Quick answer: the top-ranked variable frequency constant 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 variable frequency constant pressure water supply system brands
How this list is ranked- 01
CNP
南方智水CNP
- Variable Frequency Constant Pressure Water Supply Systems
- Integrated pump stations
- Medical Wastewater Treatment Equipment
Registered legal entity on file; email and phone published; operating since 2000.
View profile → - 02
LEO
利欧LEO
- Variable Frequency Constant 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
- Variable Frequency Constant Pressure Water Supply Systems
- Non-negative-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.
- Variable Frequency Constant Pressure Water Supply Systems
- Non-negative-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.
- Variable Frequency Constant Pressure Water Supply Systems
- Non-negative-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.
- Variable Frequency Constant Pressure Water Supply Systems
- Non-negative-pressure water supply systems
Why it ranks here: registered legal entity on file; email and phone published; operating since 2007.
International variable frequency constant 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
KAIQUAN 凯泉KAIQUAN
Registered as 上海凯泉泵业(集团)有限公司 in 1996.
- Variable Frequency Constant Pressure Water Supply Systems
- Integrated pump stations
- Sewage lifting pumps
- Sewage pumps
- Inline pumps
- Non-negative-pressure water supply systems
Why it ranks here: registered legal entity on file; phone published; operating since 1995.
- INT
FLANGCO FLANGCO
Registered as 富兰克水务(集团)有限公司 in 2018.
- Variable Frequency Constant Pressure Water Supply Systems
Why it ranks here: registered legal entity on file; email and phone published.
More Variable Frequency Constant 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 variable frequency constant pressure water supply systems manufacturers and suppliers in China are listed here?
10 companies are listed for variable frequency constant pressure water supply systems (变频恒压供水设备). 6 Chinese manufacturers have full profiles and are ranked; 2 international brands with China operations are listed separately.
Where are China's variable frequency constant pressure water supply systems manufacturers located?
Among profiled companies: Shanghai (3), Zhejiang (2), Anhui (1), Shandong (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, 10 have an official website and 7 publish an email address.