Water Flow Balancing Valve

This short article is intended to introduce the basic principles of balancing valve waterflow measurement.

Water flow balancing valve.

The valves also have a brass venturi flow element for greater accuracy and allow for manual balancing and shut off. We offer a line of balancing valves that help heating and cooling systems perform well and cost efficiently. How the test works a balancing valve is a fitting installed in a hydronic system. These manual balancing valves feature a blowoutproof stem with double epdm o ring seals a union with an epdm o ring seal an adjustable memory stop and dual pressure temperature ports.

At each heat transfer coil the balancing valve is set to provide the precise. Hydronic balancing also called hydraulic balancing is the process of optimising the distribution of water in a building s hydronic heating or cooling system by equalizing the system pressure so it provides the intended indoor climate at optimum energy efficiency and minimal operating cost. Most technicians are stronger on measuring airflow than waterflow. Balancing valves maintain flow conditions so that control valves function properly in hvac systems because unbalanced systems can produce wide temperature variations among rooms and can increase energy needs.

To 2 models feature multi turn adjustment for precise control hidden memory stops to set balance point and soft seats for positive shutoff. The armstrong circuit balancing valves cbv provide precision flow measurement pump throttling and temperature measurement capabilities. Balancing the chilled water main branches sub branches risers header terminal by proportionally. The traditional larger system uses balancing valves at or near the end of main.

The balancing valves used most often are manual calibrated combination flow and balancing devices such as the bell gossett low lead circuit setter. Valves can simply be pre set using the b g circuit setter balance valve calculator curve booklet g10091 or the system syzer application for iphone ipad or pc. To provide the correct power output heating or cooling devices require a certain flow known as the. Let s take a look at how to measure flow through a water balancing valve.

Where necessary close the main regulating valve to provide a flow of approximately 110 design flow rate. Role of balancing valves the role of the balancing valve is to control the gallon per minute gpm flow rate in each building main riser and branch to deliver the designed gpm flow in chilled and or hot water applications. With all valves are fully open measure and record the total actual flow rate and compare this with the total system design flow rate.