WDOQ Vapor Recovery pull off valve

Product Description

The scenario you've described highlights the importance of using a reliable and effective automatic unloading overflow valve, such as the one mentioned with the pull-off feature, in oil and gas applications. Here's a detailed explanation of how this valve can help prevent fuel oil overflows and other hazards associated with tanker collapses or driver errors:

Block-Off Event and Hose Connection:
In the context of oil and gas tankers, the block-off event refers to the need to safely disconnect the refueling gun or hose from the tanker without causing any spills or overflows. The valve you've mentioned, with its pistol and WDHO (Water Deluge Hose) connection, is designed to securely connect to the tanker's filling port, ensuring a tight seal that prevents leaks or spills during the unloading process. The angular pressure rating of less than 150kg indicates that the valve is designed to withstand moderate pressure loads, making it suitable for use in oil and gas tanker applications.

Driver Errors and Theft Prevention:
As you've noted, driver errors, such as forgetting to disconnect the refueling gun or hose, can lead to serious hazards, including fuel oil overflows and theft. The pull-off valve can help prevent these issues by automatically shutting off the flow of fuel oil when the hose or gun is disconnected. This feature ensures that the valve remains closed and prevents any unintended spills or overflows, even if the driver forgets to manually shut off the valve. Additionally, the valve's design can deter theft attempts, as it is difficult to bypass or tamper with without proper authorization.

Prevention of Tanker Collapse-Induced Overflows:
Tanker collapses, though rare, can cause significant damage and fuel oil overflows, posing a significant threat to the environment and personnel safety. The pull-off valve can help prevent these overflows by ensuring that the fuel oil flow is immediately shut off in the event of a tanker collapse or other emergency situation. This feature is particularly important in areas prone to earthquakes, floods, or other natural disasters, where tanker stability can be compromised.

Cost Savings:
By preventing fuel oil overflows and other hazards associated with driver errors, tanker collapses, and theft, the pull-off valve can help reduce costs associated with cleanup, repairs, and lost revenue. It also promotes a safer and more environmentally responsible operation, which can improve a company's reputation and attract more customers.

In summary, the automatic unloading overflow valve with pull-off feature is a valuable tool for oil and gas tanker applications. Its ability to prevent fuel oil overflows, deter theft, and withstand moderate pressure loads makes it an essential component of any tanker's unloading system.