Gas stoves or cook tops or fireplaces for instance are not required to have them. The purpose of a sediment trap is to prevent any sediment that may be in a gas supply line from entering into the controls of a heater or water heater.
Does each gas appliance need a drip leg?
Drip legs are required to be installed in a manner that meets or exceeds fuel piping codes and manufacture requirements for appliances and devices. … It is a very simple and necessary component of fuel piping installation. The drip leg requirements are the same for both natural gas and propane.
Is a drip leg required?
Drip legs and sediment traps are a capped off section of gas line that is designed and installed to catch debris or moisture in the gas line to keep the system clean.
How important is a drip leg on a gas line?
The rarely noticed sediment trap, or drip leg, is an important part of any gas appliance. These small pipes that appear to be extensions of the gas line serve the purpose of collecting sediment, debris, and other impurities that come through the gas line, catching them before they enter the appliance.
How long does a gas drip leg need to be?
The basic requirements for sediment traps:
Must be made of a tee fitting with a capped nipple, a minimum of 3 inches in length, in the bottom opening of the run of the tee. Provide a 90-degree change of direction of gas flow, to help prevent sediment from flowing over the trap.
How much does it cost to install a drip leg?
The average cost to install a drip leg is $75 to $150, which is a plumber’s minimum charge. For multiple installs, costs range from $33 to $89 per drip leg. Drip legs capture moisture so that it doesn’t enter the control unit. Although small pieces of sediment may get through a drip leg.
What appliances need a drip leg?
According to the 2016 California Plumbing Code (CPC), sediment traps are required for all gas appliances except: illuminating appliances, ranges, clothes dryers, decorative appliances for installation in vented fireplaces, gas fireplaces, and outdoor grills.
Where do you put drip legs?
A drip leg can be installed anywhere at the low point in the piping system, if there is moisture in the gas to allow for the removal of the condensation. The outlet of the meter is one such location. Sediment traps are usually installed very close to the water heater or furnace valve.
How do drip legs work?
Drip Legs:
The properly sized drip leg acts as a separator by providing an increase in flow area, which slows the steam flow down allowing the condensate to drop out. This is important during operation as well as start-up. … On start-up cold piping causes steam to collapse and pressure to drop.
How can we check for leaks in gas lines?
What is drip leg in steam lines?
Placed along super heated steam lines, condensate drip legs (or drip traps) collect particles of moisture and drain off the accumulated condensate. Employed as a preventative measure against turbine water induction, drip legs can be placed along main steam lines, hot and cold reheats and steam extraction lines.
Why do gas lines require sediment traps?
Sediment traps installed at gas appliances are used to help catch any sediment or debris that may be present in the gas line and prevent it from entering the appliance and possibly damaging it.
How much does it cost to install a sediment trap for a water heater?
Sediment traps cost about $10, but you can do it yourself for less without the kit by shopping for 1/2 inch gas line at Home Depot. If you have a professional install one, it can cost up to $100.
What is a drip trap?
Draining the drip traps in an anaerobic digester waste treatment plant removes condensate in the gas piping system. … Regularly performing the chore prevents corrosion and “water hammer” damage in the pipes.