No. 901 is a 1200°F (649°C), electrically-heated walk-in oven from Grieve.
Workspace dimensions of this oven measure 48" W x 60" D x 72" H. 120 kW are installed in Incoloy-sheathed tubular elements to heat the oven chamber, while a 12,500 CFM, 10-HP re-circulating blower provides horizontal airflow to the workload.
This Grieve high-temp walk-in oven features 10" thick insulated walls, comprising 2" of 1900°F block and 8" of 10 lb/cf density rockwool; inner and outer door gaskets with the inner gasket sealing directly against the door plug, while the outer gasket seals against the front face of the oven; doors equipped with expansion joints on the inner face to guarantee uniform sealing at all temperatures; aluminized steel exterior; Type 304, 2B finish stainless steel interior; 7" insulated floor with truck wheel guide tracks and a 2000 lb. capacity stainless steel shelf oven truck with shelf supports on 6" centers.
Controls on No. 901 include a 325 CFM stainless steel powered forced exhauster with motorized dampers for cooling, manual reset excess temperature controller with separate contactors, re-circulating airflow safety switch, 10" diameter circular chart recorder, digital indicating and programming temperature controller and an SCR power controller.
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