Zeilfelder has two main pump series. One, the standard and low cost GREEN series for regular applications and the high performance, highly durable, highly efficient and energy saving BLUE series for all applications.

GREEN Series Zeilfelder pump offers high quality standards at low initial acquisition cost while the BLUE Series achieves highest performance and offers a lower Life Cycle Cost (LCC). The BLUE Series design, its high quality materials and components, low tolerance and special gear construction as well as the perfect maching of shaft, cases and gears allow it to reach high efficienciency, durability and safety and will have a long lifetime in your plant.

The BLUE Series has been conceived to reach highest pressure and be used as well for lowest as for high temperature applications.

Standard GREEN Series	High performacne BLUE Series
- System pressure up to 25 bar - Suction head up to 4 m - Flow rate from 0,02 to 23.500 L/min. - Efficiency up to 74% - market usual lifetime through:           - standard-bearings           - standard-coating	- System pressure up to 64 bar - Suction head up to 8 m - Flow rate from 0,03 to 28.850 L/min. - Efficiency up to 92% - Long-Life-design through:           - high grade bearings           - high grade shaft coating

GREEN Series reach a maximum efficiency of 74% while the BLUE Series reach a maximum efficiency of 92% depending on thedelivered liquid, its viscosity, working pressure and specific application properties.

Life Cycle Costs has gained on importance considering todays increasing energy costs and pressure on
manufacturing cost.
Life Cylcle Costs (LCC) consist of:

• initial investment (AC) i.e. initial price of pump,
• initial cost of installation (IC),
• energie consumption and operating costs (OCE),
• maintenance costs, reparing costs (OCM),
• business and machine interruption costs (LP),
• at the end of the pump life cycle, replacement costs (RC) of the pump.
  

LCC = AC + IC + OCE + OCM + LP + RC

While the BLUE Series pumps purschasing price or initial investment costs (AC) is higher, the complete life cycle costs (LCC) are clearly lower than the LCC of the GREEN Series. In addition the BLUE Series pumps
guarantee:
- lower energy consumption,
- higher process safety and reliability,
- higher durability and a much longer life cycle.
These ensure business reliability, reduce process interuption costs and lower maintenance needs.

LCC: comparing BLUE and GREEN Series

The diagram shows how initial investment in a BLUE Series pump has a positive return of investment (ROI) and a lower LCC compared the market usual GREEN-Series design. Low operating costs (OCE), no replacement costs (RC), low maintenance costs (OCM) and reduced process interruption costs (LP) reduce life cycle costs.
The BLUE Series makes you save money and gets cheaper (whole LCC) than the GREEN Series after 2 to 5 years (depending on the application).