Class : 800 #, WOG 1000, WOG 2000, WOG 3000 seats : PTFE / GFT MOC : Forged Steel ASTM A 105 Internals : SS304/316 Piece : 3 Bore : Reduced Ends : Screwed BSP/NPT Sizes : 0.5" to 2" Operation : Manual Standard : BS5351 (ISO 17292)