Parr offers a number of different reactors in the 4580 Series in a variety of sizes and with different mountings for operating pressures to 3000 psi (200 bar) and temperatures to 500 °C.

4581 – 4582 Reactors
These 1 gallon (3.75 L) and 1.5 gallon (5.5 L) reactors are designed for 3000 psi (200 bar) maximum pressure with a 500 °C maximum working temperature and mounted on movable carts.

4583 – 4584 Reactors
These are 1 gallon (3.75 L) and 1.5 gallon (5.5 L) fixed head reactors mounted on floor stands with pneumatic lift.

All of these reactors have been designed with suitable valves, fittings and modifications to the vessel itself to operate at the higher temperature and pressure ratings.
Flat, flexible graphite (FG) gaskets are used for temperatures in the higher range to 500 °C. These can be replaced with PTFE gaskets for procedures in which the temperature will not exceed 350 °C.

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