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What is the primary purpose of a sediment trap (drip leg) installed ahead of a gas appliance control?
a.To increase gas pressure at the burner
b.To act as a required shutoff valve
c.To catch moisture and debris before they reach the appliance gas valve
d.To vent excess gas to the outdoors
Giải thích
A sediment trap is a short capped nipple that catches condensate, scale, and dirt carried in the gas stream so they drop out instead of fouling the appliance gas control. It is installed downstream of the appliance shutoff valve and as close as practical to the appliance inlet. It does not regulate pressure or replace the shutoff valve.
Trích dẫn luật: California Plumbing Code, Fuel Gas provisionsLuyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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