Why are air vessels fitted in reciprocating pumps?

⚙️ Purposes of Air Vessels
[Sub-heading 2]:
🔹 Uniform Liquid Supply:
→ To get a continuous supply of liquid at a uniform rate.
🔹 Power Saving:
→ To save the power required to drive the pump by reducing acceleration and friction heads, thereby lowering the work needed.
🔹 High-Speed Operation:
→ To run the pump at a much higher speed without any danger of separation. By fitting air vessels close to the pump, the acceleration head is reduced, allowing the pump to run faster without separation.

📌 Important Points
→ In a multi-cylinder reciprocating pump, the number of cylinders working together reduces flow pulsations and vibrations, so air vessels may not be required if velocity fluctuations are minimal.

📝 Additional Information:
→ The percentage of work saved in pipe friction by fitting air vessels is approximately 84.8% for a single-acting reciprocating pump and approximately 39.2% for a double-acting reciprocating pump.