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Loading Valve – Model 504

Loading Valve – Model 504

EWFM supply the loading valve model 504 which is used as standard on our 3″and 4″ top loading arms for hydrocarbons. Loading Valves are available in two configurations, hold open or stay open type.

The Hold Open Valve requires the operator to manually hold the valve open through the entire filling operation, on releasing the valve lever the valve will shut off the flow.

Furthermore, the Stay Open Valve allows the operator to move the lever to the open position, the valve will remain in the open position until the operator moves the lever to the close position to stop the flow.

For more other loading arm accessories, please head to the bottom of our loading arm page where you can find a range valves, accessories and signal switches which are all compatible with our loading arms.

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Available Sizes:

3″ / 4″ / 6″


Aluminium / Carbon Steel / Stainless Steel

Operating Conditions:

Design Pressure: 10.0 Bar G


-15° C / +65°C

Seal Material: 


Alternative designs and specifications for the Loading Valve – Model 504 are available on request

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