Monarch WS200GM Submersible Grinder Pump
Monarch WS200GM: High-Performance Manual Grinder Pump
The Monarch WS200GM Submersible Grinder Pump is a robust, 2 HP sewage handling solution designed for residential and light commercial applications where standard gravity flow is not possible. Unlike the automatic “GAM” model, the WS200GM is a manual operation pump, making it the ideal choice for replacing existing pumps in systems already equipped with external control panels or float switch configurations.
Engineered to liquefy solids, the WS200GM features a high-chrome steel cutting mechanism that shreds waste into a fine slurry, allowing it to easily pass through smaller diameter pipes (1 ¼” NPT discharge). This capability makes it perfect for pressure sewer systems and long-distance waste transfer.
Eliminate the Need for Expensive Control Panels
One of the most significant advantages of the Monarch WS Series is the motor design. It features a capacitor start, oil-filled motor with internal starting components. This means the WS200GM does not require a specialized, expensive control panel to operate. It can be controlled by standard pump switches or panels rated for 2 HP, 230V, significantly reducing installation complexity and cost.
Key Features and Construction Benefits
- Superior Grinding Power: The cutting system utilizes a high chrome steel two-blade cutter with a hardness rating of 55–58 Rockwell C. The stationary cutter ring is reversible, doubling its service life, and can be replaced without dismantling the entire pump.
- Heavy-Duty Cast Iron Build: Both the motor and pump housing are cast iron, providing excellent heat dissipation and structural integrity.
- Corrosion Resistance: The pump shaft is crafted from 410 Stainless Steel, and all external fasteners are 304 Stainless Steel.
- Advanced Sealing: Equipped with hard Silicon Carbide mechanical seal faces and NBR elastomers to resist abrasion and extend seal life.
- Motor Protection: The 230-volt single-phase motor includes automatic thermal overload protection to prevent burnout.
- Impeller Design: A ductile iron, recessed, semi-open impeller features pump-out vanes specifically designed to protect the mechanical seal from debris.
- Moisture Protection: The 20 ft. power cord (14/3 SJTW) is sealed directly at the motor housing to prevent water intrusion.
Common Applications
- Pressure Sewer Systems: Grinding waste for transport through small-diameter force mains.
- Lift Stations: Replacement pump for existing manual lift station setups.
- High Head Applications: Situations requiring high vertical lift or long horizontal runs.
- Light Commercial: Small business waste management.
Technical Specifications & Performance
The following table details the specifications for the WS Series Grinder Pumps.
Submersible Grinder Pumps – Automatic and Manual
| Model No. | Order No. | HP | Volts | SFA | Phase | Ship Wt. (lbs.) | Switch | Cord Length |
|---|---|---|---|---|---|---|---|---|
| WS200GM | 620265 | 2 | 230 | 15.0 | 1 | 73 | Manual | 20′ |
| WS200GAM | 620266 | 2 | 230 | 15.0 | 1 | 75 | Automatic | 20′ |
Repair Parts List (WS200G Series)
Use the table below to identify replacement parts for the WS200GM and WS200GAM models.
| Ref. | Code # | Qty. | Description |
|---|---|---|---|
| 1 | 246218 | 1 | Cord |
| 2** | 246219 | 1 | Centrifugal switch |
| 3** | 246220 | 1 | Capacitor |
| 4 | 246221 | 1 | Housing assembly |
| 5 | 246222 | 1 | Mechanical Seal |
| 6 | 246223 | 1 | Impeller/ key assembly |
| 7 | 246224 | 1 | Casing |
| 8 | 246225 | 3 | Rubber foot |
| 9 | 246226 | 1 | Cutter ring assembly |
| N/S | 206609 | 1 | Float switch |
| N/S* | 620581 | 2.5 | Insulating oil |