Which type of hydrants are most commonly used in utility maintenance?

The most commonly used type of hydrants in utility maintenance are dry barrel hydrants. Dry barrel hydrants are designed so that the water supply is located below the frost line, allowing them to be used in colder climates without the risk of freezing. When the valve is closed, water is prevented from remaining in the hydrant, thus ensuring that it stays dry during winter months. This design is essential for effective utility maintenance as it allows for reliable operation year-round, helping to facilitate emergency response and routine maintenance tasks without interruption due to freezing issues.

While wet barrel hydrants are often used in warmer climates where freezing isn't a concern and post and flush hydrants serve specific niche purposes, the versatility and freeze-resistant design of dry barrel hydrants make them the standard choice for utility maintenance across various environments.