-Bolted bonnet or pressure seal bonnet
-Class 150LB from 2" to 36",Class 300LB from 2" to 36",Class 600LB from 2" to 30",Class 900LB from 2" to 20",Class 1500LB from 2" to 16",Class 2500LB from 2" to 12"
-Swing type,anti-rotation disc
-Renewable seat rings
-Non-penetrate disc shaft
-Horizontal or vertical service
-Flange or butt welding ends
-Available body material:A216 WCB,A217 WCC,A217 WC6,A217 WC9,A351 CF8,A351 CF8M,A351 CF3,A351 CF3M，A352 LCB,A352 LCC etc
2)Disc and seat ring may either be solid facing material or a base material equal to or better than the body/bonnet material with facing as shown.