steel, (Si) Silicone rubber seal 1-in. Pmax = 1.3 barg Tmax = 257°F (125°C) 11/2-in. NPT A-11 Rosemount 2120 Reference Manual 00809-0100-4030, Rev DA June 2007 Part Number Spares and Accessories Replacement Cassettes 02120-3000-0001 Direct load switching (2 Wire) (Red) (See ...