Four Roll-Parallel Expanding-Double Flare Roll Type – 2” to 4-1/2” Outer Diameter
The Series 114 are equipped with four expanding rolls and two flaring rolls that are overlapped to prevent ridging. These tools can expand and flare in one operation. They are ideal for water tube boilers, fire tube boilers, economisers and air heaters. They can help reduce overall inventory since less equipment is required and more flexibility is offered with the interchangeable rolls and mandrels. They are made of selected chrome nickel alloy steel and treated in automatic electrically controlled furnaces to help ensure the longest possible service life.