Stainless Steel Flexible Liners for Re-Lining Masonry Chimneys
For Gas Fuel Appliances

Flexmaster is a stainless steel flexible liner available from 3" to 22" Diameters which, when installed
into a masonry chimney produces a continuous and unbroken flue from appliance to outlet.
This prevents flue gasses escaping though disintegarting brickwork and provides the optimum flue
diameter for the appliance.

»Technical Information
For gas fired appliances and appliances using up to 28 sec oil Triple Lock Joint accepted by industry as the strongest joint system available Deep corrugation format for greatest strength and flexibility
Specialist supply of large diameter liners in single continuous lengths All sizes and lengths are available for delivery ususally within 24 hours. A wide variety of terminals is available, suitable for most requirements.

» Spirally wound corrugated flexible liner
» Manufactured from 316 grade stainless steel
» Withstands temperatures of up to 250°
» A wide range of diameters available from 80mm to 560mm
» Approved to BS 715 & BS EN 1856 - 1

All code numbers required to be prefixed by GF/- see CODES

»Clamp and Plate
For diameters in excess of 150mm (6"), separate plate and clamps are used.
Clamps are supplied in pairs.

»Joiner
Joiners must not be used on flue linings serving gas appliances.
The ends which are to be joined are inserted between the skins of a short length of twin walled stainless steel pipe. There are secured with self tapping screws through holes provided.

»Combined Clamp Plate
This is used at the top of a chimney to secure Flexmaster for diameters up to 150mm (6")

»Terminals
A suitable terminal is required to prevent the ingress of rain and birds. There are many different
types of terminal, depending upon the appliance, appearances etc (see chimney cowls)
For diameters up to 200mm (8") the flue terminal must be approved by British Gas or be tested
to BS715.