Saturday, October 5, 2013

Grieve Walk-In Batch Ovens

Anderson-Bolds is the Ohio and Kentucky Rep for  GRIEVE  Ovens

Use Our Grieve Oven Application Data Sheet or call 216-360-9800

Grieve Walk-In Ovens

Grieve Walk In Ovens for paint baking, drying, preheating, annealing or any other heat processing of large or numerous parts at temperatures to 750°F. Oven size conveniently accommodates materials handling equipment. Choice of either combination or full horizontal air flow in either rear or top mounted heat chamber configurations. Designed and constructed for long, hard, continuous use.


Standard Truck Ovens from Grieve meet the requirements of National Fire Protection Association Standard 86, Industrial Risk Insurers, Factory Mutual and OSHA standards. For some applications, such as those involving flammable solvents or hazardous locations, the above organizations require additional safety devices.
— Digital, microprocessor based, thermocouple actuated, indicating temperature controller
— Modulating burner on gas ovens
— Motor control push buttons and on-off heat switch
— LED pilot lights
Safety Equipment — Electric Oven
— Adjustable, thermocouple actuated, manual reset excess temperature interlock
— Separate heating element control contactors
— Recirculating blower air flow safety switch
Safety Equipment — Gas Oven
—Adjustable, thermocouple actuated, manual reset excess temperature interlock
—Electronic flame safeguard protection
—Powered forced exhauster for combustion venting
—Exhauster air flow safety switch
—Recirculating blower air flow safety switch
—Two pilot safety shutoff valves with leak test stations
—Two main safety shutoff valves with leak test stations (Industrial Risks Insurers vent valve only provided on specific request)
—Valve position indicator on main safety shutoff valves
—Over 400,000 BTU/HR safety shutoff valve interlocked with
purge timer
—Purge timer
—High gas pressure switch
—Low gas pressure switch
—Choice of air flow patterns
—Adjustable opposed louvers on full coverage supply and return
duct work
—Choice of rear or top heat chamber
—Available with doors at each end
—Choice of floor configurations, flat plate, insulated floor, truck
wheel guide tracks
—Exceptionally heavy duty doors
—Aluminized steel interior
—Aluminized steel exterior with enamel finish
—High temperature door gasket with stainless steel spring insert
—6 lbs/cf density industrial rockwool insulation
—Brushed stainless steel control panel face
—1 year limited warranty
Every oven fully assembled and individually factory tested 

All Models
— 208 volts, 3-phase, 60 Hz
— 230 volts, 3-phase, 60 Hz
— 460 volts, 3-phase, 60 Hz
— Other electrical characteristics available

Aluminized steel interior. Carbon steel structural members and steel plate painted with high temperature aluminum paint. Trilite Green enamel painted aluminized steel exterior. 

Two Air Flow Patterns Available
Combination air flow for random shapes and sizes or for large bulky objects where heated air can move upward, around and through the load. Horizontal air flow for applications where heated air must move sideways to pass through a load such as trays or flat sheets. See circulation diagrams below.

Horizontal Air Flow
Heated air is blown horizontally across the work space between full coverage duct work. For shelf truck loading applications with densely loaded shelves, solid bottom trays, or flat sheets where heated air can only pass sideways above and below each level. Also used on oven floor or loaded on a flat bed truck. 

Combination Air FlowHeated air is provided from full coverage supply duct work at each side of the work space and sweeps upward through the load to a return duct at the top of the work space. Used in most shelf truck loading applications where sufficient shelf area is left open to allow vertical air movement upward through the loaded truck. Ideal for large parts placed directly on oven floor or loaded on a flat bed truck.

Two Oven Configurations Available
Rear heat chamber for easy handling, low profile equipment. Top mounted heat chamber to minimize factory floor space occupied or to allow installation of doors at each end. Doors on front and rear allow for pass through operation or for loading from both ends.

