Hood clamshell

Save time and precision on your non-destructive testing (NDT LT)

The most precise Non-Destructive Test for leak testing on the market

Our hood clamshell is a non-destructive leak testing (NDT LT) solution. It enables you to qualify a weld as quickly as possible. In fact, it takes only 3 minutes to seal your weld and obtain the result. The hood clamshell measures a helium leak rate as low as 10-9 mbar·l·s-1. This achieved rate makes our shell the best NDT LT solution on the market in terms of time efficiency and precision.

3 min

Implementation time

10-9 mbar.l.s-1

Helium leak rate

Without helium supply

Works in open circuit

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NDT qualified in the most demanding sectors of activity

Our hood clamshell is used in the most demanding leak-tightness applications: nuclear, aerospace, particle accelerators, aeronautics, cryogenics, and more. Our material is specifically designed for non-destructive helium leak testing.

NUCLEAR

AEROSPACE

PARTICLE ACCELERATOR

AERONAUTICS

How the hood clamshell works

Watch the explanatory video of our hood clamshell.

Why use our hood clamshell :

  • Extremely accurate leak rate
  • Isolates the area to be tested
  • Direct zone validation
  • Easy to set up
  • Time saving for NDT
  • Small footprint
  • Plug & play - ISO KF
  • No false negatives
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Possible configurations of hood clamshells

We design custom NDT sniffing hoods for pipes and diameter transitions, optimized for tight spaces.

We also provide leak testing for flanges, fittings, and complex geometries such as elbows.

CND LT contrôle non destructif coquille de reniflage taux fuite helium soudure reniflage boite depression ressuage

Tube to tube

CND LT contrôle non destructif coquille de reniflage taux fuite helium soudure reniflage boite depression ressuage

Diameter reduction

CND LT contrôle non destructif coquille de reniflage taux fuite helium soudure reniflage boite depression ressuage

Plug

CND LT contrôle non destructif coquille de reniflage taux fuite helium soudure reniflage boite depression ressuage

Custom made

A wide range of configurations is available. Contact us to discuss your specific needs.

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CND LT contrôle non destructif coquille de reniflage taux fuite helium soudure reniflage boite depression ressuage

Technical datas

  • Leak rate : 10-9 mbar.l.s-1
  • Vacuum pressure: 10-1 to 10-3 mbar
  • NDT time: 3 minutes from implementation to result
  • ISO KF 16 or ISO KF 25 connection → Plug and play on mass spectrometers
  • From Ø 6mm to Ø 600mm
  • Small cross section: 15 to 25mm
  • Operates in open circuit: specific validation of a weld
  • Helium tracer gas possible but not mandatory
  • Tube to tube hood clamshell available : ND8 / 10 / 15 / 20 / 25 / 32 / 40 / 50 / 65 / 80 / 90 / 100 / 125 / 150 / 200 / 250 / 300 / 350 / 450
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