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Float Drain Traps

Eaton Gas/Liquid Separators

Drains separated condensate from gas lines without pressure loss

Computer-generated image showing three models of float drain trap for Eaton gas-liquid separators.

  Models

Capacities: Condensate (lb/hr) at 70 °F - Types 90, 95, 230, and 350

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Model
No.
Orifice
Diameter
Differential Pressure (psi). Specify on Order
5 10 25 50 75 100 125 150 175 200 250 300 500
90-AC and
90-AC-SI-SO
5/32" 292 434 790 1273 1600
1/8" 178 266 502 785 970 1130 1250 1370 1465 1550 1750
3/32" 97 147 265 427 545 625 697 760 815 870 965
5/64" 68 101 198 299 382 435 487 530 570 590 650
95-AC 5/32" 292 434 790 1273 1623 1850 2075 2250 2400 2575 2840
1/8" 178 266 502 785 970 1130 1280 1370 1465 1550 1750 1950 2500
3/32" 97 147 266 427 545 625 697 760 815 870 965 1060 1350
230-AC 7/32" 396 595 1075 1733 2205 2525 2800
Model
No.
Orifice Diameter Differential Pressure (psi). Specify on Order
Under
100 psi
Over
100 psi
5 10 25 50 75 100 125 150 175 200
350-AC 1/8" 3/32" 546 808 1464 2337 2985 3435 2085 2280 2445 2160
9/64" 1/8" 702 1050 1804 2992 3787 4350 3825 4125 4410 4740
5/32" 9/64" 877 1302 2370 3819 4867 5550 4860 5280 5400 6000
3/16" 5/32" 1189 1785 3226 5201 6615 7575 6225 6750 7200 7400
¼" 7/32" 2145 3255 5771 9291 11827 13575 11625 12600 13650 14400

  Features

Features/Benefits

  • No priming required
  • Stainless steel internal parts
  • Internal parts removed with cover
  • No loss of line pressure
  • Choice of inlet/outlet configurations

Options

  • Heater for low temperature applications

Applications

  • Steam drums
  • Steam turbines
  • Intercooler equipment
  • Aftercooler equipment
  • Gas well heads
  • Deep well heads
  • Oil extraction
  • Chemical processing
  • Scrubbing systems
  • Evaporator
  • Glycol dehydration
  • Sulfer condenser
  • Mist elimination
  • Heat exchangers
  • Reactors
  • Landfill/waste gas

Eaton Float Drain Traps are available in a variety of models and materials of construction, featuring the Model 90-AC, Model 95-AC, Model 230-AC, and Model 350-AC.

Eaton drain traps have been an industry standard since 1894. Without loss of line pressure, they efficiently handle the draining of condensate removed from air or gas lines by separators of the condensate, which accumulates in storage tanks or at drip points. These traps are capable of removing up to 2800 pounds of condensate per hour and work with pressure differentials from 5 psi up to 250 psi.

Models 90-AC and 95-AC

Available in cast iron or cast stainless steel for 0 to 500 psi service. Loss of air or gas is prevented by a positive water seal. They have a straight-through design. Internal parts, including valve and seat, are corrosion-resistant, non-magnetic stainless steel. All working parts are attached to the base for easy removal and inspection. A side inlet/outlet configuration is available for iron, carbon steel, and stainless steel traps.

Model 230-AC

Available in cast iron for 0 to 125 psi service. Ideal for use where gummy emulsions or cylinder lubricants make other traps inoperative. They feature a vertical inlet, downflow discharge design. Ample float power and large outward-opening discharge valve prevent loss of pressure. Internal parts are stainless steel, including non-magnetic valve and seat. Working parts are attached to the cover for easy removal without disconnecting the trap from the line. No priming is required. For low temperature applications, a heater is available as an option.

Model 350-AC

"Three traps in one" is the basic principle of these ball float traps. Three valves open and close progressively as condensate volume varies. As the float chamber water level rises, the float lies deep in the water until its buoyancy overcomes the opposing line pressure and snaps the valve wide open. When closing, as each valve approaches its seat, the line pressure snaps it tightly closed. These traps have cast iron bodies and stainless or copper internal parts. A bypass thermostat is standard.

  Dimensions

CAD drawing showing the dimensions of a model 90-AC float drain trap.
CAD drawing showing the dimensions of a model 230-ACN float drain trap.
CAD drawing showing the dimensions of a model 350-ACN float drain trap.

Dimensions - Types 90, 95, 230, and 350

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Model
No.
Pipe
Size (NPT)
in (mm) Weight - lbs (kg)
A B C Width Cast
Iron
Cast
Steel
Stainless
Steel
90-AC ¾ 6.12 (155) 4.87 (124) 5.12 (130) 19 (8.6)
90-AC-SI-SO ½ 6.12 (155) 5.75 (156) 5.12 (130) 19 (8.6)
95-AC 1 7 (178) 6.12 (155) 6.12 (155) 19 (8.6) 19 (8.6) 19 (8.6)
230-ACN 1 9 (229) 3.63 (92) 7.5 (190) 5.63 (143) 25 (11.3)
350-ACN 1, 1-¼, 1-½, 2 14.38 (365) 8.5 (216) 15.38 (391) 9.25 (235) 81 (36)

* 1, 1-¼, and 1-½ are bushed down from 2" size.

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