AMT 429A-98 Stainless Self-Priming Pump, 1 in., 1/2 HP TEFC
If you need a pump that can move demanding liquids without babying it every time it loses prime, the AMT 429A-98 is built exactly for that job. Its housing and impeller are investment-cast from 300 series stainless steel, giving it the corrosion resistance and chemical compatibility that lighter-duty pumps simply can't match. Paired with a Viton mechanical seal and O-ring, it's designed to handle fluids with a specific gravity up to 1.6, including non-flammable chemicals like perchloroethylene, without breaking down under repeated use.
What makes this pump genuinely convenient in day-to-day operation is its self-priming capability, drawing liquid from up to 6 feet of vertical lift without a foot valve or manual priming routine. The semi-open, self-cleaning impeller helps it shrug off small amounts of debris rather than clogging, which matters a lot when you're transferring liquids that aren't perfectly clean. Behind it all sits a 1/2 HP TEFC motor, totally enclosed and fan-cooled, so it can run in dusty or damp environments where an open motor would eventually fail.
Whether you're moving chemicals in a manufacturing plant, handling liquid transfer in an industrial process line, or simply need a dependable pump for a demanding application, the 429A-98 delivers steady flow and pressure without a lot of maintenance overhead. It's a straightforward, no-nonsense workhorse for anyone who needs stainless steel durability and self-priming convenience in one compact unit.
Key Features
- 300 series investment-cast stainless steel construction
- Self-priming to 6 ft of vertical lift
- Semi-open, self-cleaning impeller resists clogging
- Viton mechanical seal and O-ring for chemical compatibility
- Handles liquids with specific gravity up to 1.6
- 1/2 HP TEFC (Totally Enclosed, Fan Cooled) motor for enclosed or dusty environments
Applications
- Chemical transfer, including non-flammable liquids such as perchloroethylene
- Industrial liquid handling and process transfer
- Manufacturing and processing plant fluid transfer
- General-purpose transfer of liquids requiring corrosion-resistant construction
- Situations where a self-priming pump avoids the need for a foot valve
Specifications
- Model Number: 429A-98
- Pump Type: Self-priming centrifugal pump
- Construction Material: 300 series stainless steel
- Impeller: Semi-open, self-cleaning, stainless steel
- Seal: Viton mechanical seal and O-ring
- Port Size: 1 in. NPT suction and discharge
- Motor: 1/2 HP, TEFC, 1 Phase
- Voltage: 115/230 VAC, 60 Hz
- Maximum Working Pressure: 75 PSI
- Maximum Head: 68 ft
- Self-Priming Lift: Up to 6 ft
- Maximum Temperature: 200°F
- Maximum Specific Gravity: 1.6
- Motor Frame: 56J
Frequently Asked Questions
Q: Can the AMT 429A-98 run dry without damage?
A: No, this pump relies on liquid for lubrication and cooling of the seal, so it should not be run dry for extended periods, as this can damage the mechanical seal.
Q: Is this pump suitable for flammable liquids?
A: No, the 429A-98 is designed and recommended for non-flammable liquids only, including chemicals like perchloroethylene.
Q: Does the pump need to be primed manually before each use?
A: No, it is self-priming and can lift liquid from up to 6 feet below the pump without manual priming, though it should be filled with liquid the very first time it is put into service.
Q: What kind of solids can this pump handle?
A: The semi-open, self-cleaning impeller is designed for liquids with minor solids content, not for heavily solids-laden or abrasive fluids.
Q: Can this pump be mounted vertically or only horizontally?
A: The 429A-98 is designed for standard horizontal mounting on a stable base, which supports proper motor cooling and shaft alignment.
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