This is a marine pneumatic quick-closing valve, model DN25 with a pressure rating of 2.5MPa. Designed to meet GB/T 5744 standards, it features a cast steel body and flange ends for reliable installation in ship fuel oil, lubricating oil, and diesel pipelines. The valve is operated by pneumatic power and equipped with a manual red lever for emergency shutdown, ensuring immediate isolation of the fluid circuit in case of fire or hazard. It is a critical safety component in shipboard machinery spaces to prevent fuel spread and fire escalation.
