Goulds 4NS12R4AC, 4NS Series, Sewage Pump, 40 HP, 460 Volts, 3 Phase, 4" Flanged Horizontal Discharge, 1160 GPM Max, 140 ft Max Head, 25 ft Cord, Manual
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FEATURES
Goulds 4" Submersible Non-Clog Sewage Pump
This pump can handle sewage containing non-abrasive 3 inch maximum solids. Designed with a 4" 125# ANSI flanged discharge, this model is capable of bolting to a 4-inch wet pit guide rail or to a 4 x 6 guide rail connection.
Pump Features
- Cast iron, two vane closed design impeller for high efficiency and maximum wear life. Optional bronze impeller available
- Replaceable bronze wear ring to renew the running clearances and efficiencies to original conditions
- Heavy duty cast iron, volute type casing for maximum efficiency
- Designed for continuous operation
- Dual mechanical seal with 304 stainless steel metal parts, BUNA-N elastomers with carbon/rotary and ceramic/stationary faces standard for upper and lower seals
- 300 series stainless steel fasteners
Motor Features
- CSA certified motors (Canadian Standards Association)
- Motor shaft is a one-piece design of high strength 416 stainless steel
- Motors is air-filled and designed for continuous duty when fully submerged or for up to 15 minutes operation in air
- NEMA design "B" with copper windings
- Class "F" stator winding designed for inverter duty
- Two wire dual probe monitoring system constantly monitors seal oil chamber and stator housing for moisture. (Control panel must contain an alarm circuit and alarm device)
- Two (2) normally-closed, automatic reset thermostats connected in series and embedded in adjoining phases
- Power and sensor cord is 25 feet standard length
- Motors conform to the latest applicable requirements of NEMA, IEEE, ANSI and NEC standards
- Class 10 quick trip overload protection must be provided in control panel
Applications
Heavy duty design makes this pump suitable for a wide range of commercial and industrial applications such as:
- Sewage systems
- Flood and pollution control
- Industrial dewatering
- Wastewater treatment plants
- Municipal and subdivision lift stations
| Brand | Goulds |
| Mfg. Number | 4NS12R4AC |
| Series | 4NS |
| Product Type | Sewage pump |
| Application | Commercial/Industrial sewage |
| Operation | Manual |
| Horsepower | 40 HP |
| Voltage | 460 Volts |
| Phase | 3 |
| Frequency | 60 Hz |
| Speed | 1750 RPM |
| Minimum Flow | 100 GPM |
| Pump Casing | Cast iron |
| Impeller Type | Two vane; closed |
| Discharge Connection | 4" 125# ANSI flanged 8 bolt |
| Impeller Diameter | 11" |
| Impeller Material | Cast iron |
| Minimum Casing Thickness | 5/16" |
| Casing Corrosion Allowance | 1/8" |
| Maximum Flow | 1160 GPM |
| Maximum Head | 140 ft |
| Maximum Solids Handling | 3" |
| Thermal Protection | Control panel required |
| Impeller Code | A |
| Motor Enclosure | Cast iron |
| Service Factor | 1.15 |
| Full Load Current | 49.7 Amps |
| Motor Shaft | 416 stainless steel |
| Locked Rotor Current | 261.0 Amps |
| Service Factor Current | 57.7 Amps |
| Maximum Working Pressure | 100 PSI |
| Motor Insulation Rating | Class "F" |
| Maximum Submergence | 200 ft |
| KVA Code | F |
| Full Load Motor Efficiency | 87.5% |
| Winding Resistance | 0.276 |
| Sensor Cable Size | 18/5 |
| Frame Size | 250TYS |
| Maximum Environment Temperature | 104°F |
| Chord Length | 25 ft |
| Power Cable Size | 6/4 |
Pump Products is now carrying the Goulds 4NS series submersible non-clog sewage pumps. These sewage pumps have a 4" 125# ANSI flanged discharge which allows the pump to pass wastewater containing up to 3" non abrasive waste solids. This pump can also be connected to a 4" wet pit guide rail or to a 4 x 6 guide rail connection. These 4NS series heavy duty pumps can reach high capacities and high heads and are specifically designed for a wide range of commercial and industrial level applications, such as in sewage systems, industrial dewatering systems, wastewater treatment plants, municipal lift stations and flood control. This is accomplished by pairing a ruggedly constructed pump with a powerful high performance motor. The pump itself is cast iron with two vane closed impeller with a a replaceable bronze wear ring. A dual mechanical seal with 305 series stainless steel metal components, BUNA-N elastomers and carbon/rotary vs. ceramic/stationary faces ensures leak free performance. The motor is CSA certified one-piece shaft made of 416 stainless steel. Each motor is air-filled and designed for continuous duty when fully submerged but can also operate up to 15 minutes in the air. All pumps listed below operate manually and include a 25 ft. power cord.
