Detective device for gas-tight on the threads of tubings & casings
This Detective device: when make-up of tubings & casings, use the high pressure increase the mixture of helium & nitrogen to the testing pressure. Take the advantage of the small size of the helium molecule & easier to escape, to test the airtightness of connections of the tubings & casings.
OD of the Tubing or Casing：2-7/8~13-3/8 in
Testing gas rating：70/105/140MPa
Leaking rating：1×10-7mbar l/s