Monarch WS50 Submersible Effluent Pump 620233
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Monarch WS50 Series: Heavy-Duty Submersible Effluent Pumps
The Monarch WS Series Submersible Effluent Pump is engineered for reliability in the toughest residential and light commercial environments. Designed for liquid effluent pumping applications, this series—including the popular WS50 (Model 620233)—delivers superior performance with solids-handling capabilities.
Constructed from robust Cast Iron Class 30, the WS Series is built to withstand rigorous use. Whether you need the 1/3 HP WS30 for smaller applications or the high-head power of the WS100, these pumps ensure efficient wastewater management. The series features a non-clog impeller design capable of passing solids up to 3/4 inches in diameter (depending on the model), making it an ideal choice for septic systems and drainage.
Key Features and Construction
- Durable Construction: Both the motor and pump housing are crafted from Cast Iron Class 30, ensuring longevity and heat dissipation.
- Non-Clog Impeller: Features a Cast Iron Class 30 impeller. The WS30 utilizes a three-vane design, while the WS50, WS50H, and WS100H use a two-vane design to effectively handle waste.
- Premium Sealing: Equipped with a mechanical carbon/ceramic Type 6, 5/8″ rotary seal for leak-proof operation.
- Motor Protection: The oil-filled chamber provides lubrication and cooling. It includes automatic overload protection and double ball bearings.
- High Torque: The Capacitor Start motor is designed for high torque and features automatic reset thermal protection (single-phase models).
- Corrosion Resistant: The motor shaft is made of 416 stainless steel, and all fasteners are stainless steel for easy serviceability.
- Automatic Operation: Select models (like the 620233) come with a Mercury-Free float switch for automatic on-off operation. The WS30 uses a piggyback style, while WS50/100 models use an SJE Pump Master.
- Discharge: Standard 2″ NPT discharge (Adaptor kit for 3″ NPT available).
Common Applications
- Septic Tank Effluent: Efficiently moves effluent to leach fields or mound systems.
- Light Commercial: Ideal for small business waste water removal.
- Dewatering: General purpose water removal where small solids may be present.
Technical Specifications & Performance
The following tables detail the dimensions, performance capabilities, and specific model numbers for the WS Series.
Dimensions (Inches)
| Model | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|
| WS30 | 1.75 | 11.25 | 3.75 | 1 | 12.25 | 4.86 | 9.38 |
| WS50 | 1.75 | 13.75 | 3.75 | 1 | 12.25 | 4.68 | 9.38 |
| WS50H | 1.75 | 13.75 | 3.75 | 1 | 12.25 | 4.68 | 9.38 |
| WS100H | 1.75 | 13.75 | 3.75 | 1 | 12.25 | 4.68 | 9.38 |
Performance Chart (Total Head in Feet vs. Capacity in U.S. GPM)
| Model No. | RPM | 5′ | 10′ | 15′ | 20′ | 25′ | 30′ | 40′ | 50′ | 60′ | 70′ | 80′ | 90′ | Shut-Off Head (ft.) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WS30 | 1750 | 105 | 90 | 70 | 45 | 15 | – | – | – | – | – | – | – | 28 |
| WS50 | 3450 | 105 | 92 | 80 | 64 | 50 | 42 | – | – | – | – | – | – | 42 |
| WS50H | 3450 | 115 | 98 | 78 | 57 | 30 | 0 | – | – | – | – | – | – | 63 |