| Goulds 4NS Series Sewage Pumps |
Model Comparison Chart
| Model | Discharge | Horsepower | Voltage | Phase | GPM | Max. Head |
| 4NS12K4MC | 4" Fl. Horiz. | 7.5 | 460 | 3 | 900 | 55' |
| 4NS12K3MC | 4" Fl. Horiz. | 7.5 | 230 | 3 | 900 | 55' |
| 4NS12K2MC | 4" Fl. Horiz. | 7.5 | 200 | 3 | 900 | 55' |
| 4NS12L3KC | 4" Fl. Horiz. | 10 | 230 | 3 | 950 | 67' |
| 4NS12L4KC | 4" Fl. Horiz. | 10 | 460 | 3 | 950 | 67' |
| 4NS12L2KC | 4" Fl. Horiz. | 10 | 200 | 3 | 950 | 67' |
| 4NS13K3DC | 4" Fl. Horiz. | 7.5 | 230 | 3 | 800 | 51' |
| 4NS13K4DC | 4" Fl. Horiz. | 7.5 | 460 | 3 | 800 | 51' |
| 4NS13K2DC | 4" Fl. Horiz. | 7.5 | 200 | 3 | 800 | 51' |
| 4NS13L4AC | 4" Fl. Horiz. | 10 | 460 | 3 | 930 | 62' |
| 4NS13L3AC | 4" Fl. Horiz. | 10 | 230 | 3 | 930 | 62' |
| 4NS13L2AC | 4" Fl. Horiz. | 10 | 200 | 3 | 930 | 62' |
| 4NS12M3GC | 4" Fl. Horiz. | 15 | 230 | 3 | 1050 | 90' |
| 4NS12M4GC | 4" Fl. Horiz. | 15 | 460 | 3 | 1050 | 90' |
| 4NS12M2GC | 4" Fl. Horiz. | 15 | 200 | 3 | 1050 | 90' |
| 4NS12N4EC | 4" Fl. Horiz. | 20 | 460 | 3 | 1100 | 105' |
| 4NS12N3EC | 4" Fl. Horiz. | 20 | 230 | 3 | 1100 | 105' |
| 4NS12N2EC | 4" Fl. Horiz. | 20 | 200 | 3 | 1100 | 105' |
| 4NS12P4CC | 4" Fl. Horiz. | 25 | 460 | 3 | 1130 | 122' |
| 4NS12P3CC | 4" Fl. Horiz. | 25 | 230 | 3 | 1130 | 122' |
| 4NS12P2CC | 4" Fl. Horiz. | 25 | 200 | 3 | 1130 | 122' |
| 4NS12Q4BC | 4" Fl. Horiz. | 30 | 460 | 3 | 1150 | 134' |
| 4NS12Q3BC | 4" Fl. Horiz. | 30 | 230 | 3 | 1150 | 134' |
| 4NS12Q2BC | 4" Fl. Horiz. | 30 | 200 | 3 | 1150 | 134' |
| 4NS12R3AC | 4" Fl. Horiz. | 40 | 230 | 3 | 1160 | 140' |
| 4NS12R2AC | 4" Fl. Horiz. | 40 | 200 | 3 | 1160 | 140' |
| 4NS12R4AC | 4" Fl. Horiz. | 40 | 460 | 3 | 1160 | 140' |
| PERFORMANCE CURVES |
| TECHNICAL BROCHURES |
| Goulds 4NS Brochure |
| INSTRUCTION MANUALS |
| Goulds 4NS Manual |
| MOTOR DATA |
| Goulds 4NS Motor Data |
| SPECIFICATIONS |
| Goulds 4NS Specifications Sheet |
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*Note: Picture is illustrative and may not reflect the actual product.*
