Who is responsible for the broken water pipe valve?

Legal analysis: it was replaced by a property management company. This belongs to public property. Remind the property management company to replace the valve in time. Generally speaking, whoever owns the property right of the water meter should bear the cost. If the water meter is not replaced for a long time, it will harm the interests of other owners, because the property fee includes the cost of public water, and the property has the right to stop water supply until a new water meter is replaced.

Legal basis: Article 51 of the Regulations on Property Management, water supply, power supply, gas supply, heating, communication, cable television and other units are responsible for the maintenance and conservation of relevant pipelines, facilities and equipment within the property management area according to law. If the units specified in the preceding paragraph temporarily occupy or dig roads and sites due to maintenance, they shall promptly restore the original state.

Article 62 of the "People's Republic of China (PRC) Construction Law" implements a quality warranty system for construction projects. The warranty scope of construction projects shall include civil engineering such as foundation engineering, main structure engineering, roof waterproof engineering, and installation engineering of electrical pipelines, water supply and drainage pipelines, heating and refrigeration system engineering, etc. The warranty period shall be determined in accordance with the principle of ensuring the normal use of buildings within a reasonable service life and safeguarding the legitimate rights and interests of users. The specific warranty scope and minimum warranty period shall be stipulated by the State Council.