Type SF attached to concrete wall,

Type CF attached to corrugated metal pipe. (not for use with helical CMP),

Type FF attached to flanged iron pipe

Automatic Drainage Gates

Automatic drainage gates are used in areas with a requirement to prevent back flow, such as storm and sanitary sewer systems.

STANDARD GATES: Furnished with vertical closure for maximum ease of operation.

GENERAL INFORMATION: Gates are made of cast iron. All moving parts operate on stainless steel hinge pins. The cover is hung with cast iron arms—

Ductile iron arms on larger sizes—located at the outer edges near the center of gravity to ensure sensitive operation. For improved seating, order with neoprene seat at extra cost.

Aluminum covers can be furnished for special requirements, if specified. Also available on special order and at extra cost are neoprene or solid bronze seat mountings and bronze bushed hinges.

For applications with extreme head pressures, contact PM&I.

Specify:

1. Catalog number and diameter.

2. Type SF, Type CF, or Type FF.

3. Aluminum covers when required.

4. Other special requirements such as neoprene or bronze seat mounting or bronze bushing.