•Boiler Access Doors

•Ductwork and Windbox Access Doors

•SCR/Precipitator/Baghouse Access Doors

•Combined Cycle HRSG Access Doors

• Silo Access Doors

P&I Boiler Access Doors

Features & Benefits

• 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 Fiber or 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

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