304 SS Outdoor Spherical Vent 180mm

Engineered specifically for permanent external mounting, this 180mm spherical wall vent is manufactured from certified 304 stainless steel with full traceability documentation available upon request. The hood’s radius is 90mm, matching the nominal diameter to achieve optimal aerodynamic shedding. Wall-mounting flange is integrated — no separate frame or surround needed — and accepts M5 stainless fasteners. Minimum recommended duct velocity is 2.5 m/s to prevent dust settling; maximum tested static pressure differential is ±120 Pa without deformation. All edges are deburred and radiused to prevent snagging during handling or cleaning. Internal surface is identical to external — no painted or coated interiors that could chip or degrade over time. Compatible with flexible aluminium ducting only when supported by rigid transition sections within 300mm of the outlet to preserve shape integrity and airflow profile. Preferred by contractors working on EPC-mandated ventilation upgrades, modular housing projects and heritage-sensitive retrofit schemes where visible components must retain integrity for 25+ years without aesthetic or functional compromise.