FENDY Jinkaiwei process piston and diaphragm compressors, Changshu

FENDY Jinkaiwei (Suzhou) Compressor Co., Ltd. machines process-gas compressors at the Collaborative Innovation Industrial Park, 130 Yinhe Road, Southeast Development Zone, Changshu. The official English site is a process-gas page, not a factory-air catalogue. It states more than thirty product series spanning process piston and diaphragm machines for hydrogen energy, photovoltaic and semiconductor (polysilicon / organosilicon), fluorochemicals, nuclear, military and petroleum / petrochemical service. This desk publishes three series: FKW-PISTON, FKW-DIAPHRAGM and FKW-HRS.

The piston block on the homepage is a positive-displacement process machine. Published figures a buyer can read: discharge pressure up to 25 MPa, piston force 25–800 kN, 300–1000 rpm, one to six stages, more than sixty models in M, D, L and P types, and a claim that the line meets API 618. Those numbers are a published band. They are not a single SKU. If the contract needs API 618 as a numbered edition, write the edition on the RFQ and let Changshu attach the paper.

The diaphragm block is the oil-free, zero-leakage story: ultra-pure gas (the page prints 99.999%), piston force up to 250 kN, flow to 4000 Nm³/h, and extreme pressures of 90 MPa, 250 MPa and 320 MPa. The company profile repeats first-in-China claims for a 90 MPa large-displacement hydrogen-refuelling diaphragm, a 250 MPa and a 320 MPa ultra-high-pressure diaphragm, and authorship of two Chinese technical specifications for diaphragm hydrogen compressors at refuelling stations. FKW-DIAPHRAGM is that architecture. FKW-HRS is the hydrogen-value-chain row — production, filling systems and station compressors — which the homepage also lists as a dedicated hydrogen-compressor tile.

High-speed M/D frames and a separate ultra-high-pressure diaphragm tile appear on the same homepage. They are mentioned here so a buyer does not think the works hides them. They are not extra catalogue SKUs. A high-speed process piston still sits in FKW-PISTON. A 320 MPa diaphragm still sits in FKW-DIAPHRAGM.

Quality copy on the company-profile page states production control to ISO 9001, a digital on-line test platform, and chemical, metallographic, mechanical and NDT methods. ISO 14001, ISO 45001, CE and ASME are not printed on the pages used for this file, so they stay off the facts line. The 2022 Beijing Winter Olympics hydrogen-compressor note and the China Petroleum & Petrochemical Hydrogen Compressor Technology R&D Centre line are public claims, not a substitute for a data sheet.

Changshu Southeast is a process-gas park, not a Suzhou screw cluster. Hydrogen filling at 90 MPa and a 25 MPa process piston are different cylinders, different seals and different hazardous-area files. Write the filling pressure or the process discharge, not “hydrogen compressor.” Photovoltaic polysilicon and fluorochemical duties on the company profile need a materials list for the gas; this desk will not invent one.

A high-speed compressor tile on the same homepage describes compact M/D frames with one to four stages for petrochemical, hydrogen and metallurgy. Treat that as a process-piston conversation unless Changshu writes a different series on the quote. Ultra-high-pressure diaphragm copy that repeats 320 MPa for hydrogen, nuclear, defence and aerospace is still FKW-DIAPHRAGM. Do not invent a fourth SKU called “ultra-high-pressure” because the homepage used a fifth tile.

The plant remains the seller. Send gas, pressure, flow and which barrier you mean. Changshu quotes.