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Filters that saved a plant from shut down. Two ASME code certified coalescing filter-separators solved a very serious problem. They now protect an existing Downstream unit filled with costly molecular sieve (over $200,000) from liquid contamination in the gas stream. Together with a second Sparks™ filter-coalescer, this unit employs an automatic drain system and removes over 500 gallons of liquid per day with over 99% efficiency.


Series R40- Enameled Carbon Steel
Series R42- 304 Stainless

Rugged Enameled Steel or 304SS Construction

Series R40 coalescing pipeline filters are fabricated from rugged enameled carbon steel, (R42 are 304SS), designed, constructed, and stamped in accordance with ASME Boiler and Pressure Vessel Code requirements for unfired pressure vessels. Any model can be modified to more exactly fit your needs.

  • Intake Air Flows to 150,000 SCFM Std.
  • ASME U Stamp Std., Nat’l. Board Registered
  • Exceptionally Low ΔP, High Flow
  • Pleated Element Design - Exceptional Useful Filter Area
  • Hinged Flange and Lift Lug Std., Service Access W/O Breaking Connections
  • 304SS Throat Safety Cages, ΔP Taps Std.

Connection Sizes from 1" to 12"

Male NPT or raised face flange in-line connections are std. Alternative orientations and sizes are available. An elevated discharge connection is shown below. A hinged blind face flange closure assembly with lift lug is standard.

Coalescing740Product1Coalescing Filter Media

Sparks™ #907 media is composed of microfine borosilicate glass fibers bonded with phenolic resin. Together with a textile prefilter and a final drain layer, these pleated elements are remarkably effective at coalescing fine entrained oil and aqueous vapor mist from air/gas flows with very low ΔP. Experience has demonstrated high removal (over 90%) in dealing with 1.0 to 0.3µ aerosols. Other optional filter media such as #926 exceeds 95% removals. Individual performance will vary with the specific viscosity and vapor pressure of liquid contaminates.


Models R40-0202-RF-020 and larger include CS leg supports. (add 18" to OH) Carbon steel support legs in any length, gauges, special finishes, and head lift assemblies are optional on any model. Call for information on vessels having other pressure services, 304SS, or other materials of construction. We have several different sizes of coalescing pipe filters in stock

Contact Us

Shawndra Products™, Inc.
Rush Certified and A&E Testing

1514 Rochester Street
Lima, NY 14485
Phone: 585-624-4500
Fax: 585-624-5300
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.