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Quick Open Flanged Strainers

QF Series QF Series Download Brochure Adobe's Acrobat Reader is required to view files with the PDF extension. Acrobat Reader is a free program available here.
    Salient Features
  • Tool-free operation and easy maintenance
  • Flexible design to accommodate very high flow rates
  • Most minimum downtime required for cleaning
  • Aesthetically pleasing exterior
  • Adaptable for fine filtration up to 15 microns
    Design Features
  • Single piece cast construction with integral flanges
  • Gross filtration area of 8 – 16 times inlet cross section area for very low pressure drop
  • Cover compressed screen handle for secure seating
  • Drain/blow off connection & air vent connection furnished with plug as standard
  • Gauge connections furnished with plug as standard
  • Strainers meet ASME B16.5 & ASME B16.34 requirements
  • Plated/coated externals for long durability
    Available Materials of Construction
  • Carbon steel
  • Low temperature carbon steel
  • Stainless steel
  • Consult factory for other materials of construction
    End Connection
  • Flat face Flanged
  • Raised face Flanged
  • Butt Weld
    Size Range*
  • 2” to 10”
  • #150


  • Process Industry
  • Pharmaceutical Industry
  • Hydraulic Fluids Industry
  • Chemical Industry
  • Oil and Gas Industry
  • Pulp and Paper Industry
  • Power Industry
  • Metals and Mining Industry
  • Water and Waste Management
  • * Other sizes and classes can be developed, please indicate requirements.
Standard Parts List
QFA1 – Quick Open Flanged #150 CS Variants QFA2 – Quick Open Flanged #150 SS Variants
Parts List QFA1 QFA2
Body, Bracket & Cover ASTM A216 Gr. WCB ASTM A216 Gr. WCC ASTM A352 Gr. LCB ASTM A352 Gr. LCC ASTM A351 Gr. CF8 ASTM A351 Gr. CF8M ASTM A351 Gr. CF3 ASTM A351 Gr. CF3M
Screen & Mesh^ AISI 304 AISI 316 AISI 304 AISI 316 AISI 304L AISI 316L
Drain, Vent & Gauge Plug ASTM A105 AISI 316 AISI 304 AISI 316 AISI 304L AISI 316L
Fasteners ASTM A193 Gr. B7M/ A194 Gr. 2HM ASTM A320 Gr. L7M/ A194 Gr. 7M ASTM A193 Gr. B8MA/A194 Gr. 8MA
Other Internals AISI 304 AISI 316 AISI 304 AISI 316 AISI 304L AISI 316L
Other Externals Chromium Plated or Blackened Carbon Steel
O Ring Viton Teflon
  1. 1. The list is indicative of our standard offerings. It is subject to change.
  2. 2. Material combinations other than mentioned above can also be offered. Consult factory.
    Optional Accessories and Spares
  1. 1. Differential pressure indicator/inlet and outlet pressure gauges to indicate clogged screen (time for cleaning)
  2. 2. Spare screens, gaskets, and fasteners to reduce process downtime
    ^ Mesh Size is based on customer’s requirement