![]() ![]() ![]() Side Vent – a vent connected to the drain pipe via a fitting at a maximum angle of 45 degrees to the vertical. It is also an auxiliary vent that connects the vent stack to the soil or waste stack in multistory buildings and is used to equalize pressure differences between them.īlind Vent – a vent pipe which terminates at the upper side of the fixture and does not connect to the drainage system, with the intent of cheating.įixture Vent – a vent pipe connecting the drainage pipe to another vent pipe or to the atmosphere.īranch vent – a vent that connects one or more individual vents to a vent stack or stack vent. Relief Vent – A branch connected to a horizontal branch between the fixture branch and the soil or waste stack, the primary function of which is to provide air circulation between the vent stack and the soil or waste stack. Loo p ed Vent– These types of vent systems are used in fixtures in a room away from a wall or partition. A Looped Vent-a type of ventilation system used in fixtures in a room away from a wall or partition. It is also a branch vent serving two or more fixtures that are connected to the same stack into which the fixtures discharge. Loop Vent/Venting Loop -A vent arrangement for a group of plumbing fixtures consists of a vent pipe which is connected to the waste or soil branch immediately before the first fixture of the group. Unit/Common/Dual/Duplex -It is an arrangement of vents installed in such a way that one pipe serves two (2) traps.Ĭircuit Vent -A branch vent serves two or more traps and extends from in front of the last fixture connection of a horizontal branch to the vent stack. Thus, a group of fixtures such as those from a bathroom and a kitchen can be installed without providing individual fixture vents-provided each fixture drain is independently connected to the stack and the water closet and bathtub or shower stall drain enter the stack at the same level. Stack Venting– continuous venting of a single future or a group of futures directly into the soil or waste stack. Stack Vent, Soil or Waste Vent -The expansion of soil or debris stacks (to the open air) is limited by the highest horizontal branch, drain, or fixture branch connected to the stack. Grease duct (DIS only)ĥ″-12″ diameter pipe features inner wall options of. Factory built for boiler breeching, engine exhaust, and chimney stack. The DIS is lined with the highest-quality insulation, densely packed to ensure low heat loss, maximum draft and a 1″ clearance to combustible materials.ĥ″-36″ DuraStack® Model DIS/DAS is a modular double-wall positive pressure chimney system. 018″ Stainless Steel 304, 316 or Galvalume® (Aluminum-zinc coated) steel outer wall. For premium corrosion resistance and durability, the inner wall is constructed from. Coupling configuration (patent pending) requires only one locking band and the use of a regular, less expensive, high-temperature silicone sealant.Īvailable in sizes from 5″ to 36″ diameters, the DIS line offers double-wall, 2″ insulated chimneys, and the DAS offers a 2″ air insulated product. Self-centering flue design significantly simplifies and accelerates the installation process. ![]() Thick-gauge material for the inner pipe and coupling provides a strong and rigid assembly. Grease duct (DIS only) and diesel exhaust applications. Certified for commercial chimney as a modular double-wall positive pressure chimney system. The DuraStack® Models DIS and DAS venting systems are designed to offer the ultimate in installation convenience and versatility for a variety of applications.
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