1¼" MODEL DC DUPLEX STRAINERS, CAST IRON, BRONZE, STEEL & 316SS
AT C E F
7.50 6.81 17.00 13.25

You can calculate the approximate clean pressure drop, inlet velocity, & screen velocity for your intended flow rate and Specific Gravity (Sg) by replacing the default (max) values below (green boxes) with the design values.  The Sg of Water is 1.
 (The screen velocity and straining ratio are based upon the standard perforated basket and its' % open area. Use our calculations page to generate data for other perf or mesh sizes. Max. PSI based upon 150F max. temperature.)
Input Design GPM & Sg: Suggested Flow Rate Total Basket
Area (in.) 		Percentage of
Open Area 		 
(GPM) Sg Minimum Maximum  
45 48%  
  1.25            
Model Connection Cv Factor Bronze
w/Buna 		Steel
w/Buna 		Iron
w/Buna 		304SS
w/Viton 		Maximum
Pressure
DC 1¼" FNPT 18 100 lb. 89 lb. 80 lb. 89 lb. 200 PSI
Inlet Velocity (FPS) Screen Velocity (FPS) Straining Ratio Standard Basket
Perforation:
:1 1/8" (0.1250 in. ~3.175 mm)
SSU Calculated Pressure Drop (PSI) Considering Viscosity (SSU)
Perforated 40 mesh 60 mesh 80 mesh 100 mesh 200 mesh 325 mesh
30 (water)
500
1,000
2,000
3,000
5,000
10,000

Automatic recalculation