Which equipment is used to transfer AFFF between mixing stations?

Which equipment is used to transfer AFFF between mixing stations?

• A. Manual hand pump
• B. Gravity line
• C. The injection pump
• D. Venturi injector

Answer: (C)

Transferring AFFF between mixing stations requires a device that can reliably move the concentrate with precise control. An injection pump is built for this role: it draws AFFF from the source station and pushes it into the receiving line at a set, controllable rate. That controlled transfer ensures the concentrate is moved safely and consistently, maintains the proper mix at the destination, and reduces exposure and handling hazards for operators. Compared to a manual hand pump, the process would be slow and labor-intensive, making it impractical for routine transfers. A gravity line depends on a height difference and steady elevation, which isn’t always available or reliable for transferring between stations. A venturi injector uses a separate water stream to entrain concentrate, but it relies on other flow conditions and isn’t as suitable for transferring concentrate between stations with independent control over the transfer rate. The injection pump provides direct, controlled movement of the concentrate, which is why it’s the best choice for this task.

Transferring AFFF between mixing stations requires a device that can reliably move the concentrate with precise control. An injection pump is built for this role: it draws AFFF from the source station and pushes it into the receiving line at a set, controllable rate. That controlled transfer ensures the concentrate is moved safely and consistently, maintains the proper mix at the destination, and reduces exposure and handling hazards for operators.

Compared to a manual hand pump, the process would be slow and labor-intensive, making it impractical for routine transfers. A gravity line depends on a height difference and steady elevation, which isn’t always available or reliable for transferring between stations. A venturi injector uses a separate water stream to entrain concentrate, but it relies on other flow conditions and isn’t as suitable for transferring concentrate between stations with independent control over the transfer rate. The injection pump provides direct, controlled movement of the concentrate, which is why it’s the best choice for this task.