Brand

Ralston

Ralston Instruments builds pressure calibration accessories and portable test equipment, and this catalogue carries pressure calibrators, gauge comparators, quartz reference gauges and field enclosures.

Ralston is best known for its quick-connect hose and fitting system, which removes thread sealing from field pressure work and is a substantial time saving on a route. Confirm the connection standard you need and whether the kit includes the adapters for your gauge threads.

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Ralston Instruments 22988P Portable Pressure Calibrator Pump, 300 psi
The Ralston Instruments 22988P is a portable, hand-operated pressure calibrator pump that generates up to 300 psi (20 bar) without electricity or compressed air. Its fine adjustment piston and soft-seated bleed valve ensure precise pressure control for gauge comparisons, while the quick-disconnect adapter and rugged metal construction make it ideal for field use.
Ralston Instruments QTCM-1KPSIG-FL Quartz Pressure Transducer, 1000 PSIG, Flush Diaphragm
The Ralston Instruments QTCM-1KPSIG-FL is a high-accuracy quartz pressure transducer with a flush diaphragm, designed for demanding industrial pressure measurement. Featuring 4-20 mA output and 1000 PSIG range, it ensures stable, precise readings in harsh environments.
Ralston Instruments FLP1-GR-QF-EH FieldLab Outdoor Enclosure Kit, 3k PSI, 1/4 NPT, Pole Mount
The Ralston Instruments FLP1-GV-XF-E0 FieldLab Outdoor Enclosure Kit is a rugged, weather-resistant enclosure designed for high-pressure applications up to 10,000 PSI. With a 1/4″ female NPT connection, it provides reliable protection for your FieldLab instruments in demanding outdoor environments.
Ralston Instruments FLP1-GV-XF-EH-SP FieldLab Outdoor Enclosure Kit, Solar Powered, Pole Mount, 10kPSI
The Ralston Instruments FLP1-GV-XF-EH-SP FieldLab Outdoor Enclosure Kit is a solar-powered, pole-mounted solution for high-pressure applications up to 10,000 PSI. Designed for demanding industrial environments, it provides reliable protection and power for your FieldLab instruments.
The Ralston Instruments HPGV-1KPSIG-M is a portable, hand-operated hydraulic pressure calibrator that generates up to 5000 psi (350 bar). Featuring a fine adjustment piston and soft-seated vent valve, it ensures precise pressure control. Ideal for field calibration, it includes a 0-3000 psig gauge and quick-disconnect fittings.
Ralston Instruments QTHP2000+QTFIT Pressure Calibrator, 0-2000 PSI
The Ralston Instruments QTHP2000+QTFIT Pressure Calibrator offers a 0 to 2000 PSI range with ±0.5% of gauge span accuracy. This industrial pressure calibrator includes a hose assembly, hand pump, and gauge instructions, making it a reliable solution for calibration tasks.
Ralston Instruments QSCM-2FSA-20-2 Gauge Comparator for Pressure Calibration
The Ralston Instruments QSCM-2FSA-20-2 Gauge Comparator enables precise static pressure calibration. Featuring a fine adjustment piston and soft-seated valves, it ensures accurate control. Includes hoses and adapters for immediate use.
Ralston Instruments FLP1-GR-QF-EH FieldLab Outdoor Enclosure Kit, 3k PSI, 1/4 NPT, Pole Mount
The Ralston Instruments FLP1-GR-QF-EH is a rugged outdoor enclosure kit designed for FieldLab systems. Rated for 3,000 PSI with 1/4 NPT connections, it features pole mounting for secure installation in demanding industrial environments.
Ralston Instruments QTAP0200+QTFIT Pressure Calibrator, 0-200 PSI
The Ralston Instruments QTAP0200+QTFIT pressure calibrator offers a 0 to 200 PSI range with ±0.5% of gauge span accuracy. This complete kit includes a hose assembly, hand pump, and gauge, making it ideal for field calibration and industrial testing applications.
Ralston Instruments QSCM-5KPSIG-FL Digital Pressure Gauge
Ralston Instruments QSCM-5KPSIG-FL digital pressure gauge. Each Unit Includes Manifold QTCM Assembly (QTCM) Hose 1 Quick-test 6900 psi hose, S.S.
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