By-Pass Kidney Loop Systems

Bypass Kidney Loop Systems

Low Pressure By-Pass Kidney Loop Hydraulic Filtration Schematic

The filtration process is designed to use a low pressure source (15psi min -150psi max.) like a recirculating cooler or other pumps that do not generate pressures above 150 psi. The low pressure source pushes the hydraulic fluid into the filter housing where the 3-micron depth-type filter element absorbs free and emulsified water and traps solid particles. Once the fluid is filtered it exits the housing and is returned back into the tank. If the pressures are over 150 psi consult PFS for special flow control valves and relief valves.

PFS Guarantees after 200 hours of filtration the hydraulic fluid will be cleaner than brand new hydraulic oil.

High Pressure By-Pass Kidney Loop Hydraulic Filtration Schematic

The filtration process is designed to use a high pressure source (50 psi min – 3,000psi max.) Tee into the high pressure line and install a steel shutooff ball valve to isolate the filter housing when a filter service is required and then install a flow control valve (.5 gpm -2.0 gpm) to reduce the pressure down to 5 psi- 50 psi. The low volume low pressure hydraulic fluid will flow into the filter housing where the 3-micron depth-type filter element absorbs free and emulsified water and traps solid particles. Once the fluid is filtered it exits the housing and is returned back into the tank.

PFS Guarantees after 200 hours of filtration the hydraulic fluid will be cleaner than brand new hydraulic oil.

Application Photos

Ultimate Hydraulic Housings

All heavy duty housings are made of carbon steel with a black powder coated finish inside and out with all stainless internal wetted parts. The industrial strength housings use a bolt down cover to ensure a rugged positive seal.

Best housing warranty in the industry. 10 years.

Specifications

Model	U-150H	U-500H	U-1000H	U-2-1000H
Housing Diameter	6″	8″	8″	8″
Bracket Width	8″	10.75″	12″	24″
Length	14″	14″	24″	24″
System Dry Weight	28 lbs.	36 lbs.	50 lbs.	100 lbs.
Reservoir Sizing Recommendations	up to 40 gal.	40-100 gal.	100-300 gal.	300-600 gal.
Flow Control Valve	.25 gpm	.5 gpm	1.0 gpm	2.0 gpm
Maximum Housing Pressure	150 psi	150 psi	150 psi	150 psi
Maximum System Pressure	3,000 psi	3,000 psi	3,000 psi	3,000 psi
Make Up Fluid Required	4 qts.	12 qts.	20 qts.	40 qts.
Standard Inlet and Outlet Ports	.25″ NPT	.25″ NPT	.25″ NPT	.25″ NPT
Standard Fluid Drain	.5″ NPT	.5″ NPT	.5″ NPT	.5″ NPT
Replacement O-ring	318	433	433	433
Pressure Gauge	Optional	Optional	Optional	Optional
Relief valve (High pressure)	Included	Included	Included	Included
Water Removal Efficiency	99.90″	99.90″	99.90″	99.90″
Hydraulic Filter Element	7132	7332	7534	(2)-7534
Element Dimensions	5″ x 8 13/16″	7″ x 10″	7″ x 19 3/4″	7″ x 19 3/4″
Element Micron Rating	3 Micron	3 Micron	3 Micron	3 Micron
Beta Rating	B3<(c)=200	B3<(c)=200	B3<(c)=150	B3<(c)=150
Element Water Holding Capacity	1 qt.	.5 gal.	1 gal.	1 gal. each
Element Water Holding Capacity	2 -3 lbs.	4-5 lbs.	8-10 lbs.	8-10 lbs. each
Number of Elements Required	1	1	1	2

For larger systems go to stationary recirculating systems or contact us.

Cellulose Depth-Type Filter Media

cellulose-depth-type-filter-media

Axial flow between layers of media
Creped cellulose with interlocking layers to remove solids efficiently
Performance to B<3(c)=150 (Per ISO16889)
99.33% efficient at 3-Micron
Micron rating 1-3 micron is size
Very high solid holding capacity= 8-10 lbs per filter
Removes bacteria, algae, microbes, dirt, rust, and other solids
Can achieve very low ISO cleanliness levels
High water holding capacity= 1 gallon per filter
Will absorb free and emulsified water
Can maintain water levels to below 50ppm
Water efficiency 99.90%
Inexpensive high quality product
Long filter life: will last many times longer than conventional pleated paper filters
Most conventional filters will not remove water

Suggested Acceptable Contamination Codes

ISO 4406 Cleanliness Codes

Life Extension Factor Table

Top 20 Major Benefits

Products made in the USA
10 year housing warranty
Lifetime filter warranty
Guarantee cleaner than brand new oil after 200 hours of filtration
Filter absorbs and removes free and emulsified water
3-micron depth-type filter
Long depth-type filter life
Longer OEM filter life
Longer hydraulic fluid life
Longer pump life
Longer life for: servo valve, proportional valve, directional valve, and other hydraulic components
Filter removes the majority of contaminates that cause the most wear
Low volume-low pressure filtration through a dense filter media
Expect great ISO cleanliness codes (19/17/15 to 16/14/12)(>4/>6/>14 micron sizes)
Pressure gauge to help monitor filter life
Quick return on your investment
Lower maintenance costs
Less downtime
Cooler running system
Higher system performance
High quality proven product

How to Order a By-Pass Kidney Loop System

Model and Hydraulic Tank Sizes: Low Pressure Application (Systems from 15psi – 150 psi Max.)

Model U-150H-LP = Up to 40 gallons
Model U-500H-LP = 40–100 gallons
Model U-2-500H-LP = 200-400 gallons
Model U-1000H-LP = 100-300 gallons
Model U-2-1000H-LP = 300-600 gallons

Model and Hydraulic Tank Sizes: High Pressure Application (Systems from 50psi – 3,000 psi Max.)

Model U-150H-PRV = Up to 40 gallons
Model U-500H-PRV = 40–100 gallons
Model U-2-500H-PRV = 200-400 gallons
Model U-1000H-PRV = 100-300 gallons
Model U-2-1000H-PRV = 300-600 gallons

All PRV kits include: housing, bracket, filter, 18 foot hose with hose ends, gauge, by-pass relief valve with by-pass hose, steel shut off ball valve, flow control valve, and JIC fittings.

For larger tanks contact us for additional options.