How do diaphragm pumps perform at temperatures above 150°C?
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1. Some sources indicate that the operating temperature for diaphragm pumps should not exceed 120°C; it is also said that when polytetrafluoroethylene is used for the diaphragm, the operating temperature should not go above 150°C. However, I have seen in the specifications provided by some imported diaphragm pump manufacturers that temperatures of over 300°C are still feasible. So, is there any temperature limit when using this diaphragm pump? 2. Another factor is viscosity; it should be fine to use a viscosity of 3000 cp for this diaphragm pump. What if it exceeds 5000 cp?
I’d like to hear everyone’s opinions; help!
5000CP is in paste or jelly form, right?
The concept of viscosity is actually quite vague; according to Baidu, the viscosity of ordinary glue is around 3000 cp.
There are diaphragm pumps with remote pumps, and the temperature in those cases can be higher
Metal diaphragms can withstand high temperatures, but they need to be replaced regularly! It should be replaced every about 6 months
It depends on whether your diaphragm is metal or non-metal. If it’s made of PTFE, abroad PFA is typically used (a copolymer of a small amount of perfluoropropylperfluoroethylene ether and polytetrafluoroethylene); in particular, PFA450 can withstand extreme temperatures of up to 300°C, while its normal long-term operating temperature range is from -196 to 260 degrees Celsius.