Abstract: A security mechanism for a flow control device on a railcar and method of coupling the security mechanism to the flow control device are provided. A support member is coupled to the railcar. An extension handle has a first end operatively coupled to the flow control device on the railcar. An opposing second end of the extension handle forms a handle member. The extension handle is slidably coupled to the support member. A securement member is provided for coupling the support member to the extension handle to prohibit movement of the extension handle relative to the support member. The securement member is coupled to the extension handle proximate to the second end.

Abstract: An extension handle is coupled to a flow control device of a railcar. The extension handle includes a first rod having a first end operatively coupled to the flow control device, an opposing second end forming a handle, and a midsection slidably coupled to a support member coupled to the railcar.