Liquefied gas pumps specially designed for liquid CO2 service
in response to specific requests from major CO2 marketers for a more durable pumps, capable of handling higher working pressures on liquid CO2 service. Blackmer accepted the challenge of designing a pump that would meet or exceed the marketers' specifications.

Design criteria included the ability to easily handle dry, non lubricating CO2 at sub-zero temperatures, with differential pressures up to 100 psig (689 kPa) while operating on a continuous 24-hour duty cycle with minimal manitenance and inspection requirements.

After four years of intensive research and development, and 30,000 hours of combined laboratory and field testing, Blackmer introduced a new line of pumps that far exceeded the original expectations.