Must a pump that uses styrene as the transfer medium be a shielded pump?
Thread Content
As the title suggests, is it possible to use a centrifugal pump with double-end seals?
All the styrene transfer pumps in our company are ordinary centrifugal pumps
It’s not necessary; we also use ordinary centrifugal pumps, and it’s important to control the temperature to prevent polymerization.
**The Office of the State Administration of Work Safety, in its \"Notice on Issuing the Safety Measures and Emergency Response Principles for the First Batch of Chemicals Subject to Strict Supervision\" (An Jian Zong Tang Guan San [2011] No. 142), requires that leak-free pumps such as shielded pumps or magnetic drive pumps be used for transporting this medium”
Of course. Nowadays, pumps used for transporting benzene can be made as centrifugal pumps or shielded pumps, and they are not difficult to maintain
A magnetic pump will do; shielded pumps are expensive and difficult to maintain
I have previously worked on the design of styrene process packages; various pumps can be used. Just pay attention to sewage flushing and ensure that the pumps do not get clogged
Using a magnetic pump can also save money; not only is the motor power required smaller, but it is also easier to maintain. Additionally, magnetic pumps are more durable than shielded pumps, and they can handle both high temperatures and impurity particles
**It is stipulated that leak-free shielded pumps or magnetic pumps must be used, but based on factory experience, styrene media tends to polymerize, so it is best not to use shielded pumps