| WS100H | 3450 | 150 | 140 | 128 | 115 | 97 | 76 | 53 | 27 | 0 | – | – | – | 90 |
Model Specifications
| Model No. | Order No. | HP | Volts | SFA | Phase | Solids Handling | Ship Wt. (lbs.) | Switch | Cord Length |
|---|---|---|---|---|---|---|---|---|---|
| WS30M | 620010 | 1/3 | 115 V | 10.4 | 1 | 11/16″ | 51 | Manual | 20′ |
| WS30AM | 620000 | 1/3 | 115 V | 10.4 | 1 | 11/16″ | 53 | Automatic | 20′ |
| WS50M-20 | 620231 | 1/2 | 115V | 11.6 | 1 | 3/4″ | 55 | Manual | 20′ |
| WS50AM-20 | 620233 | 1/2 | 115V | 11.6 | 1 | 3/4″ | 57 | Automatic | 20′ |
| WS50M-12-20 | 620251 | 1/2 | 208-230V | 9.7 | 1 | 3/4″ | 56 | Manual | 20′ |
| WS50AM-12-20 | 620253 | 1/2 | 208-230V | 9.7 | 1 | 3/4″ | 58 | Automatic | 20′ |
| HIGH HEAD SUBMERSIBLE EFFLUENT PUMPS – AUTOMATIC AND MANUAL | |||||||||
| WS50HM-20 | 620218 | 1/2 | 115 V | 15.0 | 1 | 3/4″ | 56 | Manual | 20′ |
| WS50HAM-20 | 620219 | 1/2 | 115 V | 15.0 | 1 | 3/4″ | 58 | Automatic | 20′ |
| WS50HM-12-20 | 620220 | 1/2 | 208-230V | 9.7 | 1 | 3/4″ | 56 | Manual | 20′ |
| WS50HAM-12-20 | 620221 | 1/2 | 208-230V | 9.7 | 1 | 3/4″ | 58 | Automatic | 20′ |
| WS100HM-12-20 | 620222 | 1 | 208-230V | 13.6 | 1 | 3/4″ | 57 | Manual | 20′ |
| WS100HAM-12-20 | 620223 | 1 | 208-230V | 13.6 | 1 | 3/4″ | 59 | Automatic | 20′ |
| WS100HM-32 | 620207 | 1 | 208-230V | 6.2 | 3 | 3/4″ | 62 | Manual | 30′ |
| WS100HM-34 | 620206 | 1 | 460 V | 3.1 | 3 | 3/4″ | 62 | Manual | 30′ |
Repair Parts & Components
Parts List for WS30, WS31, WS41, WS51, WS52
Model Ending In Key:
- a: 30AM, 30M, 31EA, 31EM
- b: 41AM, 41M, 41SA, 41SM
- c: 51AM, 51M, 51SA, 51SM
- d: 52AM, 52M, 52SA, 52SM
- e: 30AM, 30M, 31EA, 31EM
- f: 41AM, 41M
- g: 51AM, 51M
- h: 52AM, 52M
| Ref.# | Code # | a | b | c | d | e | f | g | h | Description |
|---|---|---|---|---|---|---|---|---|---|---|
| 1** | 149413 | 2 | 2 | 2 | 2 | Screw #10 x 3/4 SST | ||||
| 2** | 246331 | 1 | 1 | 1 | 1 | Clamp | ||||
| 3** | 246330 | 1 | 1 | 1 | 1 | Adapter | ||||
| 4 | 198080 | 1 | 1 | 1 | 1 | O-ring 1 3/8 I.D. | ||||
| 5 | 225820 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | Bolt 5/16″ UNC x 1-1/4″ SST |
| 6 | 225076 | 1 | 1 | 1 | 1 | 1 | Cord 20 ft. | |||
| 6** | 255051 | 1 | 1 | 1 | 1 | Cable, 20 ft. | ||||
| 7 | 493541 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Housing |
| 8** | 225055 | 1 | 1 | 1 | 1 | Plug assembly | ||||
| 9 | 223150 | 1 | Motor 1/3 HP | |||||||
| 9 | 223151 | 1 | 1 | 1 | Motor 1/2 HP | |||||
| 9 | 223160 | 1 | Motor 1/3 HP | |||||||
| 9 | 223161 | 1 | 1 | 1 | Motor 1/2 HP | |||||
| 10 | 110110 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | Bearing |
| 11 | 620581 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | Insulating Oil |
| 12 | 137911 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Retaining Ring |
| 13 | 198994 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | O-Ring, Square |
| 14 | 493552 | 1 | 1 | 1 | 1 | Adapter | ||||
| 14 | 493563 | 1 | 1 | 1 | 1 | Adapter | ||||
| 15 | 240160 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Mechanical Seal, 5/8″ I.D. |
| 16 | 493223 | 1 | Impeller (Type A) | |||||||
| 16 | 493222 | 1 | 1 | Impeller (Type B & C) | ||||||
