t.a.c. Barber-Colman

Innovative Balanced Plug Design: Balanced Plug technology lowers the force required to operate the valve, achieving exceptionally high close-off of 125 psi on 2-way valves. This is up to 7 times higher than conventional valve designs, even in the most demanding applications. Instead of pushing against the water flow as in conventional designs, the new Patented Balanced Plug, with 90% less surface area than conventional valves, cuts through the water. This greatly reduces the force required top operate and close the valve.

 

Higher close-offs are achieved without bulky, costly actuators or tandem linkages. In addition, no expensive balancing chambers or double seals are required. This permits more actuator options, particularly on 5” and 6” valves. With less force required to operate the valve, actuator life is extended. A downloadable demonstration of the Balanced Plug Technology can be found in the More Information section of this page.

 

 

Patented Plug and Seat Contour: The patented contoured seat precisely controls the flow of water or steam as the plug slides, closing off the rim of the seat. The VB-8000 Balanced Plug Valve provides rangeability of 100:1 for more precise temperature control. Many competitors’ valves have rangeability of 50:1 or even 10:1, which provides only ½ to 1/10 of the control capability of the VB-8000, resulting in poor control. More precise control, especially at low demand, provides better comfort. It also reduces “hunting” that adds wear and tear on the actuator.

 

Industry Best ANSI IV Leakage Rating: TAC Balanced Plug VB-8000 valves feature ANSI Class IV leakage. That’s 0.01% leakage. Most valves of this size have 0.5% or even 0.1% leakage. The increased leakage of competitors’’ valves means that more fluid needs to be conditioned, resulting in greater operating costs. With today’s energy prices, the valve can pay for itself in as little as 3 years.

 

Unique 3-Way Design: The 3-way VB-8000 valve can be used in mixing, diverting, and 2-way angle valve applications if either side port is sealed off. That’s because the common “AB” port is on the bottom of the valve. A plate showing the correct piping is installed on all 3-way valves to assist contractors in the field. A common 3-way valve makes valve selection easier and stock inventory of spares can be reduced.