Mueller Strainer - mdi
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Models: 863M, 864M, 865, 866

Cast Carbon and Alloy Steel Screwed & Socket Weld End Y Strainers
Sizes: 1 ⁄2" – 2" (15 – 50mm)

Model 863 Y Strainers by Mueller

Pressure / Temperature - Non-Shock
Model Material Rating
863M, 864M Carbon Steel 3705psi @-20°F to 100°F
255.45 bar @ 37.78°C
1595psi @ 850°F
109.97 bar @ 454.44°C
863M, 864M Chrome-Moly 3750psi @-20°F to 100°F
258.55 bar @ 37.78°C
1500psi @ 975°F
103.42 bar @ 523.89°C
865, 866 Carbon Steel 6170psi @-20°F to 100°F
425.41 bar @ 37.78°C
2655psi @ 850°F
183.06 bar @ 454.44°C
865, 866 Chrome-Moly 6250psi @-20°F to 100°F
430.92 bar @ 37.78°C
2500psi @ 975°F
172.37 bar @ 523.89°C
863M Screwed: Class 1500
864M Socket: Class 1500

Bolted Cap
865 Screwed: Class 2500
866 Socket: Class 2500

Typical Service

Features

Construction

Self-Cleaning

Blowoff Outlets

Capacity

Screens

Model Sizes Standard (Water) Steam Recommendation
Material Opening Material Opening
All 1/2" - 2" 304SS 0.062 perf 304SS 0.045 perf

Material

  863M, 864M, 865, 866
Body Carbon Steel, ASTM A216 Grade WCB
Cover / Cap Carbon Steel, ASTM A216 Grade WCB
Gasket Spiral Wound SS, Graphite Filled
Body/Cap Also Available in:

Carbon-Moly ASTM A217 Gr. W1
Chrome-Moly ASTM A217 Gr. WC6
Chrome-Moly ASTM A217 Gr. WC9

Dimensions and Weights

Size Dimensions Weight
    A B C
(NPT)
D E F
Screen Removal
 
in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kgs.
863M
1⁄2 15 3-29⁄32 99.2 3 76 1⁄4 6 3-3⁄4 95 2.25 1.02
3⁄4 20 4-1⁄4 108 3-5⁄8 92 3⁄8 10 4-3⁄8 111 3.75 1.7
1 25 5 127 4-1⁄8 105 1⁄2 14 5-1⁄4 133 6.5 2.9
1-1⁄4 32 8-3⁄8 213 7 178 7-3⁄4 197 22 10
1-1⁄2 40 8-3⁄8 213 7 178 7-3⁄4 197 22 10
2 50 9-5⁄16 237 7-3⁄8 187 9 229 30 13
864M
1⁄2 15 3-29⁄32 99.2 3 76 1⁄4 6 3⁄8 10 7⁄8 21.7 3-3⁄4 95 2.25 1.02
3⁄4 20 4-1⁄4 108 3-5⁄8 92 3⁄8 10 1⁄2 13 1-1⁄16 27 4-3⁄8 111 3.75 1.7
1 25 5 127 4-1⁄8 105 1⁄2 14 1⁄2 13 1-5⁄16 33.8 5-1⁄4 133 6.5 2.9
1-1⁄4 32 8-3⁄8 213 7 178 CF CF 1⁄2 13 1-11⁄16 42.5 7-3⁄4 197 22 10
1-1⁄2 40 8-3⁄8 213 7 178 CF CF 1⁄2 13 1-15⁄16 48.6 7-3⁄4 197 22 10
2 50 9-5⁄16 237 7-3⁄8 187 CF CF 5⁄8 16 2-3⁄8 61.1 9 229 30 13
865
1⁄2 15 12-5⁄8 321 7-11⁄16 195 10-1⁄2 267 9 4
3⁄4 20 12-5⁄8 321 7-11⁄16 195 10-1⁄2 267 12 5.4
1 25 12-5⁄8 321 7-11⁄16 195 10-1/2 267 40 18
1-1⁄4 32 16-7⁄8 429 10-1⁄2 267 14-1⁄2 368 75 34
1-1⁄2 40 16-7⁄8 429 10-1⁄2 267 14-1⁄2 368 75 34
2 50 17 432 12-1⁄2 318 16-3⁄4 425 200 90
866
1⁄2 15 12-5⁄8 321 7-11⁄16 195 3⁄8 10 7⁄8 21.7 10-1⁄2 267 9 4
3⁄4 20 12-5⁄8 321 7-11⁄16 195 1⁄2 13 1-1⁄16 27 10-1⁄2 267 12 5.4
1 25 12-5⁄8 321 7-11⁄16 195 1⁄2 13 1-5⁄16 33.8 10-1/2 267 40 18
1-1⁄4 32 16-7⁄8 429 10-1⁄2 267 1⁄2 13 1-11⁄16 42.5 14-1⁄2 368 75 34
1-1⁄2 40 16-7⁄8 429 10-1⁄2 267 1⁄2 13 1-15⁄16 48.6 14-1⁄2 368 75 34
2 50 17 432 12-1⁄2 318 5⁄8 16 2-3⁄8 61.1 16-3⁄4 425 200 90

CF = Consult Factory

Dimensions for Model 863M Y Strainers by MuellerDimensions for Model 865 Y Strainers by Mueller