Condensate Drain Trap Vent

The trap arm is the portion of a fixture drain between a trap weir and its protecting vent.

Condensate drain trap vent.

It s the height at which water will no longer flow from the trap via gravity the rim of the cup so to speak see how siphons are created below. The trap weir is the point at the bottom of the trap arm pipe where it connects to the trap. The weight of the water in the trap is enough to prevent this while still allowing condensation to flow freely. March 30 2020 bryan orr 2 comments.

Trap and vent a drain debacle. Energy saving iron steam traps also known as thermostatic steam traps these vent cool air and condensate to increase energy efficiency in your steam lines. Condensate drain lines are commonly tied to vents and or drains. Here is our finished product.

The secondary heat exchanger outlet is sealed inside a plastic part called the collector box which is designed to collect the condensate and drain it out. This is a recent call i ran that clearly had an interesting past. Also known as inverted bucket steam traps these provide near continuous discharge to accommodate high condensate levels. The vent opening should always rise above the trip level of the condensate overflow switch when it is in the primary drain line or pan or above the secondary aux overflow port on the primary drain pan.

Another key component of a p trap is an air vent the air vent prevents the drain that comes after the p trap from siphoning the water in the trap out. The cleanout after the trap is supposed to be a vent not a cleanout which means it needs to be uncapped and vented higher than the indoor drain pan so that if the drain backs up the water goes back into the system and trips the condensate switch.