Special structure, advanced technology Twin seal, no leakage No abrasion, long life Repair online Fireproofing function   PERFORMANCE DATA: Nominal diameter: DN50~600 Nominal pressure: 1.6 2.5 4.0 6.4 Mpa Leakage rate: zero Design temperature: -120o~300o Product: crude oil, naphtha, light oil, aviation kerosene, LPG, LNG and other chemicals.

Double Block & Bleed Valve