Used Pfaudler 1 gallon T316L stainless steel reactor. Internal rated 200 psi / FV @ 500 degrees F. Jacket rated 150 psi @ 500 degrees F. Jacket side wall and bottom head. Gast Hydraulic drive model 4AM-NRV-22B with agitator. SN E382-1415. NB 42153 Built 1983.