What are the effects of the material viscosity on the operation of a reciprocating pump?
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What happens if the viscosity is lower than the actual value when specifying the pump conditions? I earnestly ask fellow travelers for their guidance!
Is the actual viscosity of the material high? Is that what you mean? High viscosity of the material may result in insufficient power for the pump, leading to inadequate output; it can also cause the material inside the pump to stay stuck there. The pump needs to be cleaned after operating for a long time
Reply to 2# li*angil: Yes, the actual viscosity is higher than that specified in the requirements.
For reciprocating metering pumps, when the viscosity exceeds the design specifications of the pump: 1. No flow occurs due to high viscosity; 2. No flow is delivered because the check valve does not close properly
One is the issue of the check valve closing mentioned by the classmate upstairs; another is that when the viscosity is high, the number of strokes per minute allowed by the pump is lower than when the viscosity is low
Reciprocating metering pumps should have little impact
Some engineering companies still have requirements in this regard; for example, a high number of strokes per minute can affect the lifespan of the diaphragm
I work in sales; I don’t understand manufacturing processes； But I understand what you mean seems to refer to a mechanical diaphragm pump
The default metering pump type in the petrochemical industry is the hydraulic diaphragm pump