Little Giant WS200GAM Series Submersible Grinder Pump, Oil-Filled, 2 HP
Monarch WS200GAM Series: Heavy-Duty Submersible Grinder Pumps
The Monarch WS200GAM Series Submersible Grinder Pump is a high-performance solution designed for demanding residential and light commercial sewage applications. Unlike standard sewage pumps that simply pass solids, this 2 HP powerhouse is equipped with a high-chrome steel cutting mechanism that shreds waste into a fine slurry, allowing for easy transport through smaller diameter discharge pipes with a 1-1/4 inch NPT discharge connection.
Built for longevity and reliable long-term operation, the Monarch WS200GAM Series features rugged cast iron construction and a robust oil-filled motor. One of the standout advantages of the WS200GAM is its internal capacitor start design, which eliminates the need for expensive external control panels. The pump operates using a standard piggyback float switch, making installation straightforward and cost-effective for residential sewage basin applications.
Key Features and Construction
- Superior Grinding Technology: Features a high chrome steel two-blade cutter with a hardness of 55 – 58 Rockwell C. The stationary cutter ring is reversible for extended service life and can be replaced without dismantling the pump.
- Robust Build: The motor and pump housing are constructed from durable cast iron. All external fasteners are made from 304 stainless steel to resist corrosion.
- Powerful Motor: Equipped with a 2 HP, single-phase, 230 Volt capacitor start oil-filled motor. It includes automatic thermal overload protection and upper/lower ball bearing construction.
- No Control Panel Required: This pump is designed to be used with a regular piggyback style float switch (rated for 2 HP 1/230V), simplifying maintenance and reducing installation costs.
- Advanced Sealing: Utilizes hard Silicon Carbide seal faces and NBR elastomers for long life and abrasion resistance.
- Impeller Design: Features a ductile iron, recessed, semi-open impeller with pump-out vanes specifically designed for mechanical seal protection.
- Shaft: Corrosion-resistant 410 Stainless Steel shaft.
- Power Cord: 20 ft., 14/3 SJTW power cord sealed at the motor housing to prevent moisture intrusion.
Common Applications
- Residential Sewage Systems: Grinding household waste for pressure sewer systems.
- Light Commercial: Small business locations requiring sewage ejection.
- High-Head Applications: Pumping waste over long distances or high vertical lifts where standard solids-handling pumps fail.
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 (WS200GM, WS200GAM)
Use the table below to identify replacement parts for the WS200G Series.
| 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 |
Frequently Asked Questions
Does the Monarch WS200GAM require a control panel?
Can the cutter be replaced on this grinder pump?
What is the discharge size of the WS200GAM?
Send us your model number and we will confirm fit, price, and availability.