Send your service conditions — medium, pressure, temperature, flow and any constraints — and our engineers will reply with a sizing-verified proposal.

The installer and licence code for Zhiheng Valve Selection System come from an engineer directly; free to use for the first 30 days
When you need a new code, send the machine-code string you copy from inside the software. Service and sizing questions go to the same contact — or send one valve’s parameters and try it on a single case first.
On mobile: long-press the code to recognise and add
Please attach your datasheet or valve tag list if available — it speeds up the sizing review.

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Import-substitution technical content, linked with the Wenfa Mini Program.
上海大成特种控制阀有限公司
Shanghai, China
WeCom · Zhiheng sizing system

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Installer and licence code sent one to one; free for the first 30 days
What it calculates, how to get it →