Armstrong Dual Arm pumps can provide the redundancy you need, and reduce the required installation items to only one set.
You can easily request project specific savings for total installation cost, space, and weight incurred by using the unique Dual Arm pump comprised of two pumps with one volute.
If one of the pumps should need maintenance, that pump can be isolated from the system while the other pump is fully functional. You get zero down time during maintenance.
Dual Arm pumps are also available with integrated VFDs. A VFD per pump provides full redundancy for the drives as well. No bypass is necessary and full modulating operation is available.
Plus, in normal operation the Integrated Variable Speed Pumps can be pre-programmed to stage equal run time between the duty standby pumps.
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