Flowmethod announced that its gas mass flow products had received CPA type approval following the applicable evaluation. This is the company's historical certification announcement dated 18 July 2022, not a statement that every present or future configuration is covered by one certificate.
CPA relates to Chinese measuring-instrument type approval. The announcement describes environmental, electromagnetic-compatibility and metrological evaluation as part of the approval process. It reports that the assessed flow products met the relevant requirements after evaluation by the Guangdong market-regulation authority.
The company regards the approval as both recognition of product performance and a reason to maintain quality control and service standards. For procurement, refer to the actual certificate and its listed models, scope, identifying information and applicable validity conditions. Confirm any certification requirement for the exact ordered configuration.


Product and application offering described in the announcement
The archive describes configurations ranging from 1 SCCM at the low-flow end to 1000 SLPM at the high-flow end, and pressure options up to 10 MPa, with different temperature and gas-compatibility arrangements. These values describe a portfolio, not a single instrument that covers every condition.
Interface options include 0–5 V / 4–20 mA, RS485 / Modbus communication, and integrated local LCD operation on suitable controller models. Stainless-steel construction still requires confirmation of seals and all wetted materials for the actual gas. A meter provides readings without active flow-setting or valve-control functions.
The announcement also describes the company's experience developing gas mixing systems for research and institutional users. Consult the current model pages and the order specification for the supplied product's range, pressure, temperature, interfaces and calibration.
Flowmethod designs, develops, manufactures and supports gas mass flow controllers, meters and custom gas-control and mixing systems. Configurations are matched to the customer's process and operating requirements.
For selection, installation or technical enquiries, contact Flowmethod: Mr. Dou, +86 180 3818 3381; doufeijin@hotmail.com. See Contact for the full contact list.
