Product Description

We offer a full line of non-pressurized inspection doors to fit your application.

We have inspection doors that are ideal for conveying systems, storage bins, industrial applications and cargo tanks.  Ideal uses are as a fill opening in screw conveyor systems, as an inspection port, as a clean out port, as a sampling port.

The Knappco line of non-pressurized manholes feature:*

• Durable
• Lightweight
• Wing-nut hatch
• Locking hatch
• Replaceable hinge pins
• Cam levers
• Locking tabs that can be secured with a tamper proof seal

Materials available include:*

• Steel
• Stainless Steel
• SS Plated
• Aluminum

Gasket choices include:*

• Black Buna
• White Neoprene
• Teflon
• Hi-Temp
• Viton
• EPDM
• Red Silicone

*Not all models feature this specification.

We are your One Stop Shop.  Call us today for inspection doors.