TYPICAL APPLICATION
BDV series 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 &Â 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;
BDV SERIES 3-WAY &Â 3-CHAMBER BACK FLUSHING CONTROL VALVE SPECIFICATION
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| MODEL | FLOW DIRECTION | CONNECTIONS SIZE | CONNECTS | VOLUMN IN CAVITY(L) | WORKING PRESSURE(Bar) | WEIGHTÂ (kg)(lb) |
| BDV050S | straight | 2''x2''x2'' | BSP/NPT | 0.13 | 0.7-10 | 2.8Â Â Â 6.2 |
| BDV050A | angle | 2''x2''x2'' | BSP/NPT | 0.13 | 0.7-10 | 2.8Â Â Â 6.2 |
| BDV080S | straight | 3''x3''x3'' | GROOVED | 0.34 | 0.7-10 | 5.5Â Â Â 12.1 |
| BDV080A | angle | 3''x3''x3'' | GROOVED | 0.34 | 0.7-10 | 5.5Â Â Â 12.1 |
| BDV100S | straight | 4''x4''x4'' | GROOVED | 0.55 | 0.7-10 | 9.9Â Â Â 21.8 |
| BDV100A | angle | 4''x4''x4'' | GROOVED | 0.55 | 0.7-10 | 9.9Â Â Â 21.8 |
DIMENSION DETAILS
| MODEL |     H mm   in |
    H mm   in |
     D mm    in |
              NOTE |
| BDV050S | 274Â Â 10.8 | 180Â Â 7.0 | 160Â Â 6.3 | BSP/NPT,Grooved convertible |
| BDV050A | 274Â Â 10.8 | 180Â Â 7.0 | 160Â Â 6.3 | BSP/NPT, Grooved convertible |
| BDV080S | 378Â Â 14.9 | 287 11.3 | 192Â Â 7.5 | Drain:BSP/NPT,2''Grooved convertible |
| BDV080A | 378Â Â 14.9 | 287 11.3 | 192Â Â 7.5 | Drain: BSP/NPT,2''Grooved convertible |
| BDV100S | 464Â Â 18.3 | 277 11.0 | 260 10.0 | Drain: BSP/NPT,3''Grooved convertible |
| BDV100A | 464Â Â 18.3 | 277 11.0 | 260 10.0 | Drain: BSP/NPT,3''Grooved convertible |
Certificate
COMPANY PROFILE
Founded in October 2012, BALDR is a Sino-US joint venture and a professional environmental equipment manufacturer. We are committed to developing and producing equipment of the water treatment,  water filtration systems and air deodorization.
BALDR products are widely applied in agriculture irrigation, urban landscape irrigation, golf course irrigation, industrial water recycle and municipal industrial air deodorization.
Our company is located in Fuzhou China with more than 300 employers. There are three major teams: international sales team, the domestic sales team with engineering background, and the R&D team. Our company has 1500 m2Â office, 500 m2Â R&D Center, 300m2Â show room, and we also possess10000 m2Â modernized industrial plants including the molding, plastic injection, metal stamping, electronic appliances and assembly lines.
EXHIBITING
 CONTACT INFORMATION
Lily Huang
BALDR TECHNOLOGY CO., LTD
Mobile: +86-15892019072
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 Tel:    0086-591-38259610
Website: www.baldr.com.cnÂ
ADD: NO.36 JinRong North Road, JinShanYaYuan 2F, Fuzhou ,China
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