Arctic Hayes 30mbar U-Flex Manometer Gauge

Arctic Hayes 30mbar U-Flex Manometer Gauge

By Arctic Hayes · Model: AH038 · Plumbing & Heating

U-tube manometer for gas tightness testing with flexible design and 12-inch length, essential equipment for Gas Safe registered engineers.

  • U-tube manometer for gas tightness and let-by testing
  • 30mbar range suitable for natural gas and LPG testing
  • Flexible design allows use in confined spaces
  • 12-inch tube length for clear, accurate readings
  • Includes red gauge fluid for easy visibility
  • Essential equipment for Gas Safe engineers and gas work compliance
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Overview

The Arctic Hayes U-Flex Manometer is a simple but essential piece of equipment for any gas engineer. It is used to carry out tightness tests and let-by tests on gas installations, as required by Gas Safe regulations. The flexible design means it can be positioned in awkward spaces next to meters and pipework without the rigidity issues of traditional glass manometers. The red gauge fluid provides clear readings against the graduated scale, making it easy to monitor pressure changes during testing.

In-Depth Look

Gas tightness testing is a fundamental part of any gas work, and the U-tube manometer remains the standard tool for the job. While digital gauges exist and have their place, many gas engineers still prefer the simplicity and reliability of a U-tube for tightness and let-by tests.

How It Works

The principle is straightforward. The manometer is connected to the gas installation via a test point, and the system is pressurised. Any drop in pressure over the specified test period indicates a leak. The U-tube design means there are no electronics to fail, no batteries to go flat, and no calibration drift. The red fluid simply rises and falls in response to pressure changes, and the graduated scale gives a direct reading in millibars.

The Flexible Advantage

The key feature of the U-Flex over traditional manometers is its flexibility. Gas meters are often installed in cramped cupboards or outside in meter boxes where space is tight. A rigid glass manometer can be awkward to position and vulnerable to breakage. The flexible tubes of the U-Flex solve both problems — it can be bent around obstacles and will not shatter if knocked.

Verdict

The Arctic Hayes U-Flex Manometer is an affordable, reliable and practical tool for gas tightness testing. It does not replace a digital manometer for all situations, but for standard tightness and let-by tests it is perfectly fit for purpose. Every gas engineer should have one as a primary or backup testing tool.

Specifications
Range0-30 mbar
Tube Length12 inches (300mm)
DesignFlexible U-tube
FluidRed gauge fluid (included)
ApplicationGas tightness and let-by testing
Gas TypeNatural gas and LPG

Who It's For

  • Gas Safe registered engineers carrying out gas tightness testing
  • Plumbing and heating apprentices building their tool kit
  • Landlords' gas safety inspection contractors

Pros & Cons

Pros

  • Flexible design is more practical than rigid glass manometers in real-world use
  • Clear red fluid and graduated scale make readings easy to take
  • Affordable and reliable with no batteries or calibration needed
  • Compact enough to carry in a standard tool bag

Cons

  • Must be held or positioned vertically for accurate readings
  • Gauge fluid can be lost if the tube is tipped over accidentally
  • Digital manometers offer faster readings for time-pressured engineers
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