The DERAY®-Proof is a manually operated pneumatic testing equipment to check splice joints and various terminals fitted with adhesive lined heat shrink tubes for leaks.

Features and Benefits

  • Simple and easy handling
  • Affordable testing of sealing points
  • The device is ready for immediate use
  • The unit is easy to carry thanks to the storage in an aluminum case
  • No power supply required
  • The testing equipment is adjustable through integrated pressure regulator and pressure gauge
  • The testing equipment is available with 2 or 6 pressure chambers
  • Cable cross sections testable from 0.13 to 6 mm2
  • CE and RoHs conformity


Parallel splices, end splices, ring terminals, tubular cable lugs


The cable ends are inserted into the pressure chambers. The pressure chambers are manually closed and locked. The sealing point equipped with shrink tube is then stored in a water bath. Through a switch, the compressed air of 0.7 bar max. is released into the pressure chambers and the application to be tested is subjected to the test pressure up to the sealing point. Leaks in crimped or welded splices or terminals fitted with heat shrink tubes will become visible through rising bubbles in the water.

Order information

  • DERAY®-Proof with 2 chambers
  • DERAY®-Proof with 6 chambers

For other products and sizes contact DSG-Canusa Application Engineering.


  • Testing equipment
  • 2 gaskets


  • Dual Wall
  • OEM
  • Splice Sealing Solutions
  • Transit
  • Automotive
  • Marine
  • Aerospace Defense
  • Application Equipment
  • Waterblocking


Pneumatic connection5 – 10 bar (72.5psi -145psi)
Pneumatic work pressure0.5 – 0.7 bar (7.2psi – 10.1psi)
Ambient temperature10°C – 45°C (50°F – 113°F)
Dimensions and weight
Device with 2 pressure chambersw 460 x h 160 x d 330 mm

(w 18.1 x h 6.3 x d 13 in)

8 kg (17.6 lbs)

Device with 6 pressure chambersw 550 x h 200 x d 430 mm

(w 21.6 x h 7.9 x h 16.9 in)

20 kg (44.1 lbs)