Founded in 1969 by Doug Ralston, Ralston Instruments is a family-owned company with a rich history of innovation. As a trusted brand in pressure calibration, Ralston Instruments has been engineering top-quality equipment and systems for over 40 years. Their products are designed to save time and streamline critical pressure testing, maintenance, and repair operations in a wide range of industries.

Ralston Instruments' commitment to innovation is evident in their groundbreaking inventions. In 1969, they invented the first hand-held pneumatic pump, followed by the development of the first hydraulic hand pump in 1970. They later introduced the first fully integrated system of Quick-test™ hoses and adapters in 1993, offering convenient and accurate calibration for low volume, high-pressure connections without the need for wrenches or thread sealants.

All of Ralston Instruments' products are proudly made in the USA using superior design and manufacturing techniques. Their product range includes hand pumps, compressed gas control devices, hoses, adapters, and complete calibration kits. Whether in the lab or a remote location, Ralston Instruments provides comprehensive pressure calibration solutions with their reliable hand pumps, fail-safe connections, and precision calibration tools.

Over the years, Ralston Instruments has achieved significant milestones, such as the release of the QTHP 5000 psi hydraulic pump in 2019 and the awarding of ISO 9001:2008 certification in 2014. Their dedication to excellence is further demonstrated by their new green headquarters located in Newbury, Ohio, USA. For accurate and reliable pressure calibration, trust Ralston Instruments to deliver superior quality products and exceptional customer support.

Contact them today to experience their expertise in pressure calibration solutions