AMT 2850-99 Cast Iron Self-Priming Pedestal Pump
If you need a workhorse pump that can shrug off sediment, sand, and everyday debris without missing a beat, the AMT 2850-99 is built for exactly that job. This is a pedestal pump end only, meaning it ships without a motor so you can pair it with the electric motor or gas engine you already have on hand, either through direct coupling or a belt drive setup. The heavy cast iron body and dual volute design work together to cut down on radial load, which means less wear on the bearings and a longer working life even when the pump is running hard, day after day.
What really sets this pump apart is its self-cleaning, semi-open impeller. It's designed to keep moving even when the water isn't perfectly clean, handling solids up to 3/8" in diameter without clogging or bogging down. That makes it a natural fit for dewatering job sites, irrigation systems, and general liquid transfer tasks where sediment-laden water is just part of the deal. With a self-priming lift of up to 20 feet, it can pull water from a source that isn't right next to the pump, which saves a lot of hassle in setup.
Under the hood, the 2850-99 uses a Buna-N mechanical seal paired with a stainless steel shaft seal, a CNC-machined keyed shaft, and sealed ball bearings, all housed in a rugged cast iron bearing pedestal. It's rated for a maximum working pressure of 75 PSI and can handle fluid temperatures up to 180°F, with a recommended top speed of 4,000 RPM. Backed by AMT's reputation as a Gorman-Rupp company, this pump is a dependable, low-maintenance choice for anyone who needs reliable performance across industrial, agricultural, or commercial applications.
Key Features
- Self-priming lift up to 20 feet
- Dual volute design reduces radial load on bearings and motor
- Self-cleaning, semi-open impeller handles solids up to 3/8" in diameter
- Heavy duty cast iron construction with Buna-N mechanical seal
- Stainless steel shaft seal for added durability
- CNC-machined keyed shaft extension with sealed ball bearings
- Configurable for direct coupling or belt drive
- Maximum recommended speed of 4,000 RPM
Applications
- Dewatering at job sites and construction areas
- Agricultural and irrigation water transfer
- General industrial liquid transfer
- Commercial fluid handling systems
- Sediment-laden or solids-bearing liquid transfer
Specifications
- Port Size: 1-1/4" NPT suction and discharge
- Construction: Cast iron with Buna-N mechanical seal
- Shaft Seal Material: Stainless steel
- Maximum Working Pressure: 75 PSI
- Maximum Fluid Temperature: 180°F
- Solids Handling: Up to 3/8" diameter
- Self-Priming Lift: Up to 20 feet
- Maximum Recommended Speed: 4,000 RPM
- Minimum Horsepower Required: 1 HP
- Approximate Flow/Head: 65 GPM at 68 ft head
- Drive Type: Direct coupled or belt drive
- Pump Type: Pedestal pump end only (motor not included)
FAQ
Q: Does the AMT 2850-99 come with a motor included?
No, this is a pedestal pump end only. It's designed to be driven by a separate electric motor or gasoline engine, connected either directly or through a belt drive setup.
Q: What size solids can this pump handle without clogging?
The self-cleaning, semi-open impeller can pass solids up to 3/8" in diameter, making it suitable for sediment-laden or debris-heavy water.
Q: What liquids is this pump safe to use with?
It's intended for non-flammable, non-abrasive liquids that are compatible with the pump's cast iron, Buna-N, and stainless steel components. A chemical compatibility chart should be checked before use with any specific fluid.
Q: How far can the pump lift water when self-priming?
The AMT 2850-99 can self-prime and lift water from a source up to 20 feet below the pump.
Q: What horsepower motor do I need to run this pump?
A minimum of 1 HP is required, and the pump is rated for a maximum recommended speed of 4,000 RPM.
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