CheckPoint Pumps

CheckPoint ST Chemical Filter

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CHEMICALLY INERT FILTER ELEMENT

The CheckPoint ST Chemical Filter utilizes a porous virgin PTFE (Teflon®) filter element, which is chemically inert. This truly is the only no-compromise chemical filter element, offering maximum compatibility at minimum cost. No other company offers a chemically inert filter element.

OVERSIZED SURFACE AREA

The element in CheckPoint's ST Chemical Filter is very large relative to connection size. This maximizes the time between filter element changes and minimizes pressure drop through the filter. The surface area of our 1/2" filter element has over four times the surface area of the industry standard 1/2" Y-strainer, and the 1" filter element is over 6 times the surface area of a 1" Y-strainer. This also allows us to utilize a small element porosity of just 40 microns, while achieving excellent Cv ratings.

UNIQUE DESIGN

The CheckPoint ST Filter is made to be easier to install and easier to service. The simple flow-through design minimizes pressure drop while allowing the basket to drop out without spillage for maintenance. It can be installed with close clearance yet still disassembled easily without tools in most cases.

 


CheckPoint makes the world’s most reliable chemical injection pumps and packages. On our custom and standard packages, existing filters and Y-strainers simply did not measure up to our standards, so we designed our own. The ST Filter is the only chemical filter good enough to bear the CheckPoint name.

  • CHEMICALLY INERT POROUS PTFE ELEMENT
  • MINIMUM PRESSURE DROP
  • CHOICE OF HOUSING MATERIALS
    • 316L SS
    • Kynar®
  • EASY TO DISASSEMBLE
  • LOW CLEARANCE REQUIREMENT
  • VERY LARGE WETTED SURFACE AREA

  

 

Performance Data

Model
Number
Element
Material
Housing
Material
Element
Porosity
µM
Cv Dimensions
IN (MM)
  Height       Diameter
Connections
FNPT
IN (MM)
Floor
Clearance
(MIN)
IN (MM)
Element Surface
Area in2 (MM2)
ST Filter vs Y-strainer
FSTS2-40 Virgin PTFE 316L SS 40 1.54 3.00 (76) 3.60 (91) 1/2 (12.70) (25.40) 11.2 (284.48) 2.6 (66.04)
FSTP2-40 Virgin PTFE Kynar® (PVDF) 40 1.54 3.00 (76) 3.60 (91) 1/2 (12.70) (25.40) 11.2 (284.48) 2.6 (66.04)
FSTS4-40 Virgin PTFE 316L SS 40 2.31 4.20 (107) 4.60 (117) 1 (25.40) (25.40) 18.9 (480.06) 3.0 (76.20)
FSTP4-40 Virgin PTFE Kynar® (PVDF) 40 2.31 4.20 (107) 4.60 (117) 1 (25.40) 1 (25.40) 18.9 (480.06) 3.0 (76.20)
  Larger surface area
than industry standard

 

CheckPoint
  CheckPoint Worldwide Headquarters
21356 Marion Lane Mandeville, LA 70471 - USA
toll free: +1 (800) 847-7867
Tel +1 (504) 340-0770
Fax +1 (504) 348-0704
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