TYPICAL APPLICATIONS
The BDV series back-flushing control valve is designed to integrate with gravel or disc filters, creating an automatic backwash filtration system. It also allows for the redirection of water flow in irrigation and water supply systems. The dual-chamber design enables the valve to switch between angular and straight flow configurations by adjusting the spring assembly. This unique cavity design ensures high water flow capacity while maintaining a tight seal and durability.
Auto Back-Flushing Filtration System – These valves can be used with gravel or disc filters to create a fully automated backwashing system, reducing maintenance and improving efficiency.
Water Supply Systems – Ideal for use in pipelines where directional flow adjustments are required, such as in agricultural irrigation, landscaping, and industrial water management.
FEATURES & BENEFITS
• Hydraulically driven diaphragm control valve for reliable performance
• Unique plastic spool design with excellent sealing and corrosion resistance
• Short stroke operation ensures stable water flow and prevents mixing of clean and dirty water
• Durable PP material that resists corrosion and lasts longer
• Optimized cavity design enhances water flow efficiency
• Easy-to-maintain drive system for quick inspections and repairs on production lines
• Dual-chamber configuration with low-voltage drive to protect the diaphragm from damage
• Flexible installation options with adjustable drain ports for different flow rates
• Versatile design supports both angular and straight flow configurations without installation restrictions
BDV SERIES 3-WAY & 3-CHAMBER BACK FLUSHING CONTROL VALVE SPECIFICATION
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| MODEL | FLOW DIRECTION | CONNECTION SIZE | CONNECTS | VOLUME IN CAVITY (L) | WORKING PRESSURE (Bar) | WEIGHT (kg/lb) |
| BDV050S | straight | 2''x2''x2'' | BSP/NPT | 0.13 | 0.7-10 | 2.8 / 6.2 |
| BDV050A | angle | 2''x2''x2'' | BSP/NPT | 0.13 | 0.7-10 | 2.8 / 6.2 |
| BDV080S | straight | 3''x3''x3'' | GROOVED | 0.34 | 0.7-10 | 5.5 / 12.1 |
| BDV080A | angle | 3''x3''x3'' | GROOVED | 0.34 | 0.7-10 | 5.5 / 12.1 |
| BDV100S | straight | 4''x4''x4'' | GROOVED | 0.55 | 0.7-10 | 9.9 / 21.8 |
| BDV100A | angle | 4''x4''x4'' | GROOVED | 0.55 | 0.7-10 | 9.9 / 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
BALDR is a Sino-US joint venture established in October 2012. As a professional manufacturer of environmental equipment, we specialize in developing and producing water treatment systems, filtration solutions, and air deodorization technology.
Our products are widely used in agriculture irrigation, urban landscaping, golf course watering, industrial water recycling, and municipal air deodorization applications.
Based in Fuzhou, China, BALDR employs over 300 staff members. Our company consists of three major teams: international sales, domestic sales with engineering expertise, and a dedicated R&D department. We have a 1500 m² office, 500 m² R&D center, 300 m² showroom, and a 10,000 m² modern industrial plant featuring molding, injection, stamping, electronics, and assembly lines.
EXHIBITION
 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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