Many industrial processes involve the removal of air/gas from a pressurized liquid. ASVIN air vents are ideally suited for this purpose. The float-operated design means the vents can instantly and automatically adjust to variations in gas flow and pressure. The air vents can handle gas removal from liquids with specific gravities as low as 0.40 and pressure to 2,700 psi (186 bar). ASVIN air vents are available in a wide variety of sizes, end connections and construction materials.
Separators, tanks with steam blankets, produce additional liquid as the steam condenses.
The 313 Overflow Trap traps and relieves this condensate and overflow without the steam blanket escaping. Buoyancy of its float ball provides force to operate internal valve assembly to relieve condensate and overflow to drain. Features steel chamber, brass/bronze internal valve,
316 stainless steel float ball.
Sizes 1” through 2” with NPT connections, and 3” through 6” with 150FLG
Large end cover provides easy access to internal valve assembly.
Cover can be tapped for optional sight glass assembly.
Optional sight glass assembly is available complete with brass ball check, shut-off valves, and drain valves.
As condensate/overflow enters the overflow trap the level of the liquid in the float chamber increases. For small amounts of liquid the float ball lifts the pilot assembly away from the piston disc and the liquid is relieved through the hole in the center of the piston disc. For large volumes of liquid the piston disc lifts off its seat in the valve body. The liquid then passes under the piston disc to the drain.
Installation The overflow trap should be installed in an upright position.
The inlet and outlet of the overflow trap must be kept unblocked. The internal valve assembly must be kept free of debris, deposits, and dirt. The internal valve assembly should move freely.
Pressure – Temperature Rating
System operating pressures to 50 PSIG
Pressure drops to 15 PSI Approximate Shipping Weights
Temperatures to 250F
Nominal leakage rate 0.1% of rated capacity
TANK BLANKETING VALVES GAUGE HATCHES VACUUM BREAKERS