The apparatus can ensure the high temperature vapor can be vented safely and timely, and thereby avoids deformation or rupture of the pipes and the watercock and bursting of the hot water stove.
本装置能保证高温水蒸气及时安全排出，避免管道和水龙头的变形、破裂以及热水灶炸裂。
2
Designed to prevent the flow of contaminated water back into the potable water supply, these devices require no plumbing changes, and screw directly onto a sill cock.