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Condensate Drain Traps

Condensate Drain Trap

 

Drain trap locationAutomatic float style condensate traps provide a reliable method of automatically draining liquid from a pipe system without loss of any process gas.  Float drain traps are typically installed at low points in the plumbing system where liquid accumulates from storage tanks, gas/liquid separators and at the bottom of vertical piping.

How Float Drain Traps Work
Liquid flows into the drain trap from above and fills the trap until the hollow stainless steel ball floats sufficiently high enough to open the valve attached to it.  The system pressure acts upon the liquid and it passes through the valve to drain until the level within the trap drops sufficiently, causing the float to drop low enough to seal the drain orifice closed.

At all times there is a barrier of liquid within the trap, thus only the liquid drains from the trap and the steam, compressed air or other inert gas stays within the piping system.  The lower plug is used for occasional blowdown if particulate such as pipe scale are introduced into the trap.  Installing a Y strainer to protect the trap from excessive scale found in older systems is a good idea.

When installed in locations susceptible to freezing, we offer models that have an extra port in which a 50 watt heater can be installed; this keeps the trap reservoir from freezing.

All of the serviceable components are attached to the drain trap cover for easy inspection and maintenance.

 

MODEL #

ORIFICE DIAMETER

Pounds per Hour Drainage by
Orifice Size and Differential Pressure (PSIG)

5

10

25

50

75

100

125

150

175

200

250

300

500

90-AC

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

1250

1370

1465

1550

1750

1950

2500

3/32”

97

147

265

427

545

625

697

760

815

870

965

1060

1350

230-AC

7/32”

396

595

1075

1733

2205

2525

2800

-

-

-

-

-

-