chemical reactor / stirred tank / laboratory

The Model 4555 and 4557 are the biggest reactors manufactured by Parr as they have a maximum load capacity of 5 gallons. These reactors feature heads which are either secured or movable. They can come with an FKM 0-ring seal making them capable of handling working temperatures up to 225°C or an FFKM O-ring for temperatures up to 275°C, or with a flat PTFE gasket for working temperatures up to 350°C.

In the movable head unit, the container is supported by a mechanism which minimizes the physical effort needed to manage bulky components. The hoist is connected to a support column that gives appropriate means for lifting the head and cylinder out of the stand. The parts may be moved to the holding position on the right side of the stand.