【Weekly Topic】On threaded connections in caustic soda media
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Companies that use caustic soda as a medium are aware that alkali solutions of different concentrations and at different temperatures require different types of pipelines for transportation. If the temperature of the alkali solution is too high, pipelines made of special materials are necessary; however, at normal temperatures with ordinary concentrations, standard carbon steel pipelines are sufficient. For the connection parts of alkali solution pipelines, low-concentration, room-temperature flange connections can ensure no leaks, but threaded connections are prone to leakage. This leads to this week’s topic: This week’s topic: How can threaded connections for low-concentration, room-temperature alkali solution pipelines be made leak-proof? We welcome everyone to actively participate in the discussions. [Collection of Essential Knowledge for the Mechanical Forum] http://bbs.hcbbs.com/thread-1389197-1-1.html Topics for each week and daily questions are being collected (prizes available for participation) http://bbs.hcbbs.com/thread-1373282-1-1.html A summary post of weekly topics: http://bbs.hcbbs.com/thread-1404940-1-1.html Starting today, the Mechanical Forum is offering rewards to all its members http://bbs.hcbbs.com/thread-1489563-1-1.html Go and claim your rewards now – the distribution has begun!
1. The winding direction of the tape must not be incorrect. 2. When connecting and rotating, it can only move forward in one step and cannot reverse.
When alkali solution leaks, it’s very noticeable – it turns white. I have one question: our alkali reception tanks and alkali mixing tanks are all white, but this phenomenon is not seen in the alkali solution circulation system.
Threaded connection, also known as screw connection, involves using internal and external threads to connect pipes to each other or to valves. To prevent leaks, the winding direction of the raw material tape must not be incorrect.
Threaded connection, also known as screw connection, involves using internal and external threads to connect pipes to each other or to valves. To prevent leaks, the winding direction of the raw material tape must not be incorrect.
Use a good quality sealant tape for leak prevention; it’s best to tighten it properly at once and not touch it again
It is possible to change the thread pitch of the threads to a finer pitch; for example, while a regular thread has 3 pitches, a fine-pitch thread can have 1.5 pitches, etc. Anoxygenic adhesive can also be applied at the time of connection to achieve a sealing effect.
Use genuine PTFE tape; most of the tape available on the market is fake.
1. The winding direction of the tape must not be incorrect. 2. When connecting and rotating, it can only move forward in one step and cannot reverse.