THE GRIEVE CORPORATION developed a gas-fired, high-temperature walk-in oven used for heat cleaning large valve bodies. The workspace dimensions are 60-in. wide by 120-in. diameter by 78-in. high. Capable of heating to 1,000°F, the chamber’s 880,000 BTU are installed in a modulating natural gas burner to heat the oven chamber, while a 12,500-CFM, 10-HP recirculating blower provides combination airflow to the workload.
This oven has 8-in.-thick insulated walls made from two inches of 1,900ºF block and six inches of 10 lb/cf density rockwool.
The unit’s heat chamber is top-mounted, and it has a 16-gauge aluminized steel oven interior, 16-gauge stainless steel heat chamber interior, and 16-gauge aluminized steel exterior.
Inner and outer door gaskets are provided, with the inner gasket sealing directly against the door plug and the outer gasket sealing directly against the face of the oven.
The 6-in. insulated oven floor has truck wheel guide tracks; Grieve also offers an 8,000-lb capacity flatbed loading truck with this walk-in oven.
All safety equipment required by IRI, FM, and NFPA Standard 86 for gas-heated equipment are provided on the oven, including a 1,500 CFM, 2-HP powered forced exhauster.
The process control package includes a digital programming temperature controller.