2020年9月27日 · Slip/Coupling Joint. Spiral duct can slip over the end of a fitting that is made coupling size, so that crimping isn’t required. The spiral duct will slip over the fitting until it hits a beaded section preventing it from going any further. The fitting has a bead similar to the one shown at the center of the coupling above. Welded Connections

2020年10月2日 · There are several approved methods of making a welded joint for grease exhaust ductwork. The choices will depend on the code for your jurisdiction but should include flanged, telescoping, Bell type or overlapping joints. Flanged joints are made by bending the end of the raw duct or fitting to make a ¼” flange.

Grease duct joints shall be butt joints, welded flange joints with a maximum flange depth of 1 / 2 inch (12.7 mm) or overlapping duct joints of either the telescoping or bell type. Overlapping joints shall be installed to prevent ledges and obstructions from collecting grease or interfering with gravity drainage to the intended collection point.

These are the gold standard duct connector in the industry when it comes to rectangular ducts requiring a rigid, leak-proof connection. Ductmate offers Standing S and Standing Drive Cleat in a variety of metal and gauges. Our slips and drives are also available cut-to-length.

G rease duct is an ETL listed, single w all construction made from 430 stainless steel. Duct diameters range from 8Ó to 24Ó, with multiple lengths and accessories a vailable. G rease duct is ideal for use in kitchen ventilation applica-tions and is available as a stand-alone system or part of a fully integrated package.

Grease duct joints shall be butt joints, welded flange joints with a maximum flange depth of 1 / 2 inch (12.7 mm) or overlapping duct joints of either the telescoping or bell type. Overlapping joints shall be installed to prevent ledges and obstructions from collecting grease or interfering with gravity drainage to the intended collection point.

506.3.2.1 Duct joint types. Duct joints shall be butt joints, welded flange joints with a maximum flange depth of 1 / 2 inch (12.7 mm) or overlapping duct joints of either the telescoping or bell type. Overlapping joints shall be installed to prevent ledges and obstructions from collecting grease or interfering with gravity drainage to the ...

Requirements for using an adjustable slip are a duct length less than the standard 1250mm section of duct. Cut non-standard length from standard 1250mm section of duct. Be sure that the cut section of the duct is placed into the line with the direction of airflow. Adjust the assembly to the proper length required for the space to be filled.

Duct joints shall be butt joints, welded flange joints with a maximum flange depth of 1 / 2 inch (12.7 mm) or overlapping duct joints of either the telescoping or bell type. Overlapping joints shall be installed to prevent ledges and obstructions from collecting grease or interfering with gravity drainage to the intended collection point.

We provide grease duct access doors (clean outs), drains, and fire wrap! Also Fabricating: Curb Adapters, Roof Curbs, Roof Rails, Roof Caps, Doghouses, Equipment Rails, & ManBars / Burglar Bars