Plumber Red Seal · Question
What is the primary purpose of a sediment trap (drip leg) installed in a gas piping line just before an appliance?
A sediment trap is a nipple and capped tee installed to create a dead-end pocket that catches any particulate matter in the gas line, protecting the sensitive c
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Question: What is the primary purpose of a sediment trap (drip leg) installed in a gas piping line just before an appliance?
Answer options:
- To cool the gas before it enters the appliance.
- To act as a secondary shut-off valve.
- To collect condensation and moisture from the gas. ✅ To trap sediment, pipe scale, and debris from the gas flow.
Correct answer: To trap sediment, pipe scale, and debris from the gas flow.
Explanation: A sediment trap is a nipple and capped tee installed to create a dead-end pocket that catches any particulate matter in the gas line, protecting the sensitive controls and burners of the appliance.
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