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Model 85

Eaton Y Strainers

¼" to 10" CS and SS - Threaded, Socket Weld, Flanged

Photo of two Model 85 Y Strainers - one flanged and one threaded.

  Models

Connections, Covers, and Pressure Ratings

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Size Material End Connection Cover Rating (WOG) Non-shock*
¼" to 2" Carbon Steel Threaded or socket weld 600# Threaded 1480 psi (102 bar)
¼" to 2" Stainless Steel Threaded or socket weld 600# Threaded 1440 psi (99 bar)
½" to 10" Carbon Steel Flanged 150# Bolted 285 psi (20 bar)
½" to 10" Carbon Steel Flanged 300# Bolted 740 psi (51 bar)
½" to 10" Stainless Steel Flanged 150# Bolted 275 psi (19 bar)
½" to 10" Stainless Steel Flanged 300# Bolted 720 psi (50 bar)

* @ 100 °F (38 °C)




Graph showing the flow rates for Model 85 Y strainers.



Graph showing the steam pressure drops for Model 85 Y strainers.

Calculating saturated steam pressure drop

Example: Pressure = 300 psig (20 bar)
Flow rate = 20,000 lb/h (55,000 kg/h)
Strainer size = 4 inches

  1. Locate steam flow on Scale A.
  2. Follow vertical line to required pressure.
  3. Follow horizontal line to strainer size.
  4. Follow veritcal line downward and read pressure drop on Scale C.
  5. Pressure drop equals 1.25 psi (114 bar).

Calculating superheated steam pressure drop

Example: Pressure = 300 psig (20 bar)
Flow rate = 18,000 lb/h (40,000 kg/h)
Strainer size = 4 inches

  1. Locate steam flow on Scale B.
  2. Follow horizontal line to superheat.
  3. Follow vertical line to pressure.
  4. Follow horizontal line to strainer size.
  5. Follow veritcal line and read pressure drop on Scale C.
  6. Pressure drop equals 1.25 psi (114 bar).

Note: Use the superheat temperature value above the saturated steam temperature to obtain the point on this graph.

  Features

Y strainers are typically used in applications that are focused on protecting downstream process system components. This is typically found where the amount of solids to be removed is small and where frequent clean out is not required. They are most often installed in gaseous services such as steam, air, nitrogen, natural gas, etc.

Eaton Model 85 Y Strainers are heavy duty, engineered to stand up to the most aggressive of industrial and commercial applications, year after year. There is simply no higher quality Y Strainer available at any cost.

Features/Benefits

  • Heavy duty construction
  • Compact design
  • Bolted or threaded covers
  • Stainless steel screens
  • Suitable for liquid, gas or steam
  • Synthetic fiber gaskets

The compact, cylindrical shape of the Y Strainer is very strong and can readily accommodate the high pressures that are common in this type of service. Pressures up to 6000 psi are not unusual. When steam is being handled, high temperature can be an additional complicating factor. A steam pressure of 1500 psi will often be found at temperatures of 1000 °F. The strength of the standard Eaton Y Strainer design can easily accommodate these extreme parameters, although the material of construction will probably be an alloy steel.

A Y Strainer has the advantage of being able to be installed in either a horizontal or vertical position. However, in both cases, the screening element or "leg" must be on the "downside" of the strainer body so the entrapped solids can be properly collected and held for disposal. When the amount of material to be removed is small, the screen is manually cleaned after shutting down the line and removing the strainer cap. For heavier loads, Y strainers can be fit with a "blow off" connection that allows for cleaning of the screen without removing it from the strainer body.

Options

  • MONEL® screens
  • Perforated stainless steel screens - 1/32" to ½"
  • 20, 40, 60, 80, 100, 150, 200, 325, and 400 mesh stainless steel screens

  Dimensions

CAD drawing showing the dimensions of a typical flanged Model 85 Y strainer.
CAD drawing showing the dimensions of a typical threaded or socket weld Model 85 Y strainer.

Socket Weld, Threaded Dimensions* - 600#

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Size in (mm) Weight
lbs (kg)
A B C (Nom.) D
¼ 3.00 (76) 3.00 (76) 3/8 4.00 (102) 2 (0.9)
3/8 3.00 (76) 3.00 (76) 3/8 4.00 (102) 2 (0.9)
½ 3.00 (76) 3.00 (76) 3/8 4.00 (102) 2 (0.9)
¾ 3.75 (95) 3.50 (89) 3/8 4.75 (121) 4 (1.8)
1 4.63 (118) 4.00 (102) ½ 5.75 (146) 6 (2.7)
1-¼ 5.00 (127) 4.63 (118) ¾ 6.50 (165) 8 (3.6)
1-½ 5.63 (143) 5.25 (133) ¾ 7.50 (191) 10 (4.5)
2 7.00 (178) 5.75 (146) 1 8.75 (222) 15 (6.8)

Consult your mdi sales representative for 12" and larger size dimensions.
* Dimensions for both carbon steel and stainless steel models

Flanged Dimensions* - 150#

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Size in (mm) Weight
lbs (kg)
A B C (Nom.) D
½ 5.00 (127) 2.75 (70) 3/8 3.50 (89) 5 (2.3)
¾ 5.63 (143) 3.00 (76) 3/8 4.00 (102) 7 (3.2)
1 6.38 (162) 3.64 (92) ½ 5.00 (127) 9 (4.1)
1-¼ 7.25 (184) 4.25 (108) ¾ 5.75 (146) 14 (6.3)
1-½ 8.88 (226) 5.75 (146) ¾ 6.50 (165) 18 (8.2)
2 7.88 (200) 6.00 (152) 1 8.25 (210) 16 (7.3)
2-½ 9.75 (248) 6.50 (165) 1 9.25 (235) 25 (11.4)
3 10.00 (254) 7.25 (184) 1-¼ 10.50 (267) 35 (16)
4 12.13 (308) 9.75 (248) 1-½ 14.75 (375) 70 (32)
6 18.50 (470) 14.25 (362) 2 21.00 (533) 130 (59)
8 21.63 (549) 18.00 (457) 2 26.75 (679) 240 (109)
10 26.00 (660) 22.50 (565) 2 33.75 (857) 300 (136)

Consult your mdi sales representative for 12" and larger size dimensions.
* Dimensions for both carbon steel and stainless steel models

Flanged Dimensions* - 300#

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Size in (mm) Weight
lbs (kg)
A B C (Nom.) D
½ 5.25 (133) 2.75 (70) 3/8 3.50 (89) 6 (2.7)
¾ 6.00 (152) 3.00 (76) 3/8 4.00 (102) 9 (4.1)
1 6.88 (175) 3.63 (92) ½ 5.00 (127) 13 (6.0)
1-¼ 7.75 (197) 4.25 (108) ¾ 5.75 (146) 18 (8.2)
1-½ 9.38 (238) 5.75 (146) ¾ 6.50 (165) 24 (11)
2 8.63 (219) 6.25 (159) 1 8.25 (210) 30 (13.6)
2-½ 10.63 (270) 7.00 (178) 1 9.25 (235) 40 (18.2)
3 12.00 (305) 7.75 (197) 1-¼ 10.50 (267) 55 (25)
4 14.50 (368) 10.50 (267) 1-½ 14.75 (375) 105 (48)
6 20.00 (508) 14.75 (375) 2 21.00 (533) 200 (91)
8 23.38 (594) 18.75 (476) 2 27.00 (686) 360 (164)
10 27.28 (695) 22.75 (578) 2 34.50 (876) 430 (195)

Consult your mdi sales representative for 12" and larger size dimensions.
* Dimensions for both carbon steel and stainless steel models

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