Duplex Strainers | Cast Iron | Pricing

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Cast Iron Duplex Strainers

 

Our cast iron duplex strainers for ¾" to 24" size pipelines are listed below.  All flanged connections are ANSI class 125#.  You will note that the diverting method differs by strainer size.  The 53BTX ¾" through 4" sizes have a ball valve style diverter, the model 50 6" and 8" sizes use a tapered plug valve style diverter, the model 52's use linked butterfly valves attached to a common gear wheel operator and the model 570 style uses a pair of sliding disc valves for flow diversion.

 

Calculate the approximate clean differential pressure drop by selecting the strainer connection size, inputting your flow rate (GPM), inputting the specific gravity if other than water (sg of water = 1) and select the viscosity range if other than water (SSU of water = 30).  Click "Update" to refresh the data and be sure that the clean differential is ≤2 PSI for the intended basket retention.  NOTE: the differential pressure calculator is based upon the model 50 design for the 8" size and model 52 design for the 10" - 16" sizes.  The model 570 has lower flow coefficient values and therefore a slightly higher clean differential pressure for a given flow rate.  We will gladly assist you with the calculated clean differential pressure figures for the 8" - 16" model 570 duplex strainers.

 

If you require a higher pressure design or a larger strainer size we would provide the custom fabricated style.    Cast iron duplex strainers usually ship within 72 hours after receipt of an order.  If lead time is critical please contact us and we'll confirm the lead time required.

 

We wrote an article entitled BASKET STRAINERS: Differences between Simplex and Duplex Style Strainers which helps you decide if a duplex strainer is the best style for your application.

53BTX cast duplex strainer
Model 53BTX: ¾" to 4" sizes
50 cast duplex strainer
Model 50: 6" and 8" sizes
52 cast duplex strainer
Model 52: 10" through 18" sizes
570 cast duplex strainer
Model 570: 8" through 24" sizes
CONNECTION
(SIZE/TYPE)
DRAWING PART NUMBER
¾" FNPT DRAWING ICON ST053007AT46TS
1" FNPT DRAWING ICON WHITE ST053010AT46TS
1" FLANGE DRAWING ICON WHITE ST053010AF46TS
1¼" FNPT DRAWING ICON ST053012AT46TS
1½" FNPT DRAWING ICON WHITE ST053015AT46TS
1½ FLANGE DRAWING ICON WHITE ST053015AF46TS
2" FNPT DRAWING ICON ST053020AT46TS
2" FLANGE DRAWING ICON ST053020AF46TS
2½" FNPT DRAWING ICON WHITE ST053025AT46TS
2½" FLANGE DRAWING ICON WHITE ST053025AF46TS
3" FLANGE DRAWING ICON ST053030AF46TS
4" FLANGE DRAWING ICON WHITE ST053040AF46TS
5" FLANGE DRAWING ICON ST0500500F41C
6" FLANGE DRAWING ICON WHITE ST0500600F41C
8" FLANGE DRAWING ICON ST0500800F41C
DRAWING ICON 5700800050
10" FLANGE DRAWING ICON WHITE ST052100AF40C
DRAWING ICON WHITE 5701000050
12" FLANGE DRAWING ICON ST052120AF40C
DRAWING ICON 5701200050
14" FLANGE DRAWING ICON WHITE ST052140AF40C
DRAWING ICON WHITE 5701400050
16" FLANGE DRAWING ICON ST052160AF40C
DRAWING ICON 5701600051
18" FLANGE DRAWING ICON WHITE ST052180AF40C
20" FLANGE DRAWING ICON 5702000050
24" FLANGE DRAWING ICON WHITE 5702400051