Product Description
TYPICAL APPLICATION
back-flushing control valve can be connected with gravel filter or disc filter into an automatic backwash filtration
system, and it can also change the direction of flow in water supply. The control valve has 2 control chambers, which can be
deformed into angular flow or direct flow through different spring assembly direction. The unique cavity design ensures large
flow volume of water supply:
Auto back-flushing filtrationg system - BDV series back-flushing control valves can be built into an automatic backwash
system with gravel medium filter or disc filter.
Water supply system - Being used in the water supply pipelines to reroute the water flow into angle or straight
flow direction.
FEATURE & ADVANTAGE
• Hydraulic drive diaphragm control valve;
• Unique plastic spool assembly design with tight sealing and corrosion resistance;
• Short stroke of valves stabilizing water flow and avoiding blend of clean and dirty water;
• Corrosion-proof and long lasting PP material;
• Unique cavity design of BDV series ensuring high water flow;
• With an easily dismantled driven system for convenient on production line checking and maintenance;
• Dual-chamber design of BDV series valve with low-voltage drive to effectively protect the diaphragm;
• With the possibility to install changeover joints in the drain of the direct flow valve, from 4 to 3, from 3 to 2,
meeting the demands of small flows.
• With the application of dual chamber design, BDV series providing angular flow and direct flow options, and being free of
installation direction confinement;
- Corrosion-proof materials (additional versions for sea-water and aggressive media available)
- Sturdy body, made of Glass-Reinforced Polyamide (GRP)
- Light weight
- Valve changes position in a frictionless manner
- Simple and easy maintenance
- Easy installation, no special tools or expertise required.
- Special design models for disc and media filtration systems
Take the straight-through flow control valve as an example: when the policy filters the working state, the inlet and outlet are connected, and the water flow is moving forward. When the external pressure water [1]into the diaphragm control cavity[2], pressure increases,diaphragm [3] drive valve core assembly [4] up into the upper seat[5] , the inlet is closed strictly, at this time the sewage outlet and the outlet, the water flow back from the outlet to the sewage outlet into the backwash state. When the water in the control cavity is discharged, the pipe water pressure and spring elasticity[6] work together to bring the valve core [4]assembly back to the lower seat[7] of the sewage outlet, the sewage outlet is closed and strict, and the control valve returs to the filter mode.
TECHNICAL DATA
| Model |
Flow Direction |
Connections Sizes |
Connections |
Volumn in Cavity(L) |
Working Pressure(Bar) |
Weight(kg) |
| |
Angle |
3''x3''x3'' |
BSP/NPT |
1.5 |
0.7-10 |
5.5 |
| |
Angle |
4''x4''x4'' |
BSP/NPT |
1.5 |
0.7-10 |
5.5 |
Company Profile
FUJIAN DAFENGSHOU IRRIGATIONN TECHNOLOGY CO., LTD. is a company specializing in the research, development and production of water-saving irrigation products for agriculture, water conservancy, garden irrigation and integration of water and fertilizer systems.It also provides design, installation and guides on irrigation projects for agriculture, water conservancy, gardens and integration of water and fertilizer systems. Our main products include micro-irrigation systems (drip irrigation and micros spray irrigation), sprinkling irrigation systems, filtration systems, fertilization systems, garden irrigation systems and accessories,etc. These products are widely used in agriculture, water saving irrigation, garden landscape, municipal greening, greenhouses, Cooling dust on industrial and mining. Our products and services have been recognized and praised by many users as our rich experience. We pay much more attentions on continuous innovation, quality products and professional services.
In 2016, we won the certificate of science and technology enterprise in Fujian Province and was awarded the 2014-2016 Outstanding Innovative Practice Base for excellent Students by the College of Mechanical and Electrical Engineering of Fujian Agriculture and Forestry University.All Products passed the ISO9001 quality and ISO14001 environmental management system certifications, especial micro-spraying equipment and drip irrigation equipment obtained Fujian agricultural machinery promotion and appraisal certificate, and listed in the 2015-2017 promotion product catalog by Fujian Province water conservancy technology.
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