Due to the common independence of ships and their flight ability, carrying capacity, working performance, safety performance, size and weight requirements, some special technical requirements for marine pumps must be different from other pumps and land pumps. These special requests are commonly referred to as ocean conditions. Due to these ocean conditions, marine pumps have certain peculiarities in parameter selection, structural design, installation, and maintenance. If the key points are detailed, they can be summarized as follows:

(1) Reliable operation performance, no cavitation damage

(2) Low work vibration and good vibration resistance

(3) Minimum mechanical noise and liquid noise

(4) Small size, light weight, and small space

(5) Ensure normal operation under tilt and rotation conditions

(6) It has sufficient impact resistance

(7) Good corrosion resistance and wear resistance

(8) Reliable sealing structure and sealing performance

(9) Easy disassembly and assembly without the need for specialized tools

(10) Highly generalized, etc