
Changmao Valve Group Co., Ltd.
Manufacturer昌茂阀门集团有限公司
Changmao Valve Group manufactures flexible rubber joints for vibration and displacement compensation, pipeline compensation joints for thermal expansion absorption, stainless steel expansion
Changmao Valve Group Co., Ltd. is a Chinese manufacturer based in Gongyi, active in pipe fittings & valves. This independent FactoryBase dossier is compiled by FactoryBase's AI from public business-registry records and the company's official website — not self-submitted. Registered capital: CNY 108.00M (≈ $15.10M).
Key signals
≈ $15.10M
Export readiness
Mixed · 68/100
Homepage as rendered on 2026-07-25 — click to open the live site.
average across 155 audited Pipe Fittings & Valves suppliers
- No HTTPS in 2026
What does this grade mean?
The website is the front door a buyer actually meets. We score it precisely and reproducibly — a fixable read of a factory’s digital operations, not a verdict on the company. Weak digital ops track with slow replies and thin documentation; a strong score is a signal you can act on. Method ↗
Data source: FactoryBase AI site audit · swept 2026-07-23
Company registry
Public business records- Registered capital
- CNY 108.00M
≈ $15.10M - Legal representative
- 赵长茂
- Operating status
- active
- Affiliated companies
- 0
excluding hazardous chemicals
Unified social credit code: 914101815860075163
Products
6 photos from the company siteChangmao Valve Group manufactures flexible rubber joints for vibration and displacement compensation, pipeline compensation joints for thermal expansion absorption, stainless steel expansion bellows and metal expansion joints for axial and lateral movement, rubber soft joints, power transmission joints, ball joints and large deflection compensators, pipe line expansion joints, metal bellows joints, flanges, and related valves including gate, globe, check, butterfly, and ball valves. All products are produced to national GB/T, ministerial JB/HG, European EN, German DIN, British BS, American ANSI/ASME/AWWA, ISO, Japanese JIS, Korean KS, Italian UNI, Australian AS, and South African SABS standards.






Data source: Company websitecompany-published· swept 2026-07-25
Capabilities
- Export markets
- Korea, Japan, Spain, United Kingdom, Germany, Vietnam, Singapore, Malaysia, Dubai, Brazilcompany-stated
Self-declared credentials stay marked claimed until independently checked (e.g. ISO number cross-checked against IAF CertSearch).
Contacts
- Official site
- changmao.com.cn ↗
- Marketplace
- None found
- Other sites
- changmaovalve.com(English) ↗
- [email protected] · [email protected] · [email protected]Deliverable ✓
- Phone
- 0371-64031052 · 400-6596-315 · 0371-64031768 · 0371-64031380
- +8613816179299
Gongyi, China
Data source: Company website · swept 2026-07-25
Send an inquiry
free for buyers · no accountWe forward your request to Changmao Valve Group Co., Ltd. through the contacts on record, usually within one business day. Replies come to you directly.
Category ranking
Pipe Fittings & ValvesWeb-presence grading is rolling out across this category (155/187 graded so far). See the full Pipe Fittings & Valves ranking ↗
Data source: FactoryBase category index · 187 profiled suppliers
Similar suppliers
Pipe Fittings & ValvesOther suppliers profiled in the same category — compare before you commit.
Shanghai RELIABLE International Trade Co., Ltd.Trading company · Shanghai
Guangdong Foster Fluid Technology Co., Ltd.Manufacturer · Foshan
Shaanxi Jiade Import And Export Co., LtdTrading company · Xi'an
Hebei Runnong Water-saving Technology Co., Ltd.Manufacturer · Tangshan
Taizhou Luqiao Xinfa Pipe Co., Ltd.Manufacturer · TaizhouZhejiang Chixin Industrial Co., Ltd.Manufacturer · TaizhouData source: FactoryBase category index
Frequently asked questions
- Is Changmao Valve Group Co., Ltd. a factory I can order from directly?
- It is profiled as a manufacturer based on its registered business scope, which covers production of pipeline expansion joints along with sales of related joints, bellows, valves, and fittings. The company is listed as active, founded on 2011-11-07, and registered in Gongyi, Henan Province, with no affiliated companies recorded.
- What products does Changmao Valve Group describe itself as making?
- The company describes manufacturing flexible rubber joints for vibration and displacement compensation, pipeline compensation joints, stainless steel expansion bellows and metal expansion joints, rubber soft joints, ball joints, large deflection compensators, flanges, and valves including gate, globe, check, butterfly, and ball types. It states these follow standards such as GB/T, EN, DIN, BS, ANSI/ASME/AWWA, ISO, JIS, KS, and others.
- What export markets does Changmao Valve Group claim?
- The company states its markets include Korea, Japan, Spain, the United Kingdom, Germany, Vietnam, Singapore, Malaysia, Dubai, and Brazil. Independent customs or shipment (bill of lading) records, export volumes, and named buyers are not yet verified.
- What certifications and awards does the company state it holds?
- Changmao Valve Group states it has CE certification and is a drafting unit for T/ACCEM 849-2026 on wall-penetrating embedded casings. Company-stated awards and roles also include a TS special equipment production license, AAA-level credit and contract-honoring enterprise status, Two-in-One fusion management system certification, and drafting unit roles for T/ACCEM standards on flexible rubber joints, pipeline compensation joints, and metal bellows expansion joints.
- What should a buyer watch out for?
- The company website does not use HTTPS. Buyers should also note that independent customs and shipment records remain not yet verified.
- How does Changmao Valve Group compare in size and age to other Pipe Fittings & Valves suppliers in China?
- Its registered capital of CNY 108.00M (approx US$15.10M) is higher than 90% of peers, placing it among the larger suppliers by capital in the category of 187. Founded in 2011, it is older than 31% of other Pipe Fittings & Valves suppliers in China, so it sits toward the more recently established side of the peer group.
- What's the bottom line for a buyer considering Changmao Valve Group Co., Ltd.?
- It is an active manufacturer (from registered business scope) of pipeline expansion joints and related products, with registered capital among the higher end of other Pipe Fittings & Valves suppliers in China and an operating history since 2011. Export markets, certifications, and awards are company-stated only; customs records and export volumes are not yet verified, and the website lacks HTTPS, so direct verification of claims is advisable before ordering.
- What is Changmao Valve Group Co., Ltd.'s unified social credit code (统一社会信用代码)?
- Changmao Valve Group Co., Ltd. (昌茂阀门集团有限公司) is registered in China under unified social credit code 914101815860075163. This 18-character code is the company's unique national business identifier — use it to cross-check the entity on China's public registry portals, or with the Gongyi market regulation authority.
- How was this profile built — can I trust it?
- Yes — it is compiled independently by our AI from dated, public evidence: business registries (via grok), an automated website audit, and Changmao Valve Group Co., Ltd.'s own site — not from anything the company submitted. Where Changmao Valve Group Co., Ltd. states something about itself, we show it beside the public record, so you are reading sourced facts, not marketing.
Source: cantonfair-2026-hardware · profile confidence — · last sweep 2026-07-25. Independent profile assembled from public evidence; nothing submitted by the company. Export & customs records not yet swept.