Valves

Ball – Gate – Check – Butterfly – Block Double Block And Bleed Valves(DBB) – Control Valves – Emergency Shutdown Valves(Esdvs) – Chock Valves – Pressure Safety Valves (PSV) – Pressure – Vacuum Valves And Vent Valve – Gauge Hatches – Emergency Pressure Relief Vents – Flame Arrestors.