tef.eu ‑ globalfire.pt Manufacturers of Fire Detection Equipment TEF‑GFE ‑ 2023 UG‑4 Duct Smoke Sampling System UG‑4 duct housing is a simple and effective solution to monitor smoke presence in ventilation ducts or other HVAC conducts. Based in Venturi effect, air sampling it's naturally aspirated because of aerodynamic shape of sampling tube. The venturi tube conducts the air from the duct to the detector housing, which is fitted to the outside of the duct, where a smoke detector detects potential fire particles in the air. UG‑4 should be installed according to air flow direction in the duct but it can be installed on any side of the duct. We recommend that the UG‑4 is mounted at an equal distance from heating, cooling or humidity devices. A distance of 3 times the duct diameter should be left before a damper, filter or change of the duct direction and 5 times the diameter after these devices to assure the presence of laminar flow. For detailed information about installation, download manual available in our website. TECHNICAL SPECIFICATIONS ORDER CODE DUCT HOUSING VR-0.6M VR-1.5M VR-2.8M DUCT SMOKE SAMPLING SYSTEM VENTURI PIPE 0.6 METER FOR UG-4 VENTURI PIPE 1.5 METER FOR UG-4 VENTURI PIPE 2.8 METER FOR UG-4 MATERIAL WEIGHT꞉ HOUSING WEIGHT꞉ VENTURI PIPE IMENSIONS꞉ HOUSING DIMENSIONS꞉ VENTURI PIPE ABS / Aluminum 708 g 0.6 m - 377 g / 1,5 m - 950 g / 2,8 m - 1760 g 180 (W) x 235 (H) x 183 (D) mm 23 (W) x 35 (D) mm
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