TripleLock Flue Liner

Triplelock liner, the first liner we ever made, is still a firm old favourite. Although more or less superceded by Weldline, many customers, impressed with its chunky three way locking joint and stury construction, still specify this product.

Sizes Available

63mm, 75mm, 100mm, 125mm


Approved for positive pressure.
Tested and passed by BSRIA to BSEN1856-2 T600. N. D3. Vml40010 G(25)


Maximum temperature(exceptionally) 1100 degrees Centigrade

Maximum temperature(operationally) 600 degrees Centigrade

Minimum bending radius(throat) Diameter x 6 inches or Diameter x 152 mm

Bore surface: corrugated

Bore size : Nominal +/- 4%

Outer diameter : inner bore + 6mm

BSRIA Certificate Declaration of Conformity Installation Instructions
Turner & Wilson were the first in the world to perfect continuously welded flue linings - a lead still maintained to this day.