Doors available with or without wallbox and bent tube panel
Bent tube panels can be made from smooth or weld overlay tubing and come completely assembled
All doors come with P&I’s unique replaceable refractory cap shop installed (no field pouring of door refractory needed!)
All doors rated for 2800°F continuous operation/3000°F max excursion temperatures
Heavy duty cast door resists warping to maintain gas seal for the life of the door
Yoke and door swing opposite of each other to allow for maximum open area
Some wallboxes may be shop filled with refractory to eliminate any field refractory work
P&I’s unique combustion of refractory cap, air gap, and rigid insulation provide industry best cold face temperatures
P&I Boiler Access Doors
Optional Nanosteel coating applied to hot side surfaces to resist corrosion & water
Bent & straight tubes shop welded into wallbox
Plain or weld overlay tubing
Replaceable refractory cap
Bolt on design for easy replacement
Rated for up to 3,000°
Heavy duty hand wheel & yoke provide easy access & gas tight closure
Shop installed wallbox refractory form – must remove after pouring!
Heavy duty cast iron door with integral seal pocket
Braided ceramic fiber gasket
Shop installed Peg Fin or solid membrane in the crotch areas Membrane shop installed & split
Duct/SCR/Penthouse Access Doors
Heavy-duty Cor-Ten Door & Frame Construction
1” Thick Rigid Insulation
1 ½“ Thick Rigid Insulation
Braided Ceramic Fiberor Viton Gaskets
Protective Lightweight Aluminum Outer Helps Reduce Acid Condensation on the Inner Door
Adjustable Outer Frame to Allow for Varying Insulation Thickness
SCR/Precipitator/Baghouse Access Doors
Catalyst Loading Door
Speed Flip Latches For Easy Opening
Davit Arm Swings the Door 180° Above
the Grating with No Lifting Required
Removable Threshold Assembly
Removable Threshold Assembly Unbolts
Bridge Plate Set In Place For Catalyst Loading and Unloading
Bag House Door – Stainless Steel
Application Examples
Wet Bottom Ash Access Door
Boiler Access Door-High Temp Inspection Port
Inspection Door
Oval Boiler, Penthouse & Roof Applications
Observation Ports
Boiler Inspection Doors
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