FillSafe Zero

Banlaw’s mechanical tank overfill protection systems help mining, construction, and rail companies that need to refuel diesel-powered machines efficiently and safely.

A Banlaw FillSafe Zero system consists of a Flow Control Valve, a Level Sensor, and a Pilot Line.

Under normal operation, there are 2 operating states of a FillSafe Zero system;

1. Tank Filling;.
   1. Bleed flow through Pilot Line.
   2. Level Sensor float valve “open”
   3. Flow Control Valve “open”.
   4. Liquid flow into tank.
2. Tank Filled (full);
   1. Tank Filled (full);
   2. Level Sensor float valve “closed”.
   3. No bleed flow through Pilot Line.
   4. Flow Control Valve “closed”.
   5. Valve terminates (closes) liquid flow into tank.

Figure 1 illustrates an example of a FillSafe Zero system incorporating a Valve & Receiver Assembly in conjunction with a Banlaw BVLS model “venting” Level Sensor. The tank is being refilled in this illustration;
• Level Sensor; Pilot Line passage open, and BVLS venting air from the tank to atmosphere.
• Flow Control Valve; open, allowing fuel to enter the tank.
• Dry-break Diesel Refuelling Nozzle; securely connected and in the ON (open) position.

Figure 2 now illustrates this same system once the tank has been filled to the nominated capacity;
• Level Sensor; Pilot Line passage closed.
• Flow Control Valve; closed, prohibiting fuel entering the tank.
• Dry-break Diesel Refuelling Nozzle; in the OFF (closed) position, awaiting disconnection.

Click below to view our feature rich FillSafe Zero product range. We have cost-efficient solutions for an incredibly wide range of diesel-powered machines and stationary tanks.