Internal/External Adaptor Seal Specifications

The Internal/External Adaptor Seal (I/E.A. Seal) is a sanitary manhole seal which prevents infiltration into the sewer system. The I/E.A. Seal stops inflow between the manhole frame and the top adjusting ring, it also seals the manhole chimney from the frame to the corbel.

 

The design of the I/E.A. Seal produces a rubber gasket seal, which seals the manhole frame and allows it to move with the road surface due to frost movement and thermal expansion. It also produces a stress barrier between the frame and the manhole chimney from direct load bearing of the traffic.

 

This will help preserve the integrity of the manhole chimney.

Internal/External Adaptor Seal Spec

All sanitary manholes shall be provided with an Internal/External Adaptor Seal with a rubber sleeve to seal the outside of the chimney from the manhole frame down to the corbel. The I/E.A. Seal shall be installed per Adaptor Inc. installation instructions.

Ordering Information Needed

Casting I.D. #example:   (Neenah 1550)

                                  (East Jordan 1022-Z2)

 

 

The I/E.A. Seal is being used on rehabilitation projects in Wisconsin and Illinois.

Sleeve Length Required:   

                                (10”  12”  14”  16”  18”)

O.D. of Adjusting Ring:   

                                (34”  35”  36”  37”  38”)

1.

2.

3.

MANHOLE FRAME

BUTYL RUBBER SEAL

6” RUBBER

CASTING SLEEVE

BUTYL RUBBER SEAL

RUBBER SLEEVE

STAINLESS STEEL

CLAMP & BAND

CONCRETE ADJUSTING RINGS

I.A.S. RING

RECYCLED RUBBER

DIRECT SEAL BETWEEN

FRAME & I.A.S. RING

1/2”

3/4”

Pat. #  6,044,590