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Choosing a Proper Water Mesh Filter Element

By Monica Phelan

Do you have heavy sediment or large volume of scale, debris, sand, or grit needing to be removed from your water filtration system? The right selection of water mesh filter element for your application starts with having a good understanding of how much contaminants need to be removed from your water.

 

In this blog, we will be going over the water mesh filter element application options available in the market, plus having a better understanding of the differences between polyester and stainless steel water filter mesh elements.

WHAT'S IN YOUR WATER?

 

Applications Options

POLYESTER MESH FILTER

  • All materials are non-corrosive and are ultraviolet stabilized / weather resistant.
  • Specially designed to remove large volumes of sediment.

316 STAINLESS STEEL MESH FILTER

  • Manufactured from a PVC core with a stainless steel mesh.
  • Hot Water/High Temp. are manufactured from a glass filled polypropylene core with a stainless steel mesh.
  • Specially designed to remove large volumes of sediment.

POLYESTER MESH SAND SEPARATOR ELEMENTS

  • All materials are non-corrosive and are ultraviolet stabilized / weather resistant.
  • Specially designed to remove large volumes of sediment.
  • Extended filter bowl provides greater sediment holding capacity than the standard housing.
  • The separation of the filtrate from the filter element compartment greatly reduces the abrasion on the filter element increasing its life span.

316 STAINLESS STEEL MESH SAND SEPARATOR ELEMENTS

  • Manufactured from a PVC core with a stainless steel mesh.
  • Hot Water/High Temp. are manufactured from a glass filled polypropylene core with a stainless steel mesh.
  • Specially designed to remove large volumes of sediment.
  • Extended filter bowl provides greater sediment holding capacity than the standard housing.
  • The separation of the filtrate from the filter element compartment greatly reduces the abrasion on the filter element increasing its life span.

Element can be cleaned with soft brush after the element has been soaked in 50/50 bleach and water solution to remove stains caused by iron, etc. Rinse the element thoroughly.

Mesh Filters

Polyester vs. Stainless Steel

POLYESTER MESH 

PROS

  • Very economical (stainless mesh will cost approximately an additional 15-20%).
  • Available in 9 mesh sizes for more specialized filtration applications including 24, 30, 40, 60, 100, 140, 250, 500 & 1000 mesh.

CONS

  • More easily damaged than stainless steel due to sharper sediment and particles in some applications.
  • Can be more expensive to run long term as the polyester screen wears too quickly due to abrasive sediment and frequent washing.

 

316 STAINLESS STEEL MESH 

PROS

  • Can filter sharper sediment and particles without damage to the mesh.
  • Particulate won't stick to the stainless as much as it will on the polyester (for example clay).
  • Longer life span, less likely to be damaged during cleaning of the mesh, therefore cost saving can be realized over time in applications where the mesh needs to be washed more frequently due to light particulate which cannot be removed by centrifugal force thru the spin-out action resulting in the particulate eventually glazing over the mesh.

CONS

  • More costly to purchase (15-20% more expensive than polyester).
  • A reduced selection of mesh ratings limits the range of applications; stainless steel mesh is only available in 5 mesh sizes including 30, 60, 100, 140, 200 mesh.

 

A stainless steel sand filter is the "best" way to go if you have abrasive sand and somewhat aggressive or acidic water. However polyester mesh element work great in most applications and are available in lower micron ratings than what can be achieved with stainless steel meshes.

equivalency-chart

 

Mesh Selection Guide

NOTE: The information shown here is general in nature because of the many variations in shape, size and specific gravity of the materials being filtered.

SCALE

To Protect: General Use

Mesh Number: 24

DEBRIS

To Protect: General Use

Mesh Number: 24, 30, 40

PIPE SCALE & COARSE SAND

To Protect: Sprinkler Systems, Faucet Aerators, Sand Sensitive Valves

Mesh Number: 40 to 60

FINE SAND & GRIT

To Protect: Drip Irrigation Systems, Faucet Aerators, Sand Sensitive Valves

Mesh Number: 100 to 140

To Protect: Poultry Growers Watering devices (0.010")

Mesh Number: 100 (0.006" opening)

To Protect: Fogger Nozzles

Mesh Number: 140 (0.004" opening)

VERY FINE SAND & GRIT

To Protect: Pre-Treatment

Mesh Number: 250 to 500

To Protect: Pre-Treatment, Ultra Water Systems, R.O. etc.

Mesh Number: 1000

ALGAE

To Protect: Grows in presence of light under clear filter cover

Mesh Number: Use Sun Shield

In general, use the coarsest screen deemed necessary to filter the material you want removed. This will result in longer runs between blowdowns.

 

Now that you have a better understanding of the applications and the differences between polyester and stainless steel water mesh filter elements, and the knowledge of how to prevent fine micron post-filtration cartridges from plugging prematurely, you've learned you can lower your over-all filtration costs by using as a pre-filter in duplex filtration systems.

 

For more information, check out our 'Choosing the Proper Water Filtration Solution'. 

Tags: Water Filtration