Patterson H18B Yoke-Mount High-Velocity Fan

Verified current configuration

Patterson’s current product JSON identifies SKU H18B as 18" / B: 208-230V/460V (No Cord) / Yoke (Standard). That exact SKU supports this record’s current yoke configuration and B-series electrical description. The older listing title says 230/460V and describes a 24-inch product; current manufacturer wording says 208–230V/460V and the current 18-inch size section specifies a 17-inch propeller. Confirm the nameplate and supplied electrical configuration before purchase. No numeric voltage is published here because the manufacturer lists a multi-voltage configuration.

Published fan performance

The manufacturer’s 18-inch size section lists a 17-inch propeller, 3,800 CFM, and 1/2 HP. The 17-inch measurement is the actual propeller diameter, not the nominal 18-inch product size. Patterson does not state a static-pressure test condition next to that CFM value, so treat it as a listed circulation rating rather than delivered ventilation flow. The yoke option does not prove a wall, ceiling, or other installation method.

Buying limits

The B configuration is listed without a cord. Plan structural support, required fasteners, electrical connection, guard clearance, and any ventilation path separately. This high-velocity circulation fan does not by itself provide an outdoor-air, supply, or exhaust system.

Sources and alternatives

The manufacturer specification page provides the performance figures; its current model-variant data identifies the model and electrical option. Compare mounted industrial fans by their actual propeller diameter, supplied hardware, and electrical configuration. A higher CFM figure alone does not establish that a different model will fit the installation.