Zurn Wilkins Automatic Control Valves - How it Works
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- Опубліковано 8 лип 2014
- This animation shows the internal adjustments made by the Zurn Wilkins ZW209 Automatic Control Valve during normal operation, allowing the valve to hold constant outlet pressure regardless of changing flow rates and inlet pressure. Click here to see more information about the ZW209: www.zurn.com/Pages/ProductDeta...
- Наука та технологія
Easy to understand! Thanks!
Excellent video! Thank you for sharing!
That was awesome video
hi.. What would happen if the pressure upsteam the control valve drops below the set point (55 psig)? will it fully open or close? really appriciate your answer... thx
Hi, Danny. Should the inlet pressure drop below the set point, the valve will be in an open condition, and out of control. The valve requires a minimum of a 10 psi differential across the valve to remain in control.
If you have any more questions, feel free to contact the Zurn Wilkins Customer Care department at 1-855-ONE-ZURN (1-855-663-9876).
Hi , what is the difference between this type and the type with Low-flow Bypass ? Thanks
All ACVs of the Pressure Reducing variety have minimum
continuous flow requirements. As long as the minimum continuous flow rate
is above the minimum flow rate of the ACV, no low-flow by-pass is needed.
In the event the flow rate drops below the minimum continuous flow rate of the
ACV, a low-flow by-pass is called for. In the case of the ZW209BP, we add
a small direct acting Pressure Reducing Valve to the backside of the ACV.
The small PRV will handle all low-flows through 10 GPM. This is the main
difference between the ZW209 and the ZW209BP.
thank you for reply . one more thing , in case of no flow , will downstream pressure stay at set pressure by using the ZW209 or need to add Bypassin this case ?
Good explained about PRV
#tanweerahmed
Are the gauges important for commissioning?
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