Lantern Ring

A lantern ring is a component used in certain types of pumps, including power and hand pumps. It is part of the sealing system of the pump and is typically located near the stuffing box or gland packing area.

The purpose of a lantern ring is to provide a controlled leakage path for the fluid being pumped. It is designed to allow a small amount of fluid to escape from the pump's casing, which helps to lubricate and cool the packing or mechanical seal. This controlled leakage also helps to prevent the buildup of pressure within the stuffing box, which could lead to damage or failure of the packing or seal.

Lantern rings are typically made of a durable and corrosion-resistant material, such as stainless steel or bronze. They are often designed with radial grooves or holes to facilitate the flow of fluid through the ring.

In summary, a lantern ring is an important component in power and hand pumps that helps to maintain the integrity of the sealing system and prevent damage to the packing or mechanical seal.