Ralston NPAK NitroPak Calibration System

This portable nitrogen pressure calibration kit provides a high pressure nitrogen source for calibrating differential and static pressure instrumentation using an external pressure calibrator. It includes an on-board storage cylinder, nitrogen pressure regulator and a precision volume controller for extremely fast and accurate pressure control. NitroPak users can easily reach each test point without pumping or leaky connections, up to 3,000 PSI/ 210 bar.

Product Manual


  • Proprietary pressure-balanced fine adjustment piston allows for extremely precise, finger-tip control of pressure at 0.03 psi (2 mbar) or 3000 psi (210 bar) or any range in between
  • Easily refillable nitrogen cylinder holds enough gas for multiple calibrations
  • A nylon bag to hold the hose and fittings is conveniently attached to the inside of the lid
  • Includes a storage compartment in the control panel for pressure reference test gauge
  • Low volume Quick-test™ hose, gauge adapter and process connection can be attached to the NitroPak without thread sealant or a wrench
  • Designed to meet US Department of Transportation (DOT) and Canadian Transport Canada (TC) standards
  • CE Approved for use in European Union – Designed to meet Pressure Equipment
  • Directive (PED) and Transportable Pressure Equipment (TPED) standards
  • Made in the USA