Choosing the "TOP" configuration ensures that the pump is built with high-strength materials (often an aluminum body with cast iron end caps). This hybrid construction allows the pump to remain relatively lightweight while handling the extreme internal forces of a 47cc displacement.

In the standardized nomenclature used by many European and global hydraulic manufacturers (such as Galtech or Walvoil), each segment of the code tells a story:

Usually rated for 230–250 bar (3,300–3,600 PSI) continuous duty.

If you are sourcing parts for machinery, maintaining a fleet, or working in fluid power systems, understanding what this code represents is the difference between a seamless repair and a costly mismatch. 1. Breaking Down the Code

Small excavators, skid steers, and loaders.

While it might look like a random string of characters, is a specific technical identifier often associated with heavy-duty industrial components—specifically hydraulic gear pumps .

This usually indicates the mounting style. "EP" often refers to a European standard 4-bolt flange, which is a common configuration for tractors, forklifts, and construction equipment.

Large tractors, harvesters, and grain handling systems.

When replacing a pump with this code, it is vital to verify the (tapered or splined) and the rotation direction (Clockwise or Counter-Clockwise), as these can vary even within the same "EP 347" family.