Liquid chlorine valve reuse
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Can liquid chlorine valves, including stop valves and ball valves, that have been used for two years, be reused or used for other purposes after being disposed of?
Dear sea friends: Is it okay if you have such convenient standards? ? ? ?
There seems to be no standard for this. The main factor to consider is safety. You can try these valves in some unimportant work sections!
Valve recycling management Valves must be recycled in principle. However, in view of the large number of toxic and harmful media in the chlor-alkali chemical industry, in order to ensure the safe and stable operation of the device system, the recycling application of valves must be strictly managed. Our company’s valve recycling management requirements: 1. In principle, no recovery valves are used in any main system (chlorine, hydrogen, vinyl chloride, hydrogen chloride, acetylene, ammonia, etc.) ； 2. The basic principle of downgraded use should be adopted for recycling valves. ； 3. Recycling valves must conduct pressure tests after maintenance/before putting into operation in accordance with the valve leak test and pressure test management requirements, and make corresponding records (pressure test records and usage records).
1# sjx In principle, it is possible. For the utilization of waste valves,* * There are no certain norms. In our company, it is required to repair and recycle old materials, but the requirements for use should be reduced. It should be used in unimportant work sections and when the temperature and pressure media are not very corrosive. In addition, the pressure must be re-tested and it can only be used after passing the test (the pressure test cannot be based on the original pressure level)
1# sjx In principle, it is possible. For the utilization of waste valves,* * There are no certain norms. In our company, it is required to repair and recycle old materials, but the requirements for use should be reduced. It should be used in unimportant work sections and when the temperature and pressure media are not very corrosive. In addition, the pressure must be re-tested and it can only be used after passing the test (the pressure test cannot be based on the original pressure level)