Heavy Duty Sump Pumps 

Bulletin 201D

FEATURES

MOTOR:
Nationally known manufacture. Single phase motors in fractional horsepower frame sizes have built-in overload protection. Other motors should be protected by magnetic starters

FLEXIBLE COUPLING:
Machined and balanced.

THRUST BEARING:

Ball bearing mounted above suspension plate in dust-proof and moisture-proof housing.

ADJUSTING NUTS:

Two bronze lock nuts for accurate vertical adjustment of impeller clearance.

SUSPENSION PLATE:

Cast iron plate has integral strengthening ribs.

DISCHARGE PIPE:

Steel, locked to suspension plate and terminates with a 45 elbow above the plate.

IMPELLER:

One-piece, bronze or cast iron, balanced, keyed and locked to shaft.

SHAFT:

Carbon steel, turned and ground, sized for maximum load.

SUSPENSION LEG:   

Heavy steel pipe fully encloses the shaft.

GUIDE BEARINGS:

Renewable bronze sleeve type intermediate guide bearing for each four feet of unsupported shaft length plus bottom guide bearing in pump casing.

CASING:

Cast iron with smooth water passages.

LUBRICATION SYSTEM:

Intermediate guide bearings are grease lubricated through flexible grease lines. Bottom guide bearings are water or grease lubricated, depending on the pit depth and the pump frame size. Alemite fittings are furnished above the suspension plate for grease line.

BASINS AND PITS:

Sump basins of cast iron, fiberglass or steel construction are available. Also, steel covers and grouting frames for concrete pits.

MODIFICATIONS AVAILABLE

DISCHARGE CONNECTION:
Under-cover tee connections; special top discharge connections.

MATERIALS OF CONSTRUCTION:
Non-standard impeller material; stainless steel shaft; all-bronze or all-iron pump; galvanized steel discharge pipe.

LUBRICATION SYSTEM:
Solenoid operated water flush for guide bearings.

NON-STANDARD MOTORS:
Totally enclosed or explosion-proof housings; special electrical ratings; other modifications.

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TYPICAL INSTALLATION

PUMP SIZING DATA

PUMP CAPACITY

INFLOW RATES
Drainage from tile footing
          (sandy soil)   ---  2 GPM per 100 sq. ft.

Drainage from tile footing
          (clay soil)   ---   1 GPM per 100 sq. ft.

Run-off from roofs or paved areas
          Maximum rainfall over 15-minute period,
          from Weather Bureau (60 gal. run-off per 1" of rainfall per 100 sq. ft.)

Bldg. located within 1,000 ft. of river or lake   ---   add 20% to inflow rate.

Basement floor more than 3-ft. below sewer level   ---   add 10% to inflow rate per foot in excess of 3 ft.

EXAMPLE
Determine the pump capacity of a sump pump to handle tile footing draining an area 40' x 100' (4,000 sq. ft.) of sandy soil and roof drains for the same area. Maximum rainfall for a 15-minute period is 1/2"

Inflow from tile footing
(40 x 2 GPM)   ---   80 GPM

Inflow from roof area
(40 x 1/2 of 60 : 15 minutes)   ---   80 GPM

Total inflow   ---   160 GPM

Pump capacity
(total inflow x 1.2)   ---   192 GPM
(Pump capacity applies to a single pump or to each pump of a duplex unit.)

PUMP DISCHARGE HEAD
The discharge head for a sump pump installation consists of the following elements:

STATIC HEAD: The difference in elevation between the lowest water level in the sump pit, and the maximum height of the discharge line.

FRICTION: Loss of head in the discharge line, including valves and other fittings.

BACK PRESSURE: Proper allowance must be made for back pressure in the sewer line, if existing.

EXAMPLE
Sump pit 5' in depth to be set in the ground, with top flush with finished floor. Basement floor 10' below highest point of discharge line. Sump pump capacity 50 G.P.M. Size of discharge line 3".

Static Head   ---   14 ft. *

Friction Head:
     discharge line   ---   2 ft.
     valves & other fittings   ---   2 ft.

Back Pressure:   ---   5 ft.

Total Dynamic Head    ---   23 ft.

*Lowest water level estimated to be 1 ft. above bottom of sump pit.

PUMP CONTROLS
The following control arrangements are available:

FS-1 (for single unit) - one float switch for start-stop control.

FS-2 (for duplex unit) - two float switches for start-stop control. The switches can be manually set to change the lead pump. Both pumps will operate if the in-flow rate requires.

FS-3 (for duplex unit) - one alternating float switch which operates the two pumps on an alternating basis and turns on both pumps simultaneously if the in-flow rate requires.

FS-4 (for duplex unit) - one alternating float switch (as described immediately above) plus two-pole emergency auxiliary float switch which will turn on both pumps at a predetermined high water level if the alternating float switch fails to operate for some reason.

FS-5 (for single or duplex unit) - a compression tube type high water alarm actuating switch with integral alarm horn. Can also provide signal for remote alarm indication. Alarm panel with bell, indicating light and silencing button is also available.

FS-6 (for single or duplex unit) - one float switch to act as a high water alarm actuator instead of the compression tube type described immediately above.

MOTOR CONTROLS
The following control arrangements are available:

For single or duplex units: (1) magnetic starter for each motor to be mounted on an adjacent wall or on the float switch pedestal(s).

For duplex units: A Type D Duplex Control Panel in a single enclosure for mounting on an adjacent wall. These panels are available as follows:

D1000: (2) magnetic starters in one enclosure.

D1100: (2) magnetic starters and (2) unfused disconnect switches in one enclosure.

D1200: (2) magnetic starters and (2) fusible disconnect switches in one enclosure.

D1300: (2) magnetic starters and (2) circuit breakers in one enclosure.

Modifications are available for magnetic starters and Type D Duplex Panels as follows: special enclosures, 'Hand-Off-Automatic' selector switches, pilot lights, control circuit transformers, manual transfer switch and automatic pump alternator.