| 16 | 493224 | 1 | 1 | Impeller | ||||||
| 16 | 493225 | 1 | 1 | Impeller | ||||||
| 16 | 493870 | 1 | 1 | Impeller | ||||||
| 17 | 493553 | 1 | 1 | Volute | ||||||
| 17 | 493554 | 1 | 1 | Volute | ||||||
| 17 | 493555 | 1 | 1 | Volute | ||||||
| 17 | 493557 | 1 | 1 | Volute | ||||||
| 18 | 144432 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Screw #10 x 3/8 SST |
| 19 | 116842 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Clamp |
| 20 | 246316 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Split Coil Ring, 2.75 O.D. |
| 21 | 186220 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Plug 1/4″ NPT Brass |
| 25 | 620385 | Acc | 3″ Adapter Kit | |||||||
| 26 | 206616 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Float switch |
Parts List for WS50, WS50H, WS100, WS102
Model Ending In Key:
- a: WS102M-12, WS102AM-12, WS102M-32, WS102M-34, WS102M-35
- b: WS52HM, WS52HAM
- c: WS52HM-12, WS52HAM-12
- d: WS102HM-12, WS102HAM-12
- e: WS102M-12, WS102AM-12
- f: WS102M-32, WS102M-34
| Ref Code # | a | b | c | d | e | f | Description |
|---|---|---|---|---|---|---|---|
| 225108 | 1 | 115V, 30 ft. (SJOW-A 14/3) | |||||
| 225064 | 1 | 1 | 230V, 20 ft. (SJOW-A 16/3) | ||||
| 225107 | 1 | 230V, 30 ft. (SJOW-A 16/3) | |||||
| 225119 | 1 | 1 | 230V, 30 ft. (SJOW-A 14/3) | ||||
| 225116 | 1 | 1 | 3 Phase Cords (without plug) | ||||
| 639606 | 1 | Float Switch 115V, 20 ft. | |||||
| 639607 | 1 | 1 | Float Switch 115V, 30 ft. | ||||
| 639604 | 1 | 1 | Float Switch 230V, 30 ft. | ||||
| 144432 | 1 | 1 | 1 | 1 | 1 | 1 | Screw #8 – 32 UNC x 3/8″ |
| 116842 | 1 | 1 | 1 | 1 | 1 | 1 | Clamp |
| 246316 | 1 | 1 | 1 | 1 | 1 | 1 | Split Coil Ring, 2.75 O.D. SST |
| 225820 | 10 | 10 | 10 | 10 | 10 | 10 | Bolt 5/16″ UNC x 1-1/4″ SST |
| 186220 | 1 | 1 | 1 | 1 | 1 | 1 | Plug 1/4″ NPT Brass |
| 620581 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | Insulating Oil |
| 493543 | 1 | 1 | 1 | 1 | 1 | 1 | Housing |
| 238251 | 1 | Motor 1/2HP, 115/208-230V | |||||
| 238254 | 1 | Motor 1HP, 3PH, 208-230/460V | |||||
| 110110 | 2 | 2 | 2 | 2 | 2 | 2 | Bearing (included with #10) |
| 137911 | 1 | 1 | 1 | 1 | 1 | 1 | Retaining Ring |
| 198994 | 1 | 1 | 1 | 1 | 1 | 1 | O-Ring, Square |
| 493552 | 1 | 1 | 1 | 1 | 1 | 1 | Adapter |
| 240160 | 1 | 1 | 1 | 1 | 1 | 1 | Mechanical Seal, 5/8″ I.D. |
| 493227 | 1 | 1 | Impeller | ||||
| 493229 | 1 | 1 | 1 | Impeller | |||
| 493553 | 1 | 1 | 1 | 1 | 1 | 1 | Casing |
| 620385 | Accessory | Adapter Kit 3″ |
Frequently Asked Questions
What is the difference between Manual and Automatic WS pump models?
Automatic models (suffixed with “AM” or “HAM”) include a built-in float switch that automatically turns the pump on and off based on water levels. Manual models (suffixed with “M” or “HM”) require an external control panel or switch to operate.
How much Dielectric Oil does the Monarch WS50 require?
The WS30, WS31, WS41, WS51, and WS52 models typically use 2.1 liters of Dielectric Oil. The larger WS50, WS100, and WS102 models (as shown in the second repair parts list) use 2.5 liters.
Can the WS50 model handle solids?
Yes, the WS50 series is equipped with a non-clog impeller capable of handling spherical solids up to 3/4 inch in diameter.