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Model 72 Simplex Strainers


Hayward model 72 simplex strainers

Model 72 simplex strainers have been providing reliable service for nearly 100 years.  What sets the model 72 apart from the competition is it's thoughtful design.  Oversized baskets provide a strainer area having more than 6 times the cross sectional pipe area.  No tools are required for accessing the basket chamber with the quick-opening cover design.  The swing yoke cover is designed for quick disassembly even when installed in dirty, difficult to access installations.  Each strainer has a threaded drain plug, enabling you to drain the cavity for inspection.  Heavy wall thickness combined with precision machined basket seats formulate a rugged strainer body with a tight sealing basket chamber. These simplex strainers have all the features that you need and are usually available to ship from stock!


  • Quick open cover (no tools needed)
  • Heavy wall construction
  • Large capacity baskets
  • Machined basket seat
  • Threaded drain
  • Perforated stainless steel basket
  • Basket perforations from 1/32" to 1/2"
  • Basket mesh from 20 to 400
  • Monel Baskets
  • Viton, PTFE Encapsulated or EPDM seals
  • Vent valves
  • 1/4" FNPT Taps
  • Magnetic basket inserts
  • Pressure differential gauge & switch

There are two variations of the model 72, the 72SJ (steam jacketed) and 72L (Tefzel lined).


Models 72SJ and 72L

Model 72SJ steam jackted simplex strainerThe steam jacketed version of the model 72 simplex strainer has a "cover" welded around the basket chamber with either ½" or ¾" threaded steam port connections depending upon the strainer size. 


The jacketing process usually extends the lead time from 3 days to about 2 weeks.


The steam jacket is rated for 100 PSI @ 400°F maximum (6.9 bars @ 204.4°C).  The model 72SJ is available in either cast steel or cast 316SS materials only.


Model 72L Tefzel lined simplex strainerThe model 72L simplex strainer consists of a carbon steel body with a special Tefzel lining for handling aggressive fluids.  The lining used for model 72L simplex strainers should not be confused with "coatings", rather it consists of a 1/8" thick plastic lining which enables it to handle aggressive fluids which would otherwise require a costly custom fabricate strainer made of an exotic alloy.


The Tefzel fluoropolymer lining is inert to strong mineral acids, inorganic bases, halogens and metal salt solutions. Aggressive fluids such as carboxylic acid, anhydrides, aromatic and aliphatic hydrocarbons, alcohols, aldehydes, ketones, ethers, esters, chlorocarbons and classic polymer solvents have little effect on the Tefzel lining.


The basket choices for the model 72L include 316SS perforated baskets with Tefzel coating, Monel or Hastelloy C (the latter two materials available for perforation or mesh lined retentions).


We've taken a unique approach to this website.  We list our strainers by material in order from smallest to largest and in addition to discounted pricing we provide links to their outline drawing and a calculator embedded within the webpage to help ensure the strainer you choose is properly sized for the intended application.


Of course you can always contact us for immediate assistance and the best way to receive assistance is to complete our application oriented inquiry form.