Custom Masters/Flo King
Phone: 407-331-4634
Fax: 407-331-0575

FAQ

BX650 REPAIR INFORMATION
It is very difficult for customers to replace only the motor on the BX650. Most customers with disabled Flo King BX650 motors send their complete pump to our factory repair service or purchase a Motor with Balanced Shaft Attached for repairs in the field.

MOTOR/SHAFT REPLACEMENT
See this link for pump disassembly and Motor/Shaft replacement instructions with step-by-step photos:

http://floking.com/repairs%20folder/BX1200%20Motor-Shaft%20Replacement.pdf

Before ordering a BX650 Motor/Shaft Replacement, you must first identify the pump-body length and pump material of construction.

Explanation: The BX650 is available in different body lengths and materials of construction to satisfy the many chemical solutions, temperatures, and tank variables used in metal finishing. Performance and price vary accordingly.

bx650 group lengths

The "weep hole" and impeller must be submerged at all times, or the pump will not operate. Like the propeller of an outboard boat motor, the Impeller spins at high speed and cannot perform its task without liquid contact. Solution should be at least 1 inch (2.54 cm) above the weep hole on the BX650.

cutaway

IS SERIAL NUMBER AVAILABLE?
First, check to see if the Flo King Serial Number Label on the motor is still visible.

serial number location

If the Serial Number label is no longer available or is illegible, follow the instructions below.

Note - Some Serial Numbers Untraceable: We are unable to trace some Serial Numbers, particularly older ones, because they were entered in a now-outdated database, so it is always a good idea to provide the information requested below.

MEASURE PUMP-BODY LENGTH
Refer to the dimensional drawing below. Measure the "A" Dimension (from bottom of Pump/Motor Base where pump is mounted on tank to center of threaded pump discharge port, where solution is discharged from pump). This area is highlighted in yellow.

bx650 drawing

Then see the chart below to determine if you have the BX650-4, BX650-6, BX650-8 or BX650-10.

"A" Dimension Pump-Body Length
4-1/2 inches (11 cm) BX650-4
6-1/2 inches (17 cm) BX650-6
9-1/16 inches (23 cm) BX650-8
10-3/4 inches (28 cm) BX650-10

* Stainless steel BX650 isavailable only in 10" pump-body length.

DETERMINE PUMP MATERIAL OF CONSTRUCTION
Check the color of the pump body submerged in solution. Gray in color is CPVC; white is polypro; we also offer stainless steel and Kynar pump construction.

The internal metal-shaft thread size differs for these materials (1/4 inch for CPVC and stainless-steel pumps and 3/8 inch for polypro and PVDF/Kynar pumps). This means you will be unable to screw the impeller onto the shaft if you order shafts with the wrong thread size.

MOTOR REQUIREMENTS
The BX650 is available only with single-phase motor, 115 or 230 volt. Specify motor voltage when ordering.

SOLUTION INFORMATION
To ensure that the proper internal metal-shaft material is provided to duplicate the existing pump, what is the solution type, temperature and pH?

BX650 REPAIR-PARTS PHOTOS
Click here to see photos and descriptions of BX650 repair parts.