DC Low-Resistance 

Backflow Preventer

On Line Maintenance Type Low 

Resistance Backflow Preventer

Built in drainage type low resistancebackflow preventer

GS743X Type Flange ConnectionDC Type Water-removing Hammer Check Valve

Double Check Valve Backflow Preventer

YS713X Type Wire Port Connection Branch Pipe Adjustable Pressure Reducing Valve

YC13X Type Wire ConnectionDifferential Pressure Reducing Valve

Pressure-type air valve

Flange Type (Telescopic) Butterfly Valve

Turbo Butterfly Valve

Electric Butterfly Valve

Handle Wafer Type Butterfly Valve

FCs743x Type Flange-connected DC Electric Remote Control Float Valve

FS713X Type Wire Connection Hydraulic Balance Float Valve

GL41H TypeY-type Filter

Fs743x Type Flange Connection DC Remote Control Float Valve

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We are an innovative enterprise that integrates production and research and development. Our headquarters is located in Putuo District, Shanghai, with factories in Shanghai and Nantong. We are a professional manufacturer of control valves in the water supply industry, possessing multiple valve invention technologies and utility model technologies. We are a high-tech achievement transformation enterprise and pilot enterprise in Shanghai. The "low-resistance backflow preventer" developed and produced by our company won the "Zhan Tianyou Award" as a supplier to the China Pavilion at the Shanghai World Expo, which is an award established by the China Civil Engineering Society. Our company is also a member unit of the China Urban Water Supply and Drainage Association and the National Building Water Supply and Drainage Association. We have participated in the preparation of 15 national and industry standards in the field of water supply and drainage. The technical level of our control valves ranks among the best in the industry, with backflow pollution prevention technology reaching international standards.

ACHIEVEMENT

Our company has always adhered to the craftsman spirit of solving problems whenever they arise, with the corporate spirit of meticulously researching "valves"; taking solving water supply problems as our corporate responsibility; setting continuous innovation, research and development, and optimization as our corporate benchmark; aspiring to achieve a win-win situation for the enterprise, the industry, and the customers! Let's work together and intelligently create the future!

The heart of every great experience

We don’t just serve—We create unforgettable moments. Your passion, attention to detail, and genuine care turn every interaction into a lasting impression.

We believe that true power lies in unity. When we support, trust, and inspire one another, there’s no challenge too great and no goal beyond our reach.

We take immense pride in delivering products of exceptional quality and service that truly exceeds expectations—because our customers deserve nothing less than excellence.

Leading the way in industry excellence.

Industry experience

Valve-related invention patents

New patents

Sold to regions worldwide

OUR LOCATION（SHANGHAI）

Factory 1 address: No. 333, Pinggang Road, Situan Town, Lingang Free Trade Zone, Shanghai

OUR LOCATION（NANTONG）

Factory 2 address: No. 19, Hexing Road, Development Zone, Nantong City, Jiangsu Province

Contact Information

400-159-2118

E-mail

diamond.jo@shsanlo.com.cn

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