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

BX650 Filter System
The BX650 provides a maximum flow rate of 650 gallons (2400 liters) per hour. Use it stationary on one tank or move it from tank to tank. Multiple body lengths (4, 6, 8 and 10 inch) enable use of the BX650 in tanks with varying solution levels and depths.
   The BX650 comes complete, preassembled, ready to operate and includes the items shown in the labeled photo below. Click here to see BX650 video. For best results in most metal-finishing solutions, use the BX650 with our Permacore Magnum Reusable or Poly-Spun Disposable filter cartridges in the appropriate length. See this link for cartridge mounting photos.

BX650 Labeled Photo

BX650 Specifications
Pump: Available in CPVC, polypropylene, and PVDF (Kynar) as pump materials of construction. Standard internal shaft is made of 303 stainless steel covered with Teflon heat-shrink tubing. As a precaution for aggressive solutions that may attack SS, a titanium shaft and a Hastelloy-C276-alloy shaft are available for pump-body lengths of 6, 8, and 10 inches. Click here for help selecting materials of construction.
Flow Rate: 650 gallons (2400 liters) per hour at 60 Hz. A flow-rate reduction of about 18% (plus or minus 3%) is typical when operating at 50 Hz.
Pressure: 10 feet (3 meters) of head pressure.
Weight: About 9 pounds (4 kg) in CPVC, depending on pump body length
Motor: Epoxy coated, rated at 1/15th hp (50 watt), single phase, 3000 RPM, TEFC, thermally protected. Electrical cord is 10 feet (3 meters) long. When ordering, specify one of the following motors:
(1) 115 volt, 60 Hz, 2.3 A
(2) 230 volt, 50/60 Hz, 1.3A

BX650 Pump-Body Length
All Flo King pumps are manufactured in different pump-body lengths to accommodate the freeboard (distance from top of tank to solution surface) and, in many cases, tank depth. To ensure priming and proper operation, solution must be 1 inch (2.5 cm) or more above Weep Hole on BX650 pump body. The Impeller is located just beneath the Weep Hole and must be submerged in solution for the pump to operate. See this link for photo explanation.

Specify length of pump body when ordering. If you are not sure which length is required, supply all of the information requested at this link and we will recommend a system.

Or click this link for do-it-yourself guidance.

BX650 Dimensions
To determine the pump-body length of a BX650 you already have, measure the "A" Dimension (from bottom of Motor Base, where pump is mounted on tank, to center of Discharge Port, where solution is expelled from pump). Then see table below for corresponding pump model.


Flo King BX650 Drawing

"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

In-Tank Space Requirements
Most customers use the BX650 with our High-Flow 45-Degree Elbow and Outlet Extension installed on the Discharge Port, where solution is expelled from the pump. As shown here, about 5 x 7 inches (12.7 x 17.8 cm) of in-tank space is required for this arrangement. The 45-Degree Elbow and Outlet Extension allow you to direct the solution flow where desired. The Outlet Extension also streamlines flow from the High-Flow Elbow.


BX650 with Elbow in Tank

Without the 45-Degree Elbow and Outlet Extension, about 4.5 x 4.5 inches (11.4 x 11.4 cm) of in-tank space is needed.

BX650 without Elbow


  When used for filtration, the BX650 is often used with one filter cartridge. It can also be used with an optional Double Cartridge Holder accessory to hold two filter cartridges at once (photo below).


Double Cartridge Holder


  The BX650 includes a Universal Bracket to secure the pump on tank mounting surfaces up to 1 inch (2.5 cm) thick and 4-3/4 inches (12 cm) wide. Use a Phillips-head screwdriver to loosen the two screws, slide the Universal Bracket in or out to the desired position, then tighten the screws.

BX650 Universal Bracket


BX650 Parts
Click this link for photos and descriptions of more BX650 parts and accessories.

BX650 Repair Parts
Select this link to view photos and descriptions of BX650 Repair Parts.


Flo King BX650 Takes Little Space

BX650 takes up little tank space yet provides a flow rate of up to 650 gallons per hour.

Flo King BX650 Lightweight

Lightweight BX650 can be used in one tank or many.


Flo King BX650 Materials

CPVC (gray in color) and polypropylene (white) are the most popular BX650 pump materials of construction. Also available in PVDF (Kynar).


Versatile Flo King

Use versatile BX650 to pump, filter, agitate and carbon treat.


BX650 with Filter

Just insert filter cartridge
into BX650 and install
in tank.


Pump Strainer Adapter protects Impeller when Flo King is used exclusively for agitation (without filter cartridge attached).