AMERICAN STAINLESS PUMPS
Frequently asked questions
Common questions about AMERICAN STAINLESS PUMPS from 3G Electric.
What is the difference between the American Stainless Pumps 1 to 1-1/2 HP models and the 2 to 3 HP models?
The main differences are motor horsepower, maximum head, and port size. The 1 to 1-1/2 HP group, including FDP1AL, FDP1AH, FDP2AH, FDP3AH, and FDP5AL, delivers up to 64 ft of head with 1-1/4 in or 1-1/2 in intake and 1 in to 1-1/2 in discharge. The 2 to 3 HP group, including C2562443T2F, C2562443T3F, and D3621043T2F, reaches 119 ft to 150 ft of head with intake sizes up to 2 in. Voltage options also differ: the smaller group is available in 115/230V AC, while the larger group includes 230V AC and 208-230/460V AC three-phase configurations.
Are American Stainless Pumps centrifugal pumps suitable for corrosive liquids?
The pumps use stainless steel construction for wetted components, which provides better resistance to mildly corrosive liquids than cast iron or standard plastic pumps. They are commonly used for clean or mildly corrosive fluids in transfer, circulation, and cooling applications. However, stainless steel is not universally compatible with all chemicals. The specific fluid, concentration, and temperature must be checked against the pump's material of construction before installation. For strongly acidic or chloride-rich media, a higher alloy or non-metallic pump may be required. American Stainless Pumps does not publish a universal chemical compatibility rating for the entire line, so selection should be based on the individual model's materials and the intended service conditions.
What does TEFC mean on an American Stainless Pumps motor?
TEFC stands for totally enclosed fan-cooled. In this motor design, the enclosure prevents outside air from flowing through the motor housing, and an external fan blows air over the exterior fins for cooling. This construction limits the ingress of dust, dirt, and moisture compared with open or drip-proof motors. American Stainless Pumps uses TEFC enclosures across the models listed in the 3G Electric catalog, including the 1 HP FDP series and the 3 HP C2562443 and D3621043 series. TEFC motors are commonly specified for industrial environments where airborne contaminants or humidity are present, though they are not rated for submersion or washdown without additional protection.
Can I replace an American Stainless Pumps seal without replacing the whole pump?
Yes. American Stainless Pumps seal kits and gaskets are available as separate service parts. 3G Electric lists seal kits and gaskets alongside the pump units, which allows maintenance teams to plan seal replacement independently of a full pump change-out. Seal replacement is a standard maintenance task for centrifugal pumps and is typically performed when leakage is observed at the seal area or as part of a scheduled rebuild interval. The correct seal kit depends on the specific pump model and manufacturer part number, so the pump nameplate or order documentation should be referenced when selecting the replacement. 3G Electric can quote seal kits and gaskets by model or part number.
What voltage options are available for American Stainless Pumps centrifugal pumps?
The catalog includes 115/230V AC single-phase and 208-230/460V AC three-phase configurations. The 1 to 1-1/2 HP models such as FDP1AL, FDP1AH, FDP2AH, FDP3AH, and FDP5AL are listed at 115/230V AC. The 2 to 3 HP models include 230V AC single-phase and 208-230/460V AC three-phase options, depending on the specific model. Dual-voltage and multi-voltage ratings allow the same pump series to be applied across different plant power systems. The motor nameplate and manufacturer part number should be checked to confirm the exact voltage and phase before ordering a replacement or specifying a new installation.
What port sizes are available on American Stainless Pumps straight centrifugal pumps?
Port sizes vary by model and horsepower group. The 1 to 1-1/2 HP models use 1-1/4 in or 1-1/2 in intake connections and 1 in or 1-1/2 in discharge connections. The 2 to 3 HP models use up to 2 in intake and 1-1/2 in discharge. Some models have unequal intake and discharge diameters, which is common in centrifugal pump design to match hydraulic performance and piping requirements. For example, the D3621043T2F is listed with 1-1/4 in intake and discharge connections. When replacing a pump, the existing piping connections and required flow rate should be confirmed against the new model's port sizes and head curve.
