Pump Selection for Solar Hot Water Systems
Solar thermal systems require high head and low flow.
I’ve been having some conversations with a few engineers about how to properly select pumps for large solar hot water systems. The pumps used in our Fluid Handling Systems are selected from major manufacturers, such as TACO and Bell & Gossett. Each pump is chosen for the particular characteristics needed for solar thermal collector operation. In particular, solar hot water pumps require high head and relatively low flow.
I have been using TACO pumps in since 1977. The 00 series of pumps is well suited to the high head, low flow requirements of solar thermal systems.
For our recent GTCC job, I have chosen the 0013 pump. This particular pump is called a cartridge circulator, meaning that the water it pumps acts like the coolant and lubricant inside the pump. Maintenance consists of replacing the cartridge inside.
TACO has guaranteed the operation of its line of pumps in solar water heater applications since the ’70s and their performance has exceeded the guarantee.
We have received information of our solar water heating systems in continuous operation for 25 years and are proud of our rugged design. We actually have a 25 year old system in our shop that we replaced this winter. It is in perfect working condition. The TACO 009 pump is still in working order!
As a manufacturer, Holocene very carefully controls the quality and performance of our products. The Fluid Handling Systems we manufacture are integrated packages with components that work together for durability and high efficiency.