Ralston NitroPak

Self-contained unit provides a precise nitrogen source for calibrating differential and static pressure instrumentation using an external pressure calibrator

  • 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
  • Nylon bag to hold hose and fittings attached to inside of lid
  • Includes storage compartment in control panel for pressure reference test gauge
  • Low volume Quick-test hose, gauge adapter and process connection can be attached to NPAK 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 USA

Ralston NitroPak Models

Model Max Pressure Reference Connection Process Connection Hose 1 Hose 2
NPAK-0000-0-0 3000 PSI
1/4" Female NPT
1/4" Male NPT
Quick-test Hose, Stainless Steel ends, 6ft / 1.9m long
Quick-test Hose, Stainless Steel ends, 3ft / 0.9m long
NPAK-1MBA-6-3 3000 PSI
1/8" Male NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long
NPAK-1MBA-2m-1m 3000 PSI
1/8" Male NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 2m long
Quick-test Hose, Brass ends, 1m long
NPAK-2MBA-6-3 3000 PSI
1/4" Male NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long
NPAK-2MBA-2m-1m 3000 PSI
    Quick-test Hose, Stainless Steel ends, 6m long
Quick-test Hose, Stainless Steel ends, 1m long
NPAK-2FBA-6-3 3000 PSI
1/4" Female NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long
NPAK-2FBA-2m-1m 3000 PSI
1/4" Female NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 6m long
Quick-test Hose, Brass ends, 1m long
NPAK-2FBA-RG-2m-1m 3000 PSI
1/4" Female BSPP (G1/4)
1/4" Female BSPP (G1/4)
Quick-test Hose, Brass ends, 2m long
Quick-test Hose, Brass ends, 1m long
NPAK-3FBA-RG-2m-1m 3000 PSI
3/8" Female BSPP (G3/8)
1/4" Female BSPP (G1/4)
Quick-test Hose, Brass ends, 2m long
Quick-test Hose, Brass ends, 1m long
NPAK-4FBA-RG-2m-1m 3000 PSI
1/2" Female BSPP (G1/2)
1/4" Female BSPP (G1/4)
Quick-test Hose, Brass ends, 2m long
Quick-test Hose, Brass ends, 1m long

Ralston NitroPak Models with FieldLab

Model Max Pressure Process Connection Hose 1 Hose 2
NPAK-1KPSIG-FL 3000 PSI
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long
NPAK-3KPSIG-FL 3000 PSI
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long

Ralston NitroPak Models with Digital Gauge

Model Max Pressure Reference Connection Process Connection Hose 1 Hose 2
NPAK-1KPSIG-D 3000 PSI
1/4" Female NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long
NPAK-3KPSIG-D 3000 PSI
1/4" Female NPT
1/4" Male NPT
Quick-test Hose, Brass ends, 6ft / 1.9m long
Quick-test Hose, Brass ends, 3ft / 0.9m long

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