Here are some key benefits of using ductile iron gate valve:

Strength

Ductile iron is stronger than traditional cast or carbon iron, allowing the valves to handle higher pressure ratings.

Corrosion resistance

Ductile iron is more resistant to corrosion from various environmental factors like chemicals, sediments, salts in liquids.

Tight shut-off

Gate valves provide an excellent seal when fully closed to prevent leaks through the valve body.

Durability

Properly installed ductile iron gate valves can last 50+ years with proper use and maintenance.

Temperature ranges

Most types can be used in liquid and gas applications from cryogenic to over 1000°F.

Cost-effectiveness

Provides long-lasting performance and reliability at competitive lifetime costs.

Easy maintenance

Gate valves can usually be serviced while still installed in the piping system if needed.

Specialization

Coatings and linings like epoxy or rubber can be added for highly corrosive substances.

Industry compatibility

Suitable for water, wastewater, oil/gas, mining, power, and other industrial processes.

The strength, durability and pressure handling of ductile iron make it a robust material choice for gate valves.