Franklin RM2 Convertible Jet Pumps – Cast Iron Shallow/Deep Well Pumps – 1/2 to 1 HP

Franklin Convertible Pro RM2 Series Cast Iron Convertible Jet Pumps – ½ HP, ¾ HP, 1 HP

The Franklin Convertible Pro RM2 Series delivers industry-leading flexibility, performance, and durability for both shallow well and deep well applications. Built with a rugged cast iron casing, a precision-molded thermoplastic diffuser, and a stainless steel impeller, the RM2 Series is engineered to provide consistent water delivery while ensuring long service life in demanding environments.

Each RM2 pump can be configured to operate as either a shallow well or deep well pump. With an internal shallow well injector installed from the factory, users can easily convert the pump for deep well use by replacing the injector with a deep well bypass plug. This convertible design, paired with the pump’s ability to lift water from depths up to 100 ft and deliver flows up to 23 GPM, makes the RM2 Series an ideal solution for homes, farms, cottages, irrigation systems, and light commercial applications.

Equipped with a high service factor 56C-frame motor, an adjustable 30/50 psi pressure switch, and NSF/ANSI/CAN 372 certification, these pumps offer reliable, potable-water–safe performance. With horsepower options ranging from ½ HP to 1 HP, the RM2 Series allows you to match pump output to your system’s pressure and flow requirements.

Key Features

Convertible Design (Shallow or Deep Well)

• Ships with shallow well injector pre-installed.

• Converts to deep well operation with a simple internal bypass plug change.

Durable Construction

• Cast iron casing with 1¼" inlet and three 1" discharge ports.

• Stainless steel impeller for corrosion resistance and long life.

• Carbon/ceramic shaft seal with nitrile elastomers ensures leak-free operation.

High-Performance Hydraulics

• Thermoplastic diffuser designed for maximum hydraulic efficiency.

• Capable of lifts up to 100 ft and flow rates up to 23 GPM.

Reliable Motor Options

• ½ HP, ¾ HP, and 1 HP single-phase models
  

Factory-Set Pressure Switch

• Adjustable 30/50 psi switch installed and ready for use.

Operating Limits

• Maximum water temperature: 140°F (60°C)

• Maximum working pressure: 150 PSI

Safe for Potable Water

• Certified to NSF/ANSI/CAN 372 for low lead content.

Electrical information

(All single-phase variants are dual-voltage.)

All single-phase models are dual-voltage (115/230 VAC).

• All models use dual-voltage motors that are field convertible between 115 VAC and 230 VAC single-phase operation.

• Amp ratings listed above are at 230V; amperage is higher when wired for 115V.

Frequently Asked Questions (FAQs)

What is the difference between a shallow well and deep well setup?

• Shallow well (0–25 ft suction lift): Uses the factory-installed injector.

• Deep well (up to ~100 ft): Requires replacing the shallow well injector with a bypass plug and installing the appropriate deep well jet assembly (two-line system).

Which horsepower pump should I choose?

• ½ HP: Small homes, cottages, small irrigation systems

• ¾ HP: Medium household demand, moderate irrigation

• 1 HP: Larger homes, heavier use, longer piping runs

Flow rate, pressure requirements, and well depth should also be considered.

Can the RM2 Series really lift water from 100 ft?

Yes—when configured as a deep well jet pump using the correct deep well jet assembly. The pump uses a two-pipe system with a jet installed down in the well to achieve higher lift.

Are these pumps suitable for potable water?

Yes. They are NSF/ANSI/CAN 372 certified, indicating compliance with low-lead requirements for drinking water systems.

Do these pumps come with a pressure switch?

Yes. Every RM2 pump includes an adjustable 30/50 psi pressure switch pre-installed from the factory.

Can the RM2 be used for irrigation?

Absolutely. The pump’s high flow capability (up to 23 GPM) and convertible system design make it ideal for irrigation, lawn watering, and sprinkler applications.

Is the motor outdoor rated?

Yes. The RM2 Series uses a 56C-frame motor designed for dependable performance in indoor or outdoor installations (with proper weather protection).

What are the plumbing connection sizes?

• 1¼" inlet (suction)

• Three 1" discharge ports (choose the port that best suits your installation)

How durable is the impeller and diffuser?

• The stainless steel impeller resists corrosion and wear.

• The thermoplastic diffuser is precision-molded for optimal hydraulic efficiency.

Both components contribute to long-term pump performance.

What is the maximum operating pressure?

The system can operate up to 150 PSI, making it suitable for higher-pressure installations when correctly configured.

Do I need to prime the pump?

Yes. As with all jet pumps, the RM2 must be fully primed before starting. Failure to prime can cause damage.