Additive Systems Incorporated (ASI) designed its own magnetically-driven gear pump in 1992. Since that time several different pump models have evolved making ASI the standard in the Liquid Terminaling Industry. In 1992 ASI heralded an unprecedented 3-year "no-leak" warranty for it's seal-less gear pumps, not to mention a 1-year manufacturer's warranty. The recent introduction of our Hammer line of pumps for harsh duty makes our line of chemical pumps very attractive. Now, more than 20 years later, there is still not another pump manufacturer in our industry that can top our warranty. Above all else we can deliver your product in record time.