Ralston Instruments has been a trusted leader in pressure calibration equipment, adapters, valves, fittings, and hoses since its founding in 1969 by Doug Ralston. The company is A2LA accredited, ensuring the highest level of precision and reliability in its products. Ralston pioneered the first handheld pneumatic and hydraulic pumps and later introduced the Quick test™ system, featuring hoses and adapters designed for secure, time-saving connections without the need for wrenches or thread sealant.
As an authorized distributor of Ralston Instruments, Relevant Industrial proudly provides a full range of pressure testing and calibration solutions, helping businesses maintain accuracy and efficiency in demanding industrial environments.
Ralston Instruments’ Offerings
Ralston Instruments designs high-quality pressure calibration equipment, adapters, valves, fittings, and hoses for applications in industrial, maritime, manufacturing, and utility sectors.
Adapters, Valves & Fittings
Ralston’s Quick-test™ adapters, valves, and fittings provide a secure and leak-free connection for pressure testing and calibration. These components simplify field and lab work by ensuring fast and reliable connections without the need for Teflon tape or sealant.
- Adapters: Quick-connect adapters for various pressure connections, including NPT, BSPP, Tube Fitting, Metric, Pete's Plug, 37° Flare, Medium Pressure, and Minimess variants.
- Unions, Elbows & Tees: Versatile Quick-test™ bulkhead connections, tees, and elbow test point adapters for complex pressure systems.
- Valves & Verniers: Precision block & bleed valves, in-line vent valves, and vernier controls for safe and accurate pressure calibration.
- DP Transmitter Adapters & Fittings: XT adapters and test fittings designed for direct connection to Ralston Quick-test™ XT hoses.
- Plugs, Caps & Chains: A full range of Quick-test™ plugs, hose plugs, caps, and protective chains to prevent contamination and damage.
Ralston also provides Quick-test™ Hose & Adapter Kits, featuring the most commonly used combinations of hoses and adapters for seamless pressure testing.
Microbore & Quick-test™ Hoses
Ralston’s microbore hoses are designed for easy attachment and detachment without wrenches while maintaining a working pressure of up to 6,900 psi (475 bar). These hoses provide superior flexibility, durability, and reliability in high-pressure environments.
- Quick-test™ Hoses: Various configurations available for different industrial applications.
- Tube Stub End Hoses: 1/8" and 1/4" stainless steel tube stub fitting hoses.
- Tube Quick-connect Hoses: Brass and stainless steel quick-connect hoses for fast, secure connections.
- USN Hoses & Adapters: Designed for high-pressure applications with quick-release mechanisms for seamless operation.
- XT Hoses: Available in both feet and meter variations for different calibration needs.
- Custom Hoses: Ralston allows customers to design custom Quick-test™ hoses for low- and high-pressure applications, ensuring compatibility with various pumps and calibration devices.
Pressure Calibration & Measurement Equipment
Ralston Instruments provides cutting-edge pressure and temperature calibration tools designed for accuracy and ease of use in the field.
FieldLab Digital Pressure Calibrator
- Speed through calibration tests with precision.
- Snapshot logging for quick test documentation.
- Continuous pressure data logging and PSV testing capabilities.
- One-touch engineering unit conversion.
Field Gauge Digital Pressure Gauges
- Available in models such as LC10, LC20, and LC30.
- High-accuracy pressure readings for field and lab applications.
- Optional Bluetooth connectivity for remote monitoring.
Field Gauge Thermal Probes
- LC10 and LC20 thermal probes for accurate temperature measurement.
- Pressure/temperature field gauge options available for multi-variable testing.
Hydrostatic Test Kits & Weatherproof Data Loggers
- FieldLab Hydrostatic Test Kit with a digital pressure reference, data logger, and thermal probe gauge.
- Weatherproof FieldLab Datalogger for long-term pressure tracking in harsh environments.
Why Choose Ralston Instruments from Relevant Industrial?
With over 50 years of experience, Ralston Instruments is a leader in pressure calibration technology. Their user-centric designs ensure reliability in extreme conditions.
Why Work with Relevant Industrial?
As an authorized distributor, Relevant Industrial offers
A full range of Ralston Instruments pressure calibration solutions.
Expert support for selecting the right adapters, valves, fittings, and hoses.
Custom solutions for specialized applications.
Contact us today to find the right Ralston Instruments solution for your pressure calibration needs.
