No More Duct Leaks With Our New Three-Part System

Leak-Free gaskets - Leak-free o-rings - Epoxy Caulking

Sealing Joints Between Ducts – It’s a Snap with our Leak-free gaskets
The molded Nitrile gaskets slip easily onto one end of the duct and are connected with a standard Q-F clamp to form a tight and re-useable seal. Note the direction of the airflow when installing the duct.

Wipe rolled edge with clean cloth. Then apply a high tack gasket adhesive per the manufacturer’s instructions. High tack gasket adhesives can be purchased locally at industrial or automotive suppliers in either aerosol spray or brushable formulations.

Carefully place the gasket along the rolled edge of the part, being careful to avoid kinks or voids. Only one gasket is needed per joint.

Join the gasketed end of the pipe to a non-gasketed end of the next part in the ducting run using a standard Q-F clamp. The oil-mist gasket, in addition to the gasket inside the Q-F clamp, provides dual protection against leakage.

Leak-Free Gasket - Technical Data

• General purpose oil resistant polymer
• Preforms well with many oil, water and hydraulic fluid applications
• Good tear resistance
• Available in 4”-10” diameter. Only even sizes in 12”-24” diameter

• Should not be used with solvents such as acetone, MEK, ozone, chlorinated hydrocarbons, and nitro hydrocarbons
• Conducts Electricity

Classification:
1. ASTM D-2000 M2BG510 A24 B34 EO14 EO34 EF11 EF21

Temperature Range:
Low Temperature Range: -30° F to +225° F
Intermittent: +280° F

The Q-F Leak Free O-ring for use with our Adjustable-Length Duct
The patented Nordfab “adjustable nipple” provides unlimited flexibility in the length of a duct run.
 

1. Cut a standard piece of pipe to length and insert it into the short adjustable nipple section. This assembly will telescope to any length. Place the soft grey o-ring seal onto the cut (inside) piece of pipe and seat it evenly against the rolled metal edge of the adjustable nipple.
    
    
2. Place the harder black o-ring seal against the outside of the inner grey seal. The order should be as follows:
   1. rolled edge or nipple; against
   2. soft, small-diameter o-ring; against
   3. standard Nordfab o-ring 
       
       
3. Finally clamp the standard Q-F clamp over the rolled metal edge of the adjustable nipple and the hard rolled black o-ring for a leak-free connection. [Make sure both seals fit completely under the clamp and that the air-flows from the cut pipe towards the adjustable nipple].

O-rings Technical Data

Leak-Free O-ring

• Resists corrosion from weather
• Performs well with many oils and chemicals
• Can’t be damaged by flexing and twisting

Classification:
1. ASTM D-1056-68.................SBE43
2. ASTM D-1056-85, 91, 98.........2B3

Temperature Range:
Low Temperature Range: -30^oF to 225^oF
Intermittent: +280° F

Standard O-ring

• Recommended for petroleum oils and fluids,water, greases, and oils

Classification:
1. ASTM D2000 M2BG510 A14 B14 EA14 EO14 EO34 F17

Temperature Range:
Low Temperature Range: -30^oF to 225^oF
Intermittent: 250° F

Custom Parts – High Quality Duct with Epoxy Caulking
Nordfab’s laser welded longitudinal seams are guaranteed to be leak proof. To ensure that other welds and gores on branches, elbows, and other custom parts are leak-free, Nordfab uses a patented epoxy caulking. These parts can be installed in seconds using the standard Q-F clamp and the between-the-joint gaskets.

*Due to variables beyond our control, Nordfab cannot guarantee a leak proof system in all installations, even when using the Epoxy caulk & “Leak free” gaskets. Some of the variables that impact this include; the craftsmanship of the duct instillation, the chemicals within the duct, and the expertise of the designer.