Quick answer: the top-ranked diaphragm valve brands in China on this list are FITOK (Hubei), DONJOY (Zhejiang) and NVD (Tianjin). 4 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked diaphragm valve brands
How this list is ranked- 01
FITOK
FITOK
- Diaphragm valves
- Compression fittings
- Needle valves
Registered legal entity on file; email and phone published; operating since 1998.
View profile → - 02
DONJOY
东正DONJOY
- Diaphragm valves
Registered legal entity on file; email and phone published; operating since 1993.
View profile → - 03
NVD
NVD
- Diaphragm valves
Registered legal entity on file; email and phone published; operating since 1955.
View profile →
- 04
Xin Lai Ying Cai 新莱应材
Registered as 昆山新莱洁净应用材料股份有限公司 in 2000.
- Diaphragm valves
Why it ranks here: registered legal entity on file; email and phone published; operating since 1991.
International diaphragm valve brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
CRANE CRANE克瑞
Registered as 克瑞国际商贸(北京)有限公司 in 2007.
- Diaphragm valves
- Imported valves
- Plug valves
Why it ranks here: registered legal entity on file; email and phone published; operating since 1949.
- INT
Parker Parker派克
Registered as 派克汉尼汾流体传动产品(上海)有限公司 in 1996.
- Diaphragm valves
- Sealing rings
- Thermal Grease
- Pneumatic components
- Mold Release Agents
- Filters
Why it ranks here: registered legal entity on file; email and phone published; operating since 1917.
- INT
Swagelok Swagelok世伟洛克
Registered as 世伟洛克(上海)流体系统科技有限公司 in 1997.
- Diaphragm valves
- Compression fittings
- Pipe benders
- Needle valves
- Instrumentation valves
Why it ranks here: registered legal entity on file; email and phone published; operating since 1947.
- INT
GEMUE GEMUE盖米阀门
Registered as 盖米阀门(中国)有限公司 in 2000.
- Diaphragm valves
- Imported valves
Why it ranks here: registered legal entity on file; email and phone published; operating since 1964.
- INT
rkert Bürkert
Registered as 宝帝流体控制系统(上海)有限公司 in 2003.
- Diaphragm valves
Why it ranks here: registered legal entity on file; email and phone published; operating since 1946.
More Diaphragm valves brands and companies
| Brand | Registered company | Website |
|---|---|---|
| KITZ SCTKITZ SCT | 开滋精密机械(昆山)有限公司 | — |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | FITOKFITOK | Hubei | 1998 | 武汉市飞托克实业有限公司 |
| 02 | DONJOY东正DONJOY | Zhejiang | 1993 | 东正科技有限公司 |
| 03 | NVDNVD | Tianjin | 1955 | 天津泰雅阀门有限公司 |
| 04 | Xin Lai Ying Cai新莱应材 | Jiangsu | 1991 | 昆山新莱洁净应用材料股份有限公司 |
Frequently asked questions
How many diaphragm valves manufacturers and suppliers in China are listed here?
10 companies are listed for diaphragm valves (隔膜阀). 4 Chinese manufacturers have full profiles and are ranked; 5 international brands with China operations are listed separately.
Where are China's diaphragm valves manufacturers located?
Among profiled companies: Shanghai (4), Hubei (1), Zhejiang (1), Tianjin (1), Jiangsu (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 9 have an official website and 9 publish an email address.