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Ralston Instruments
P.O. Box 340
Novelty, Ohio 44072
United States

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Cutting-Edge Quick-test Adapters, Valves & Fittings

Ralston Instruments is world’s leading provider of advanced calibration applications, meticulously engineered to save time and ensure seamless pressure testing, repair and maintenance operations.

We offer a complete suite of fully integrated Quick-test adapters, valves & fittings. The products are intelligently designed to offer time-saving and secure connections to practically any device. The test point adapters, valves & fittings are highly functional for a range of pressure calibration and other applications.


NPT Male Quick-test AdaptersStraight Adapters & Test Point FittingsQTHA HSTE TeesUnions, Elbows, Bulkheads & Tees
Qtha Blbo 2 F 2 F
Valves & Verniers
Qtft Frs0DP Transmitter Adapters
Qtft Cap & ChainQuick-test Plugs, Caps & Chains

Wide Range of Test-point Adapters

Ralston Instruments offers a variety of test-point adapters, in addition to valves & fittings that help perform a range of functions while performing pressure calibration. This includes isolating a pressure device, controlling and venting pressure to deliver calibrated results. Our devices ensure precision, reliability and time-savings.

Key Features

  • Wide variety of Quick test adapters, valves & fittings to connect with any type of calibration device
  • Prompt and easy assembly and disassembly; no thread sealant or wrench is required
  • Fast, leak-proof & fail-safe connections
  • Quick-test unions makes connecting two hoses simple and quick
  • A range of Male and Female Quick-test adapters and hoses for testing, sampling and calibrating
  • Push-on/Pull-off capability minimizes connection time, and offers repeatability and longevity
  • All Quick test adapters, valves and fittings are made in USA, leveraging excellent design quality and manufacturing techniques

We provide a wide selection of Quick-test adapters, valves & fittings used for pressure calibration applications. Need assistance or advice to select the right connector? Please contact us.

Ready to Find the Right Calibration Solution?

We’ll help you find the right solution for your application, whether you’re working in the field or a lab.

Get In Touch