Ralston NPAK-1MBA-6-3
Nitrogen Calibration Source with Gauge Connection

  • 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
  • Made in U.S.A.
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Ralston NPAK-1MBA-6-3 Shown

Product Information
Datasheet 287 KB
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Self contained nitrogen source includes all connections and hoses to connect directly to a pressure gauge or calibrator
Pressure Range 0 to 3000 psi (0 to 207 bar)
Vacuum Range 0 to 10"Hg (0 to 254 mmHG)
Construction ABS Plastic, Aluminum, Anodized Aluminum, Brass, Plated Steel, Stainless Steel, Zippered Nylon with Velcro
Temperature Range 0 to 130 °F (-18 to 54 °C)
Ordering Information
Model Description Buy Online Price
NPAK-1MBA-6-3 Ralston NPAK1MBA63 Nitrogen Calibration Source with Gauge Connection (1/8" Male NPT)  Buy Now $4,381.90
Included Accessories
  • 1 - Assembly - NPAK Assembly (NPAK)
  • 1 - Gauge Adapter - 1/8" male NPT x female QT, no check-valve, brass (QTHA-1MBA)
  • 1 - Hose - Quick-test hose, brass hose ends, 6 ft (1.83 m) long (QTQT-HOS-6ft)
  • 1 - Hose - Quick-test hose, brass hose ends, 3 ft (92 cm) long (QTQT-HOS-3ft)
  • 2 - Hose Adapter - 1/4" male NPT x male QT, no check-valve, brass (QTHA-2MB0)
Optional Accessories
QTHAKIT0 Ralston QTHAKIT0 5 Brass Quick-test Fitting Kit Discontinued
Replacement Parts
NPAK-0002 Ralston NPAK0002 Inlet Check Valve Assembly  Buy Now $134.00