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No. 990 is an electrically-heated, 500ºF (260ºC) walk-in batch oven from Grieve, currently used for curing composite materials in vacuum bags at the customer’s facility. Workspace dimensions of this oven measure 60” W x 60” D x 72” H. 40KW are installed in Incoloy-sheathed tubular elements to heat the unit, while a 3300 CFM, 2-HP recirculating blower provides a combination horizontal/vertical airflow to the workload.
This Grieve walk-in batch oven features 4” insulated walls throughout, aluminized steel interior and exterior, plus a four-position vacuum manifold, with gauge and hand valve for each position.
Controls and safety equipment on No. 990 include a digital programming temperature controller, manual reset excess temperature controller with separate contactors, recirculating blower airflow safety switch and SCR power controller. An integral five-point thermocouple jack panel is installed through the oven wall.
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