Questions regarding the selection of gear pumps and twin-screw pumps?
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Dear all, I would like to ask for your advice. Currently, in our engineering projects, we need to select pumps for transporting materials with high temperatures and high viscosity. These pumps are all insulated pumps, and the most commonly used type is the insulated gear pump, which is widely used in the molten resin industry. However, in most cases, gear pumps manufactured by American company Venkov are chosen. According to feedback from some installations, domestic gear pumps present too many problems during use； Now some manufacturers also choose domestic insulated twin-screw pumps, but the effectiveness of their use is not clear. Could anyone with experience in this area share their insights and knowledge? Thank you for your support
The last edit to this post was made by 1070273960 on 2018-11-19 at 11:45. We manufacture twin-screw pumps. Are there any relevant operating parameters required? Such as the medium being transported, flow rate, pressure, temperature, viscosity of the medium, etc. Could you please provide your contact information so that I can give you a detailed explanation of twin-screw pumps?
I wonder what temperature you use? What is the viscosity?
Are there any friends in the resin industry who could tell me about how you use your resin pumps?
Different companies produce different types of resins, and the operating conditions also vary. Generally, it is necessary to select a pump based on the properties of the material and the actual operating conditions on site
What concerns me is not what type of pump can be used, but rather the effectiveness of its application Both of the pumps mentioned above can be used, but what I wonder is about the usage of pumps in this field in China Regarding the parameters, I can only say that the temperature is 200 degrees Celsius, there is a slight positive pressure at the inlet, the outlet pressure is 1 MPa; the viscosity is unknown, but it needs to have a wide range of compatibility
Well, a wide viscosity range isn’t a problem
Based on viscosity and engineering examples, insurance for high-viscosity gear pumps