Sundyne Sponsors Campus Energy 2026 in Washington DC, Feb 17-20th 

Today, many of the power plants in our nation’s universities use boilers to turn hot water into steam that’s used to heat buildings and power equipment. Hot steam travels through radiators and baseboard heaters to deliver heat into rooms. Steam boilers also provide usable energy, as steam spins turbines to generate electricity, power mechanical systems and bring process heat into laboratories on campus. 

Steam carries a lot of energy because it stores latent heat, which releases energy when steam condenses back to water. Many campus power plants feature closed loop processes, where cooled water returns to the boiler to be reheated, and combustion gases created in the process exit the plant through a flue or stack.

Sundyne’s Sunflo Pumps have a long and successful track record handling boiler feed water, condensate and de-superheating applications in campus power stations. Sunflo pumps are specifically designed for high pressure applications such as boiler feed and NOx suppression.

Sunflo’s success has been driven by high pressure demands that are needed to overcome boiler pressures while maintaining a low Net Positive Suction Head Required (NPSHr) to accommodate for a low Deaerator Tank (DA). The Sunflo product line utilizes a pre-engineered inducer to allow for a low DA tank without the need for a booster pump. With cyclical demands, Sunflo offers a wide operating range from 40-110% of Best-Efficiency-Point (BEP) without the need for recirculation.  

Bearing: With low Net Positive Suction Head Available (NPSHa), a pressure transient condition may occur, which can lead to premature failure. The Sunflo product line mitigates this possibility by providing a hydrodynamic thrust bearing that can withstand this upset to allow for continuous operation while maintaining a Mean Time Between Repair (MTBR) of 5 years.

Seal Design: To accommodate for elevated temperatures of 180-250 deg F, the Sunflo product line uses a specifically designed seal as well as a flush plan (Plan 11, 21 or 23) to provide the most reliable system. The rotating face is also provided in a Silicon Carbide material to resolve any leaching concerns with ultra-pure water, as a result of water conditioning standards for boilers.

Impeller: Sunflo is equipped with a 24 blade Barske impeller that integrally mates to the inducer providing a smooth, constant pressure to the system. This impeller design also allows for generous clearances, removing the concern of stratification and need for a warm-up line.

Utility: The Sunflo product line requires minimum utility as a splash lubrication system is used for the gearbox for units up to 75HP and an air-cooled design can be used up to 250HP. 250-400HP requires external cooling water to the gearbox.

Serviceability: The Sunflo product line can be serviced within 1 hour, with 1 man,1 wrench, and minimum training. This is accomplished by replacing the Sunflo Shaft Assembly which contains all the wear parts within the pump, allowing for minimal downtime and the reduction of third-party maintenance.

Process Map:

Sundyne pump portfolio products labeled:

Green: Sunflo

Yellow: Sealless Pumps (Ansimag/HMD)

Condensate Pump can vary depending on temperature and flow rates

Sunflo pumps do not just provide greater efficiency, they also significantly reduce maintenance requirements. To learn more about how one of the nation’s most prominent universities saved time and money maintaining its boiler room systems with Sunflo pumps, please see this case study.

Sundyne World Headquarters
14845 W. 64th Ave.  |  Arvada, CO 80007 USA  |  +1 303-425-0800  |  www.sundyne.com