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2600 Emrick Blvd • Bethlehem, PA 18020 • USA •800-922-0085 • www.warrencontrols.com
APPLICATION
Deaerators, tanks with steam blankets, produce additional liquid
as the steam condenses. The 313 Overflow Trap traps and relieves
this condensate through its internal pilot without the steam
blanket escaping. Buoyancy of its float ball provides force to
actuate internal pilot operated single seat valve assembly to
relieve condensate and overflow to drain. The overflow trap
should be installed in an upright position.
FEATURES
Steel chamber, brass/bronze internal valve,
316 stainless steel float ball.
Sizes 1” through 2” with NPT connections,
3” through 6” with 150FLG
Large end cover provides easy access to internal valve assembly.
RATINGS
System operating pressures to 50 PSIG
Pressure drops to 15 PSI
Temperatures to 250F
Nominal leakage rate 0.1% of rated capacity
3” 313
Brass/bronze internal valve assembly with 316 stainless
steel float ball and float arm shown separately
Serial number label located here
Sales order (serial) number label stamped here
313 OVERFLOW TRAP SPECIFICATIONS
WEIGHTS
For dimensions see drawing 03130611101.
313 Part Number
Description Size End Connection Part Number
STEEL BODY WITH
BRONZE TRIM AND
316 ST. STL. FLOAT
BALL
1 NPT 031306XXX001
1-1/2 NPT 031308XXX001
2 NPT 031309XXX001
3 150FLG 031311XXX001
4 150FLG 031313XXX001
6 150FLG 031315XXX001
PRESSURE
DROP POUNDS / HOUR FLASHING CONDENSATE
(PSI)
Valve Size (IN)
1 1-1/2 2 3 4 6
1 4,500 10,800 20,400 35,500 62,000 132,000
2 6,400 15,400 28,700 50,000 88,000 187,000
4 9,000 21,600 40,400 70,500 123,500 262,000
5 10,000 24,000 45,000 78,500 138,000 293,000
7 11,870 28,500 53,300 93,000 163,000 346,000
10 14,200 34,100 63,700 111,200 196,000 415,000
12 15,600 37,400 69,900 122,000 214,500 455,000
15 17,400 41,800 78,200 136,500 239,000 500,800
CONDENSATE CAPACITIES
Valve Size (IN)
1 1-1/2 2 3 4 6
Weight (lb) 53 95 95 111 173 285
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