3-Way & 2-Chamber Control Valves

3-way & 2-chamber Control Valves

The BDV series back-flushing control valves are advanced 3-way and 2-chamber hydraulic drive diaphragm valves designed for smooth flow changes and low-pressure sealing. These valves can be integrated with gravel or disc filters to create an automatic backwash filtration system. They also allow for flow direction changes in water supply systems, making them highly versatile.

Typical Applications

Auto Back-Flushing Filtration System:

The BSV series back-flushing control valves can be combined with gravel or disc filters to build a fully automated backwash system, ensuring clean and efficient water filtration.

Water Supply Systems:

These valves are used in water pipelines to redirect the flow into either straight or angular directions, enhancing system flexibility and efficiency.

Key Features

1. Hydraulic drive diaphragm design for reliable operation;

2. Unique plastic spool assembly for tight sealing and corrosion resistance;

3. Short stroke ensures stable water flow and prevents mixing of clean and dirty water;

4. Durable PP material that is resistant to corrosion and long-lasting;

5. Easy-to-dismantle driving system for convenient on-line maintenance and inspection;

6. Dual-chamber design with low-voltage drive to protect the diaphragm;

7. Offers both angular and straight flow options, with no installation direction restrictions;

8. Unique cavity design ensures high water flow capacity;

9. Supports installation of changeover joints in the direct flow valve, allowing adjustment from 4 to 3, or 3 to 2, meeting small flow requirements.


Specifications:

Dimensions:

How It Works?

Let’s take a direct flow control valve as an example:

In normal filtering mode, the inlet and outlet are connected, allowing straight water flow. When pressurized water enters the diaphragm control chamber, it drives the spool assembly upward, sealing the inlet and directing water to the sewage outlet, initiating the backwashing cycle. Once the control chamber is drained, the pressure and spring force return the spool to its original position, resuming the filtration process.

About BALDR Technology Co., Ltd.

Founded in October 2012, BALDR Technology is based in Fuzhou, China. We specialize in environmental equipment, focusing on water treatment, filtration systems, and air deodorization solutions. Our products serve agriculture irrigation, urban landscaping, golf courses, industrial water recycling, and municipal air purification.

We have over 300 employees, a 1,500 m² office space, a 500 m² R&D center, a 300 m² showroom, and a 10,000 m² modern industrial plant featuring molding, plastic injection, metal stamping, electronics, and assembly lines.

 

Contact Us:

Ivory Zhang | Sales Engineer

BALDR TECHNOLOGY CO., LTD

Website: www.baldr.com.cn

Mobile: +86 15012918283

Tel: +86-591-28307925

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