Headquarters in Woodinville, Washington USA Building Pressure Independent Valves since 1991

DeltaPValves® are the only choice

Not surprisingly there are other companies that have attempted to follow the Flow Control Industries lead and produce pressure independent variable set point control valves. Only the DeltaPValves®:

• are designed for 220 deg F service to allow the optimum delta T on heating coils
• are designed for constant flow over the widest temperature drop window (5-60 psid) with the least change in delivery compared to the competitors over their narrower pressure drop windows
• have a proven track record in not failing or causing fluid shaking or flow noises
• have an array of sizes from ½ inch to 14 inches
• have a large fluid passages that open up larger that conventional balancing valves
• do not have small pilot orifices that competitors use to combat the fluid shaking noises which in turn may clog.
• have over 16,000 industrial pressure independent valves installed to date and a wealth of case studies for retrofits to prove their savings and improvements to building comfort