspect. They are not a substitute for a gas data sheet.

Diaphragm compression is a barrier story. The process gas stays on one side of a metal diaphragm; the hydraulic oil stays on the other. That is why electronic special gas and hydrogen filling show up on the application list, and why an 8 bar workshop screw RFQ wastes a week. State the gas, the leak specification, the discharge pressure and whether you are buying a complete skid or a core.

Wuhu Economic Development Zone is a hydrogen-equipment park on the official about page, not a trading warehouse. A buyer who needs a G5 large diaphragm and a G0 laboratory frame should write two duty blocks. They do not share a test stand booking or a crate. Core-component sales — hydraulic oil systems, cylinder heads, diaphragms — are a spare-parts conversation. Say core or complete machine.

Application copy on the homepage splits industrial gas into bulk gas and special gas, then special gas into high-purity, standard and electronic grades. That split is why an electronic-gas filling RFQ and a hydrogen-station RFQ do not share a materials list even when both sit on a G-series frame. Write the gas grade. Petrochemical and fine-chemical tiles are process jobs with different impurity and seal stories. Military and nuclear tiles are still diaphragm machines; they need a specification, not a slogan.

The plant remains the seller. Sinopec Capital and Sany appear on the financing timeline; they do not become the packing-list name. Zhongding Hengsheng quotes from Wuhu.