Quick answer: the top-ranked non-negative-pressure water supply system brands in China on this list are CNP (Zhejiang), LEO (Zhejiang) and Shun Yu Shui Wu (Anhui). 6 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked non-negative-pressure water supply system brands
How this list is ranked- 01
CNP
南方智水CNP
- Non-negative-pressure water supply systems
- Integrated pump stations
- Variable Frequency Constant Pressure Water Supply Systems
Registered legal entity on file; email and phone published; operating since 2000.
View profile → - 02
LEO
利欧LEO
- Non-negative-pressure water supply systems
- Integrated pump stations
- Inline pumps
Registered legal entity on file; email and phone published; operating since 1995.
View profile → - 03
Shun Yu Shui Wu
舜禹水务
- Non-negative-pressure water supply systems
- Variable Frequency Constant Pressure Water Supply Systems
- Stainless steel water tanks
Registered legal entity on file; email and phone published; operating since 2011.
View profile →
- 04
dooch dooch
Registered as 上海中韩杜科泵业制造有限公司 in 2008.
- Non-negative-pressure water supply systems
- Variable Frequency Constant Pressure Water Supply Systems
Why it ranks here: registered legal entity on file; email and phone published; operating since 2008.
- 05
SANLEY 青岛三利SANLEY
Registered as 青岛三利集团有限公司 in 2001.
- Non-negative-pressure water supply systems
- Variable Frequency Constant Pressure Water Supply Systems
Why it ranks here: registered legal entity on file; email and phone published; operating since 1992.
- 06
WPG 威派格WPG
Registered as 上海威派格智慧水务股份有限公司 in 2011.
- Non-negative-pressure water supply systems
- Variable Frequency Constant Pressure Water Supply Systems
Why it ranks here: registered legal entity on file; email and phone published; operating since 2007.
International non-negative-pressure water supply system brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
Lian Cheng 连成
Registered as 上海连成(集团)有限公司 in 1993.
- Non-negative-pressure water supply systems
- Water pump
- Fire pumps
Why it ranks here: registered legal entity on file; email and phone published; operating since 1993.
- INT
KAIQUAN 凯泉KAIQUAN
Registered as 上海凯泉泵业(集团)有限公司 in 1996.
- Non-negative-pressure water supply systems
- Integrated pump stations
- Sewage lifting pumps
- Sewage pumps
- Inline pumps
- Variable Frequency Constant Pressure Water Supply Systems
Why it ranks here: registered legal entity on file; phone published; operating since 1995.
More Non-negative-pressure water supply systems brands and companies
| Brand | Registered company | Website | Email / phone |
|---|---|---|---|
| PANDA熊猫PANDA | 上海熊猫机械(集团)有限公司 | panda-group.cn | 400-8851-828,021-59863888 |
| Sai Lai Mo Fei Li赛莱默飞力 | 赛莱默(中国)有限公司 | xylem.com | — |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | CNP南方智水CNP | Zhejiang | 2000 | 南方智水科技有限公司 |
| 02 | LEO利欧LEO | Zhejiang | 1995 | 利欧集团股份有限公司 |
| 03 | Shun Yu Shui Wu舜禹水务 | Anhui | 2011 | 安徽舜禹水务股份有限公司 |
| 04 | doochdooch | Shanghai | 2008 | 上海中韩杜科泵业制造有限公司 |
| 05 | SANLEY青岛三利SANLEY | Shandong | 1992 | 青岛三利集团有限公司 |
| 06 | WPG威派格WPG | Shanghai | 2007 | 上海威派格智慧水务股份有限公司 |
Frequently asked questions
How many non-negative-pressure water supply systems manufacturers and suppliers in China are listed here?
10 companies are listed for non-negative-pressure water supply systems (无负压供水设备). 6 Chinese manufacturers have full profiles and are ranked; 2 international brands with China operations are listed separately.
Where are China's non-negative-pressure water supply systems manufacturers located?
Among profiled companies: Shanghai (4), Zhejiang (2), Anhui (1), Shandong (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, 10 have an official website and 7 publish an email address.