Lakos Submersible Pump Protection Separators

Defend your submersible pump and water system from the abrasive, damaging and costly effects of sand with a Lakos SUB-K Pump Protection Separator. Using controlled centrifugal action, troublesome sand is removed from the water before it enters the pump, reducing wear to impellers and other vital components.

Manufactured using state-of-the-art injection molding techniques and industrial strength composite materials, the SUB-K features no moving parts to wear out, no screens or filter elements to clean or replace and requires no routine maintenance. Trouble-free and effective, Lakos SUB-K Separators are easy to install into water wells as small as 4" I.D.

Key Benefits

Reduces sand abrasion wear to pump impellers and other components, EXTENDING the pump life 5 years or more.
Helps maintain optimum pump yield
Saves on pump energy costs with higher operating efficiency
Minimizes critical pump breakdowns
Improves flow past the pump motor, helping to cool the motor

SAND-DAMAGED SUBMERSIBLE PUMP IMPELLER

Most Popular Model
Flow: 5-12 GPM
$384.00

Price Includes Shipping

Proper Model Selection

Installation Schematics

Choose the flow rate
Select the proper model according to the actual flow rate of the pump
Submergence is important
For proper flow through the separator it must be submerged below the drawdown level of the well by at least 30 feet.
Check Well I.D.
Select the proper model based on your Well I.D.
Purging separated sand
Accumulated sand flushes from the SUB-K separator into the bottom of the well, either when (a) the pumps shuts off or (b) when the weight of the accumulated sand pushes the separator's flapper valve open. Maximum efficiency will only occur if the pump operates somewhat intermittently.
Sand storage space requirement
Allow at least 20 feet of space below the separator's purge outlet to accommodate the separated sand.

Materials of Construction

Specifications

Separator, Shell and Internal Deflector Plate
PVC composites and ABS. Seal on shell is ethylpropylene rubber with stainless steel clamp.
Flapper Valve
Fabric-reinforced neoprene rubber
Drawdown Seal
Ethylpropylene rubber on a zinc-plated steel coupling. Connection size: 1" and 1 1/4" Female, N.P.T.
Sub Seal
Nitrile rubber on a steel merchant's coupling. Connection size: 2" Female, N.P.T.

Model	Minimum Well I.D.	Flow Range (GPM)	Length	Price Includes Shipping
SUB-12-5-K	5"	5 - 12	36.5"	$384.00

Maximum Particle Size: 1/4 inch
Maximum Particle Concentration: 500 ppm
Minimum Depth of well Below Separator Setting: 20 feet
Minimum Submergence of Separator: 30 feet below pumping draw down water level

Installation Specifications

Where Does the sand go?

According to a study conducted by Ohio University and under the direction of the National Water Well Association, purged sand from a pump protection separator creates the following conditions:

1. Purged sand begins to accumulate in the bottom of the well, blocking some of the casing perforations and changing the incoming flow characteristics.
2. Forced to take a less direct path into the well, the incoming flow velocity is reduced, making it less likely that the water will carry sand into the well
3. An "equilibrium" is achieved, keeping excessive sand from entering the well.
4. The natural movement of underground water just as easily moves some sand out of the well as it does into the well.

Without a SUB-K Separator With a SUB-K Separator

Sand enters the well, then flow into the pump. The abrasion on impellers and diffusers causes damage over time Sand is removed before it enters the pump's inlet and falls into the bottom of the well.