Myers HJ50D 1/2 HP Heavy-Duty Cast Iron Convertible Jet Pump

The Myers HJ50D (MPN: HJ50D) is a dependable 1/2 HP convertible jet pump designed for deep well water system installations reaching depths up to 90 feet. Engineered with a heavy-duty dual-voltage motor and durable cast iron construction, this pump delivers consistent water pressure for residential homes, farms, and rural properties.

Key Features

Dual-Voltage Capability

Equipped with a 1/2 HP motor pre-wired for 230V that includes an easy-access voltage selector switch for quick conversion to 115V in the field.

Deep Well Performance

Delivers flow rates up to 10.5 GPM at a 30 ft lift with a standard 20/40 PSI switch setting, maintaining efficient performance across deeper lifts.

Durable Construction

Built with double-ball bearing motor protection and heavy-duty components designed for continuous service and long-term operating reliability.

Simplified Maintenance

Designed for easy servicing and fully compatible with standard replacement overhaul kits to keep system maintenance straightforward.

Product Details

• Maximum Lift: Up to 90 feet
• Flow Rate: Up to 10.5 GPM
• Motor: 1/2 HP, Dual-Voltage (115V / 230V)
• Max Load Amperage: 11.2A @ 115V / 5.6A @ 230V
• Recommended Fuse Rating: 20A @ 115V / 15A @ 230V
• Pressure Switch Setting: 20/40 PSI or 30/50 PSI compatible
• Compatible Jet Package: DW50-1 (Cast Iron) or P50/DW50 (Bronze Packer for 2" wells)
• Repair Kit Model: PK50

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Performance Quick Reference

Total Suction Lift (Ft)	Capacity at 20/40 PSI	Capacity at 30/50 PSI
30 ft	10.5 GPM	9.0 GPM
40 ft	9.5 GPM	7.0 GPM
50 ft	8.0 GPM	8.0 GPM
60 ft	6.0 GPM	5.5 GPM
70 ft	5.0 GPM	4.5 GPM
80 ft	4.0 GPM	3.5 GPM
90 ft	2.5 GPM	—

Myers HJ50D FAQ

What is the factory voltage setting for the Myers HJ50D?
The pump comes factory pre-wired for 230V service. It can be easily switched to 115V operation using the internal voltage selector dial.

What size pressure tank pre-charge should I use with this pump?
Set your pressure tank pre-charge 2 PSI below your pressure switch cut-in setting while the tank is empty of water (e.g., 28 PSI for a 30/50 PSI switch setting).

Which jet package is required for deep well installation?
Deep well setups require the DW50-1 cast iron package or the P50/DW50 bronze packer assembly for 2" well applications.

Is there a brass impeller option available for this model?
Yes, for applications requiring a bronze/brass impeller, order model number HJ50D-1.

What rebuild kit is used for routine maintenance on the HJ50D?
The standard overhaul service kit for this model is the PK50 repair kit, which includes the impeller, diffuser, shaft seal, venturi, nozzle, and necessary gaskets.

Weight	39.3 lb
Connection Size	1-1/4 in.
Connection Type	Threaded
Height	8.00 in.
Horse Power	1/3
Inlet Size	1-1/4 in.
Length	14.00 in.
Material	Cast Iron
Room	Utility
Type	Deep Well Pumps
Voltage	230V, 60 Hz
Width	10.00 in.
Inventory Number	MYEHJ50-D
MPN	HJ50D