What type of gear pump is more suitable for suction glue

How to choose a gear pump for glue suction? The characteristics of glue include high viscosity, and some types have poor fluidity. In response to these conditions, we specially recommend several models specifically designed for high viscosity, ensuring smooth and stable delivery, Gear pump with excellent wear resistance. For medium to high viscosity adhesives, the ZYB-type residue oil pump is suitable. It offers high precision, no pulsation, and excellent repeatability, making it ideal for coating and mixing processes with stringent metering accuracy requirements, or for chemical-grade or food-grade adhesives with corrosive or sanitary properties. For conveying media with extremely high viscosity, the CB-type glue pump (a type of gear pump) is recommended. This pump features a large gear module, making it suitable for highly viscous media.1. Determine the type: First, assess the viscosity and refer to the above table to identify the general direction for the pump. Additionally, confirm whether the glue is corrosive (select stainless steel) and whether it contains particles (a filter is required). 2. Calculate parameters: Based on the required flow rate (e.g., L/min) and initial speed (e.g., 1500 rpm), use the formula Flow rate = Displacement × Speed × Efficiency to determine the required displacement. Don't forget the pump The rated pressure should have a margin of 1.1 to 1.5 times. 3. Check the details: Finally, clarify whether the sealing material is solvent-resistant and whether a heating and insulation jacket is required to maintain fluidity. Special Note: Prevent "freezing" The biggest fear when extracting glue is the pump getting stuck. Core operational rule: After every shutdown, the pump chamber must be immediately cleaned with the appropriate solvent to prevent glue from solidifying. This is the most critical step in ensuring the pump's lifespan. The viscosity and stickiness of glue are two distinct concepts. If the issue is simply that the glue is too thick, there is a wider range of options available. As long as the glue has fluidity, it can be pumped. For example, gear pumps like the KCB type, arc gear pumps like the YCB type, and especially the ZYB type sludge oil gear pump designed for milk grinding are all suitable. However, if the glue is extremely sticky—meaning it exhibits significant stringiness—only the ZYB or CB type glue pumps can be used.