Mueller Strainer - mdi

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Model: 791FA

Ball-Plex Cast Iron Flanged End Duplex Strainers
Sizes: 3 ⁄4" – 6" (20 – 150mm)

Model 791FA Cast and Ductile Iron Strainers by Mueller

Pressure / Temperature - Non-Shock
Model Material Rating
791FA Cast Iron 200psi @-20°F to 150°F
13.79 bar @ 65.56°C
175psi @ 250°F
12.07 bar @ 121.11°C

Strainers provide economical protection for costly pumps, meters, valves, and other similar mechanical equipment by straining foreign matter from the connected piping system. Installation of a strainer before mechanical equipment can ensure trouble free service and avoid costly shutdowns for repair or replacement of equipment damaged by foreign matter. The size of the perforation or mesh in the basket screen will determine the smallest particles captured. See Strainer Information section of the Mueller Steam Specialty Engineering binder for detailed information including sizes and materials available.

Typical Service

Features

Baskets

Model Sizes Standard (Water)
Material Opening
791FA 3 ⁄4" - 4" 304SS 0.062 perf
5" - 6" 304SS 0.125 perf

Material

Body 791FA
Cast Iron ASTM A126-B
Cover Cast Iron ASTM A126-B
Seat PTFE
O-ring Seals Buna-N

Dimensions and Weights

Size Dimensions Weight
    A B C D E
Screen Removal
F G    
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kgs.
3⁄4 19 6 7⁄8 175 4-15⁄16 125 4-5⁄8 118 10 254 7-3⁄4 197 10-3⁄16 259 3⁄4 20 34 15.4
1 25 6 7⁄8 175 4 15⁄16 125 4-5⁄8 118 10 254 7-3⁄4 197 10-3⁄16 259 3⁄4 20 34 15.4
1-1⁄4 32 9-3⁄8 238 6-3⁄4 171 4-3⁄8 111 10 254 10-3⁄8 264 12-3⁄4 324 1-1⁄4 32 65 29.4
1-1⁄2 40 9-3⁄8 238 6-3⁄4 171 4-3⁄8 111 10 254 10-3⁄8 264 12-3⁄4 324 1-1⁄4 32 65 29.4
2 50 10-5⁄8 270 8-3⁄16 208 7-1⁄8 181 20 508 12-5⁄8 321 16-3⁄8 416 1-1⁄2 40 113 51.2
2-1⁄2 65 13-1⁄2 343 12 305 8-1⁄16 205 20 508 17-21⁄32 448 20-3⁄8 518 1-1⁄2 40 218 98.8
3 80 13-1⁄2 343 12 305 8-1⁄16 205 20 508 17-21⁄32 448 20-3⁄8 518 1-1⁄2 40 218 98.8
4†† 100 16 406 16-13⁄16 427 15-1⁄2 394 14+ 356 23-1⁄2 597 24-1⁄2 622 1-1⁄2 40 432 195.9
5†† 125 22 559 18-5⁄8 473 17-1⁄4 438 14+ 356 25-11⁄16 653 26-1⁄4 667 1-1⁄2 40 786 356.4
6†† 150 22 559 18-5⁄8 473 17-1⁄4 438 14+ 356 25-11⁄16 653 26-1⁄4 667 1-1⁄2 40 786 356.4

Model 791FA Cast and Ductile Strainers by Mueller