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Model 91

Eaton Fabricated Strainers

T-Type Simplex Strainer, 2" to 48"

Photo of a Model 91 fabricated simplex strainer.

  Models

Flow Rates

Graph showing the flow rates for Model 91 strainers.

  Features

The Eaton Model 91 Tee Strainer offers several advantages over other strainer designs. The strainer is very compact, important in applications where space is restricted. Unlike most other strainers, the Model 91 can be used in either vertical or horizontal installations. A time-saving feature of the Model 91 Tee Strainer is the cleanable strainer screen.

Features/Benefits

  • ANSI Class 150, 300, or 600 flanges
  • Vertical or horizontal orientation
  • Low pressure drop
  • Convoluted screen for more surface area with perforations from 1/16" to ½"
  • 20 to 60 mesh linings for fine straining applications

The Model 91 Tee Strainer offers several advantages over other strainer designs. The strainer is very compact, important in applications where space is restricted. Unlike most other strainers the Model 91 can be used in both vertical or horizontal installations and the strainer screen can be cleaned without draining the strainer housing.

These strainers also feature a convoluted strainer screen and an unrestricted flow path that results in a very low pressure drop compared to other strainer types. This makes the strainers ideal for applications such as condensate and boiler feed pump suction where the process water has low solids loading and the pressure drop is critical.

Options

  • Quick open hinged or davit cover assembly; bolted cover
  • Alloy construction for body and baskets
  • ASME Code construction
  • Steam jacket for highly viscous fluids
  • Straight through or right angle configuration
  • Flanged class 600 or butt weld piping connections

  Dimensions

CAD drawing showing the dimensions of a Model 91 strainer with hinged cover.
CAD drawing showing the dimensions of a Model 91 strainer with bolted cover.

Bolted Cover Dimensions

Drag your finger across the table to scroll

Nom. Size in (mm) Weight - lbs (kg)
Butt Weld Connections Flanged Connections   Class 150 Class 300
Class 150 Class 300 Class 150 Class 300
A-1 C A-1 C A-2 C A-2 C E Cover Unit Cover Unit
2 5 (127) 5-¼ (133) 5 (127) 6-1/8 (156) 10 (254) 5-¾ (146) 10-½ (267) 6-1/8 (156) 13 (330) 4 (1.8) 25 (11.3) 8 (3.6) 38 (17.2)
3 6-¾ (171) 7-1/8 (181) 6-¾ (171) 7-5/8 (194) 12-¼ (311) 7-1/8 (181) 13 (330) 7-5/8 (194) 14 (356) 9 (4.1) 50 (22.7) 16 (7.3) 69 (31.3)
4 8-¼ (210) 8-1/8 (206) 8-¼ (210) 8-¾ (222) 14-¼ (362) 8-1/8 (206) 15 (381) 8-¾ (222) 16 (406) 17 (7.7) 75 (34.0) 27 (12.2) 115 (52.2)
5 9-¾ (248) 9-3/8 (238) 9-¾ (248) 10-1/8 (257) 16-¾ (425) 9-3/8 (238) 17-½ (445) 10-1/8 (257) 19 (483) 20 (9.1) 80 (36.3) 35 (15.9) 151 (68.5)
6 11-¼ (286) 10-1/8 (257) 11-¼ (286) 11 (279) 18-¼ (464) 10-1/8 (257) 19 (483) 11 (279) 22 (559) 26 (11.8) 110 (49.9) 50 (22.7) 206 (93.4)
8 14 (356) 12-1/8 (308) 14 (356) 13 (330) 22 (559) 12-1/8 (308) 22-¾ (578) 13 (330) 25 (635) 45 (20.4) 185 (83.9) 81 (36.7) 336 (152.4)
10 17 (432) 13-¾ (349) 17 (432) 15 (381) 25 (635) 13-¾ (349) 26-¼ (667) 15 (381) 29 (737) 70 (31.8) 324 (147.0) 127 (57.6) 481 (222.7)
12 20 (508) 15-¾ (400) 20 (508) 17-1/8 (435) 29 (737) 15-¾ (400) 30-¼ (768) 17-1/8 (435) 31 (787) 110 (49.9) 410 (186.0) 184 (83.5) 730 (331.1)
14 22 (559) 17-3/8 (441) 22 (559) 18-¾ (476) 32 (727) 17-3/8 (441) 33-¼ (845) 18-¾ (476) 38 (965) 131 (59.4) 615 (279.0) 236 (107.0) 966 (438.2)
16 24 (610) 18-½ (470) 24 (610) 20 (508) 34 (864) 18-½ (470) 35-½ (902) 20 (508) 41 (1041) 170 (77.1) 776 (352.0) 307 (139.3) 1264 (573.4)
18 27 (686) 20-5/8 (524) 27 (686) 22-1/8 (562) 38 (965) 20-5/8 (524) 39-½ (1003) 22-1/8 (562) 46 (1168) 209 (94.8) 920 (417.3) 390 (176.9) 1587 (719.9)
20 30 (762) 22-3/8 (568) 30 (762) 23-7/8 (606) 41-3/8 (1051) 22-3/8 (568) 42-¾ (1086) 23-7/8 (606) 51 (1295) 272 (123.4) 1180 (535.2) 492 (223.2) 1980 (898.1)
24 34 (864) 24-7/8 (632) 34 (864) 26-3/8 (670) 46 (1168) 24-7/8 (632) 47-¼ (1200) 26-3/8 (670) 56 (1422) 411 (186.4) 2190 (993.4) 594 (269.4) 2722 (1234.7)