To facilitate shipping and handling, top mounted heat chamber ovens are available with removable heat chambers. These ovens are fully assembled and tested. They are then sectioned and match-marked for easy reassembly at destination by customer.
Ovens come standard with steel plate floor and doorsill which oven doors seal against. If specified, doorsill can be eliminated and doors provided with drag seals. Up to 6' wide work space, plate floor is 1/8" thick. Wider ovens have 1/4" plate floor. Provisions for customer installed insulated floor are included. Optional factory installed insulated floor is available. See Bulletin WI-513.
Optional truck wheel guide tracks for loading equipment are available. Guide tracks can be installed on steel plate floor, recessed into insulated floor, or installed on top of insulated floor. See Bulletin WI-513.
Optional loading trucks specifically designed for use in each oven are available. Loading trucks come in shelf loading models with removable shelves or as heavy duty flat bed models with grating surface. See Bulletin WI-513.
Electric Models
Each features completely wired, side access UL listed control panel enclosing terminals for incoming power, temperature controllers, push buttons and pilot lights. Motor starter and heating element contactors electrically interlocked to shut off heaters if power to blower is interrupted and to permit operation of blower without heat for cooling. Incoloy sheathed tubular heating elements.

Gas Models
—1,000 BTU natural gas at 6" water column pressure: 
1" NPT inlet to 350,000 BTU/HR; 
1-1/4" NPT to 1,200,000 BTU/HR
— Other gas characteristics available

Control panel as detailed above and safety devices as listed on the front of this bulletin. A 325 CFM powered forced exhauster is included up to 800,000 BTU/HR; at 1,200,000 BTU/HR a 650 CFM exhauster is included. Both exhausters have 6" outlets. Automatic pre-ignition purge period and push button electric ignition contributes to ease of operation. Modulating gas burner is protected with electronic flame safety relay.


Watlow Fire Bar Heaters and Elements

Anderson-Bolds sells Watlow Fire Bar Heaters and Elements

Watlow’s FIREBAR heaters with flat surface technology provide faster heat-up and recovery times than standard round tubular heaters. Their unique shape minimizes coking and oil degradation, and enhances the flow of the oil past the element’s surface, helping to pull heat away from the heater sheath. The heater lasts longer because it runs at a significantly lower sheath temperature than an equal watt density round tubular. This also prolongs the life of the oil or shortening and reduces costs from frequent changing.
Because of its design and geometry, a FIREBAR heater will heat viscous fluids from ambient temperature faster than tubular elements with the same wattage and at a lower sheath temperature. Other advantages of the FIREBAR heater’s flat surface technology include:

Buoyancy force – The flat geometry of the FIREBAR heater creates the physical principle of buoyancy force that lifts the oil into the work zone and makes this product superior to round tubular heaters.

Smaller dimension normal to the flow – The element’s width or thickness is 0.235 in. (5.9 mm). Compared to a 0.430 in. (11 mm) round tubular element, this relative thinness further reduces drag on liquids or gases flowing past the heater, resulting in better heat transfer, quicker heat up and lower sheath temperature.

Reduced watt density - The surface area per linear inch of a FIREBAR is 70 percent greater than the 0.430 inch (11 mm) diameter round tubular element. The FIREBAR, is nearly 13 percent greater. This translates into longer heater life with optimum performance.

The lower profile design of the 58-inch FIREBAR heater packages 13 percent greater wattage than an equal length, commonly used tubular heater. This heater is available in two-coil construction, while the one-inch FIREBAR heater offers three-coil, three-phase construction.
Perfect for oil immersion applications, such as open and pressure fryers or smaller countertop fryers.

FIREBAR Specifications

Dimensions: one-inch FIREBAR: 1.010 inch (25.7 mm) height, 0.235 inch (5.9 mm) thickness; 58-inch (16mm) FIREBAR: 0.650 inch (16.5 mm) height, 0.235 inch (5.9 mm) thickness

Watt densities:

One-inch (25 mm) FIREBAR, double-ended, up to 120 W/in2 (18.6 W/cm2), single-ended, up to 60 W/in2 (9.3 W/cm2); 58-inch (16mm) FIREBAR, double-ended, up to 90 W/in2 (13.9 W/cm2), single-ended, up to 80 W/in2 (12.4 W/cm2)

Incoloy® sheath temperatures to 760°C (1400°F)
304 stainless steel sheath temperatures to 650°C (1200°F)
Three resistance coil design, available in 1- or 3-phase
on FIREBAR only
Amperages on FIREBAR to 48 amps per heater or
16 amps per coil; amperages on FIREBAR to 25 amps per heater on single-ended and 32 amps per heater or 16 amps per coil on double-ended
Mounting options: mounting brackets, water-tight bulkheads, water-tight double leg threaded fitting
UL® and CSA component recognition, CE (Declaration of Conformity) available on request