Monarch Submersible Sewage Pump WS52 Series & Repair Parts
Monarch WS52 Series: Industrial-Grade Residential Sewage Pumping
The Monarch Industries WS52 Series represents a robust standard in 1/2 HP submersible sewage pumps. Engineered to handle the rigorous demands of transferring raw sewage and wastewater, the WS52 is a staple in residential and light commercial applications. Distinguished by its heavy-duty Cast Iron Class 30 construction, this series offers superior heat dissipation and longevity compared to thermoplastic alternatives.
Designed for Solids Handling
Unlike effluent pumps, the WS52 Series is specifically built for sewage. It utilizes specialized impellers (Type B or C configurations) and volutes designed to pass larger solids typically found in residential sewage basins. Whether you are operating the manual WS52M or the automatic WS52AM, the internal hydraulics are tuned to prevent clogging and ensure consistent ejection rates.
Reliable 1/2 HP Motor
Powering the WS52 is a dependable 1/2 HP motor (115V or 230V options). The motor is housed in a completely sealed, oil-filled chamber. This design serves two critical functions: it provides constant lubrication to the bearing system and acts as a thermal transfer medium, keeping the motor cool even during extended pump cycles.
Service and Maintenance
The WS52 Series is designed for serviceability. It utilizes stainless steel fasteners (Ref #1, #5, #18) that resist corrosion, making future maintenance straightforward. The pump features a high-quality mechanical carbon/ceramic seal (5/8″ I.D.) to protect the motor from fluid intrusion.
Key Features
- Motor: 1/2 HP Oil-filled motor for continuous bearing lubrication and cooling.
- Construction: Rugged Cast Iron Class 30 housing and volute.
- Operation: Available in Manual (M) and Automatic (AM) configurations.
- Impeller: Solids handling impeller design (Type B or C depending on generation).
- Shaft: 416 Stainless steel motor shaft for corrosion resistance.
- Discharge: Standard NPT discharge designed for sewage flow.
Applications
- Residential Sewage Systems: Ejecting waste from basement toilets and drains to sewer lines.
- Septic Tank Transfer: Moving raw sewage into septic holding tanks.
- Dewatering: Heavy-duty sump applications where debris is present.
Repair Parts & Specifications
The Monarch WS52 Series has slight variations depending on the “Type” (Generation) of the pump. Please check your pump nameplate to confirm if it is a Type B or Type D model before ordering parts.
Standard WS52 Series (Models WS52AM, WS52M)
| Ref. # | Description | Code # (Type B) | Code # (Type D) | Qty |
|---|---|---|---|---|
| 1** | Screw #10 x 3/4 SST | 149413 | 149413 | 2 |
| 2** | Clamp | 246331 | 246331 | 1 |
| 3** | Adapter | 246330 | 246330 | 1 |
| 4 | O-ring 1 3/8 I.D. | 198080 | 198080 | 1 |
| 5 | Bolt 5/16″ UNC x 1-1/4″ SST | 225820 | 225820 | 10 |
| 6 | Cable / Cord 20 ft. | 255051 | 225076 | 1 |
| 7 | Housing | 493541 | 493541 | 1 |
| 8** | Plug assembly | 225055 | N/A | 1 |
| 9 | Motor 1/2 HP | 223151 | 223161 | 1 |
| 10 | Bearing | 110110 | 110110 | 2 |
| 11 | Insulating Oil (Liters) | 620581 | 620581 | 2.1 |
| 12 | Retaining Ring | 137911 | 137911 | 1 |
| 13 | O-Ring, Square | 198994 | 198994 | 1 |
| 14 | Adapter (Bottom) | 493552 | 493563 | 1 |
| 15 | Mechanical Seal, 5/8″ I.D. | 240160 | 240160 | 1 |
| 16 | Impeller | 493222 | 493870 | 1 |
| 17 | Volute | 493553 | 493557 | 1 |
| 18 | Screw #10 x 3/8 SST | 144432 | 144432 | 1 |
| 19 | Clamp | 116842 | 116842 | 1 |
| 20 | Split Coil Ring | 246316 | 246316 | 1 |
| 21 | Plug 1/4″ NPT Brass | 186220 | 186220 | 1 |
| 26 | Float Switch (Auto Only) | 206616 | 206616 | 1 |
*Type B models generally end in 52AM, 52M, 52SA, 52SM. Type D models generally end in 52AM, 52M. Verify your motor code number.
High Head WS52HM Series
| Ref. # | Description | 115V Model (WS52HM) | 230V Model (WS52HM-12) |
|---|---|---|---|
| 1* | Cord (Power) | 225119 (30′ SJOW-A 14/3) | 225119 (30′ SJOW-A 14/3) |
| 2 | Float Switch (Automatic) | 639603 (230V, 20ft)* | 639604 (230V, 30ft)* |
| 9 | Housing | 493543 | 493543 |
| 10 | Motor (1/2 HP) | 238262 (115V) | 238263 (208-230V) |
| 15* | Mechanical Seal | 240160 | 240160 |
| 16* | Impeller | 493802 | 493802 |
| 17 | Casing (Volute) | 493557 | 493557 |
*Note: Switch availability depends on specific model configuration (AM vs M).
FAQ Section
Q: What is the horsepower of the WS52 pump?
A: The Monarch WS52 Series is a 1/2 HP pump. This applies to both the standard sewage models (WS52M) and the high head versions (WS52HM).
Q: How do I know if I have a Type B or Type D WS52 pump?
A: The easiest way is to check the Motor Code on your pump’s nameplate. If the motor code is 223151, it is likely a Type B. If the motor code is 223161, it is a Type D. The impellers and volutes are different between these types, so verification is crucial before ordering parts.
Q: What is the oil capacity for the WS52 motor chamber?
A: The WS52 motor chamber requires 2.1 liters (approximately 2.2 quarts) of dielectric insulating oil (Part #620581).
Q: Does the WS52 come with a float switch?
A: The WS52AM (Automatic) models come with a float switch for automatic operation. The WS52M (Manual) models do not include a switch and are designed to be plugged in directly or wired to a control panel.
Q: Is the cord replaceable on the WS52?
A: Yes, the power cord is a replaceable part (Ref #6). However, it is sealed to the housing to prevent water ingress, so the replacement must be done carefully to ensure a watertight seal is maintained.