The Design Envelope IVS Twin Vertical in-line pump for commercial HVAC systems combines two variable-speed rotating assemblies in one shared casing. The twin-pump design is a variable-speed, duty/standby solution for any application that demands constant availability, energy savings, and a small footprint. The unit also employs sensorless technology, which provides increased overall efficiency. According to the manufacturer, vertical in-line pumps may be installed directly in the system piping with no additional support.
S. A. Armstrong Limited