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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
