Automatic Overfill Prevention Valve for Oil Tank
FDN-100-1
The Overfill Prevention Valve is installed in the riser of the underground oil storage tank and connected to the remote oil unloading port.
Quantity
Overfill Prevention Valve
Overfill Prevention Valve 4"
Overfill Prevention Valve 4"
The Overfill Prevention Valve is installed in the riser of the underground oil storage tank and connected to the remote oil unloading port. When the oil level in the oil tank rises to within 200mm from the top of the oil tank, the main valve of the Overfill Prevention Valve will close to prevent accidental overflow. After the main valve is closed, the oil accumulated in the oil discharge hose can only be discharged through a bypass valve, and the flow rate is controlled at 12-20L/min until the liquid level rises to within 50-80 mm from the top of the tank. If the liquid level is exceeded, the bypass valve will automatically close and completely cut off the flow of oil.
When the liquid level of the under storage tank reaches about 92% of the tank capacity during a fill, the product in the tank raises the lower float of the valve. The primary poppet of the valve is then released and reduces flow to about 10% of normal flow. The sudden reduction in flow created by the closing of the primary poppet provides"line shock"to the fill hose notifying the transport delivery driver the tank is nearing 95% capacity. The transport delivery driver can then stop filling the tank, disconnect and drain the delivery hose. The upper float will close off the product flow when the product level reaches 95% of the tank capacity.
Material:
1. Valve Body: Aluminum
2. Floats: Polyethylene
3. Upper & Lower Tube: Aluminum
4. First Stage Flapper: Zinc
5. Second Stage Flapper: Acetal
6. Guide Rod: Stainless Steel
Sample Shipping:
By express (UPS,DHL, FedEx, , etc.)
Sample's lead time: 2-5 days
Mass productions' lead time: 7-31 days
By sea shipping when bulk order
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