The Golden State: Where & How to Live, Secure, Visit, Enjoy and Thrive in California

New Handy Site On Plumbing

The positions of the bells are so adjusted that compressed air is not admitted until the Ejector is filled, and is not allowed to exhaust until the Ejector is emptied down to the discharge level; thus a specific quantity is discharged each time the Ejector operates.

A steel ejector pit surrounded with concrete is recommended for deep basements in city buildings. On other work reinforced concrete will ordinarily be found satisfactory.

When steel pit with dished bottom is used, a level concrete floor should be laid in bottom of pit before ejectors are set.

Anchor bolts for ejectors are not required.
Screening of sewage is not necessary.

Capacities are based on one discharge per minute, and therefore represent the actual quantity discharged at each operation. The ejectors can be operated at more than one discharge per minute in case of emergency, but this is not recommended for normal service.

Inlet connection may be made at either end or both ends of inlet tee or header as shown in drawing.

Air compressing plant may be located at any desired distance from ejectors. It should include air compressors, steam or electric driven, with automatic control and suitable air storage tank with pressure gauge, blow-off cock and relief valve. For electric drive, horizontal crank-and-fly-wheel compressors are recommended, although vertical high speed compressors may be used with satisfactory results and at lower first cost. For steam drive, direct acting locomotive type compressors may be used for small installations except where low steam consumption is desired. In larger plants and in all steam installations where low steam consumption is essential, crank-and-fly-wheel compressors should be used.
Underground air lines should be laid below frost line and with slight pitch toward ejector station. Gate valves should be inserted every 500 feet.

Air compressors, motors and controllers should be installed in duplicate.

Single ejectors from 400 to 1,000 gal. per min. may, if preferred, be installed in rectangular instead of round pits.