The front liner of a slurry pump is one of the important flow-through components of the slurry pump. It is usually used in conjunction with the front casing to form a semi-closed flow path, allowing the slurry to flow orderly within the pump.
It bears the direct impact of high-speed slurry;
It forms a sealed flow path together with the casing, impeller, and other components;
It guides the slurry from the inlet to the impeller region smoothly.
According to different structural forms, front liners can be divided into the following two types:
Split Front Liner: Common in most horizontal slurry pumps (such as AH series, ZJ series, etc.), independently installed, making replacement and maintenance convenient;
Integral Front Liner: Found in some vertical or submersible slurry pumps (such as ZJL, submersible pumps), where the front liner is cast together with the front casing as an integrated structure, simplifying the design but making maintenance inconvenient.
The front liner is usually located on the pump's inlet side, directly connected to the inlet pipe, and bears a significant fluid impact, especially at the bottom area of the outlet where casting defects (such as shrinkage cavities, air bubbles) or wear are prone to occur.