Please contact your mdi sales representative for the dimensions of other pipe size models.

Quick Open Hinge Cover Dimensions

Drag your finger across the table to scroll

Nom. Size in (mm) Weight - lbs (kg)
Butt Weld Connections Flanged Connections   Class 150 Class 300
Class 150 Class 300 Class 150 Class 300
A-1 C A-1 C A-2 C A-2 C E Cover Unit Cover Unit
6 11-¼ (286) 9-¼ (235) 11-¼ (286) 9-¼ (235) 18-¼ (464) 9-¼ (235) 19 (483) 9-¼ (235) 22 (559) 5 (2.3) 108 (49.0) 5 (2.3) 142 (64.4)
8 14 (356) 11-1/8 (283) 14 (356) 11-1/8 (283) 22 (559) 11-1/8 (283) 22-¾ (578) 11-1/8 (283) 25 (635) 9 (4.1) 156 (70.8) 9 (4.1) 208 (94.3)
10 17 (432) 13-½ (343) 17 (432) 13-½ (343) 25 (635) 13-½ (343) 26-¼ (667) 13-½ (343) 29 (737) 12 (5.4) 231 (104.8) 12 (5.4) 330 (149.7)
12 20 (508) 15-5/8 (397) 20 (508) 15-5/8 (397) 29 (737) 15-5/8 (397) 30-¼ (768) 15-5/8 (397) 31 (787) 15 (6.8) 342 (55.1) 15 (6.8) 458 (207.7)
14 22 (559) 17-1/8 (435) 22 (559) 17-1/8 (435) 32 (727) 17-1/8 (435) 33-¼ (845) 17-1/8 (435) 38 (965) 20 (9.1) 435 (197.3) 20 (9.1) 610 (276.7)
16 24 (610) 18-5/8 (473) 24 (610) 18-5/8 (473) 34 (864) 18-5/8 (473) 35-½ (902) 18-5/8 (473) 41 (1041) 26 (11.8) 540 (244.9) 26 (11.8) 781 (354.3)
18 27 (686) 21-1/8 (537) 27 (686) 21-1/8 (537) 38 (965) 21-1/8 (537) 39-½ (1003) 21-1/8 (537) 46 (1168) 32 (14.5) 660 (299.4) 32 (14.5) 990 (449.1)
20 30 (762) 23-5/8 (600) 30 (762) 23-5/8 (600) 41-3/8 (1051) 23-5/8 (600) 42-¾ (1086) 23-5/8 (600) 51 (1295) 40 (18.1) 806 (365.6) 40 (18.1) 1222 (554.3)
24 34 (864) 27-1/8 (689) 34 (864) 27-1/8 (689) 46 (1168) 27-1/8 (689) 47-¼ (1200) 27-1/8 (689) 56 (1422) 58 (26.3) 1085 (492.2) 58 (26.3) 1755 (796.1)

Please contact your mdi sales representative for the dimensions of other pipe size models.

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