Ralston NPAK-2FBA-RG-2M-1M Nitrogen Pressure Calibrator

Overview

The Ralston NPAK-2FBA-RG-2M-1M is a portable nitrogen pressure calibrator designed for field calibration of differential and static pressure instrumentation. It combines an on-board storage cylinder with a nitrogen pressure regulator and precision volume controller, enabling fast and accurate pressure control up to 3000 psi without pumping or leaky connections. This variant features BSPP (ISO 228/1) connections for European equipment compatibility. The system requires no electronics, making it ideal for hazardous location use.

Key Features

• Integrated nitrogen storage cylinder for day-long operation without refueling
• Precision volume controller for extremely fast and accurate pressure adjustment
• BSPP (ISO 228/1) gauge and process connections for European equipment compatibility
• Fine adjustment piston control for differential calibrations up to 400 inH₂O
• Full pressure range via internal cylinder storage from 400 inH₂O to 3000 psi
• Organized carrying case with integrated storage for hoses, adapters, and pressure gauge
• Lightweight carbon fiber cylinder and ABS plastic case with ergonomic handle
• No electronics—suitable for North American Class 1 Division 1&2, ATEX, and IECEX hazardous locations
• Made in USA

Applications

• Field calibration of differential and static pressure gauges and transmitters with BSPP connections
• Calibration in European and international applications
• Calibration in hazardous locations and remote areas

Included Accessories

• Reference connection: G 1/4" female BSPP (ISO 228/1) to female Quick-test, no check-valve, brass
• Process connection: G 1/4" female BSPP (ISO 228/1) to male Quick-test, no check-valve, brass (qty 2)
• Quick-test hose 2 m (6.6 ft) long with brass ends, rated to 6900 psi
• Quick-test hose 1 m (3.3 ft) long with brass ends, rated to 6900 psi