High-pressure hoses are used instead of stainless steel pipes for mechanical seal flushing
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In the mechanical seal flushing plans (PLAN52, 53), stainless steel pipes are specified; can high-pressure hoses be used as a substitute?
The implementation standards cannot be replaced; if they’re not followed, then why ask this question?
During factory performance tests, hoses can be used as a temporary substitute, but standard procedures must be followed during normal use
Why does the original poster want to use a hose? Save costs? Easy to disassemble in daily use? Let’s follow the standards. Since it is of PLAN52/53 type, there is still a certain risk associated with the pumped medium; what if the bellows inside the hose gets damaged and the medium inside leaks out? That would be even more dangerous.
PLAN52 is suitable for flammable, explosive, toxic, and volatile cleaning fluids. PLAN53 is suitable for high-risk fluids containing particles. Therefore, the specifications require stainless steel pipes; high-pressure hoses cannot be used as a substitute. Otherwise, you need to consider other flushing solutions based on the process requirements and the properties of the medium.
Sure, it’s fine as long as you don’t follow the rules； But I think it depends on the customer; as long as they can accept it, that’s fine ；
High-pressure hoses can handle a pressure of at most 20 kilograms, and there is also a risk of aging and breaking; they are not a sustainable solution