We are offering gate valve. Size 2" to 12" (dn50 - dn300) type bolted bonnet, os & y,narrow seat type disc. Rating class150, class 300 & class 600. Face to face asme b 16.10 pressure & temperature rating asme b 16.34 ( standard class) flange standard conformity asme b 16.5 general design api 600 testing api