Product Overview

The Franklin Electric 20FV1S4-2W230 is a 4 in. V-Series submersible well pump package built around a 1 HP, 230V, single-phase motor and a stainless pump end in the 20 GPM flow class. It is intended to move groundwater from a properly constructed well into a pressure-tank, water-supply, booster, or light-irrigation system when the selected operating point falls within the pump curve. Its 2-wire motor keeps the starting components inside the motor, so a separate external control box is not required.

This model combines a 7-stage hydraulic assembly, removable internal check valve, continuous-duty encapsulated motor, and a slim 3.9 in. outside diameter with the cable guard installed. The listed flow class is a sizing reference rather than a guaranteed flow at every installation. Actual delivery depends on well depth, pumping water level, elevation change, pipe size, pressure-switch setting, friction loss, and total dynamic head. Before ordering, compare the system demand with the manufacturer pump curve and confirm wire sizing, cooling flow, discharge connection, and pressure-system requirements.

A complete well system also depends on the pressure tank, pressure switch, check valves, drop pipe, electrical controls, and available well recovery. An oversized or undersized pump can cause poor pressure, excessive cycling, reduced efficiency, or failure to meet demand. Use the confirmed model and motor configuration when comparing replacement equipment, because visually similar 2-wire and 3-wire pumps require different control arrangements.

Key Features:

• 4 in. V-Series submersible well-pump design
• 1 HP, 230V, single-phase, 2-wire motor
• 20 GPM flow class
• Stainless wet-end construction
• Removable internal check valve
• 7-stage hydraulic design
• Continuous-duty encapsulated submersible motor

Common Uses:

• Residential water-well systems
• Pressure-tank and domestic water-supply systems
• Booster and storage-tank applications when properly sized
• Light irrigation or livestock-water systems when the pump curve matches demand

Technical Specifications:

• Model: 20FV1S4-2W230
• Horsepower: 1 HP
• Voltage: 230V
• Phase: Single-phase
• Frequency: 60 Hz
• Wiring: 2-wire
• Service-Factor Amps: 10.4A
• Flow Class: 20 GPM
• Shutoff Head: 251 ft
• Stages: 7
• Duty: Continuous
• Motor Type: Encapsulated submersible
• Maximum Water Temperature: 120°F
• Control Box: Not required

Dimensions:

• Discharge: 1-1/4 in. NPT
• Overall Length: 27.28 in.
• Diameter with Cable Guard: 3.9 in.
• Motor Length: 11.73 in.
• Pump Length: 15.55 in.
• Weight: 33 lb

Installation and Sizing Notes:

Confirm well depth, static and pumping water levels, total dynamic head, required flow, pressure setting, pipe size, wire size, and available voltage before installation. No external control box is used with this 2-wire motor. Follow the Franklin Electric manual for vertical placement, minimum cooling flow, electrical protection, grounding, startup, and check-valve requirements.

FAQ:

Does this pump require an external control box?
No. The 2-wire motor contains its starting components.

Does the pump always deliver the listed flow class?
No. 20 GPM is the pump's flow class; actual flow depends on total dynamic head and the pump curve.

What discharge connection is used?
The discharge is 1-1/4 in. NPT.

Can it be used for irrigation?
It can support light irrigation when the required flow and pressure fall within the pump curve and the system is correctly designed.

Why Buy From Big Frog Supply?

Big Frog Supply provides clear product information, helpful support, and convenient online ordering for water-well equipment. Confirming the correct horsepower, voltage, wiring configuration, and hydraulic requirements before purchase helps reduce installation delays and compatibility problems.