วาล์วปรับสมดุลการไหลแบบไดนามิก รุ่น W-DP71-25Q (DN50-DN500)
รหัสสินค้าวาล์วปรับสมดุลการไหลแบบไดนามิก รุ่น W-DP71-25Q (DN50-DN500)
Application
The Series W-DP71 dynamic flow balancing valve is designed for air-conditioning or heating system to keep the flow less than or equal to design value. It is generally used in constant flow systems.
Features
- Dynamic Balancing: constant flow is achieved through the valve plug's auto-adjustment of the opening rate when L'IP fluctuates in the system
- Precision calibrated valve plug keeps the flow deviation no greater than ±5%
- The flow rate is factory preset multiple L'IP ranges available for each size
- No on-site commissioning is needed, saving time and labor costs
- No need of re-balancing after system changes
Operating Principles
- Acting as a simple orifice plate, the valve plug will fully open when L'IP across the valve is below its control range. This allows the flow rate increases with the growth of L'IP (Figure 1 ).
- f L'IP is in the control range, the valve plug will adjust its opening in terms of the system's L'IP change. This ensures a constant flow rate with a deviation no greater than ±5 % (Figure 2).
- If L'IP exceeds the control range, the valve plug will work as an orifice plate again to achieve the smallest opening rate. And the flow rate increases with the growth of L'IP (Figure 3).
- L'IP-Flow Curve shows that in the in the working L'IP range, the flow rate stay the same (Figure 4).
