Inflatable Hatch Seal

Flat Hatch Seal	Inflated Hatch Seal

OPW developed the 7300IHS Inflatable Hatch Seal specifically for applications where loading is done through an open hatch where a vapor-tight seal is needed in the opening. The OPW 7300IHS provides a reliable means of sealing off different size and depth hatch openings on tank trucks and railcars to prevent the release of vapors into the atmosphere. As the seal is inflated, it expands outward, centering itself and forming a tight seal against the inner wall of the hatch.

Benefits

• Effective in hatches from 15" to 24" in diameter with tank pressures up to 2 psig.
• Requires no downward force to achieve a seal, so it can be used accurately on scale-equipped racks
• Fits around the inside perimeter of the hatch for a tighter seal than tapered hatch plugs can provide
• Available in EPDM, neoprene and fluorosilicone for a wide range of chemical compatibility
• Can be used on loading arms or for conventional hose loading
• Requires only a supply of dry compressed air or nitrogen for operation

Features

• Stainless steel construction
• Available in various elastomeric seals
• Comes complete with a pneumatics/nitrogen package that is preset at the factory for a maximum inflation pressure of 5 psig.
• Core assemblies are customized with the pipe sizes, lengths, and connections required for each specific application
• Optional lockdown mechanism available