The top loading arm is an articulated piping supported by a mechanical balancing (torsion or compression spring) or pneumatic system, which is used to transfer fuels or industrial liquids in tankers and railway tanks through the top manholes. For every kind of need relating to the loading area, different types of products can be configured with variable range of action and with flow entry direction from above and below. Top loading arms are equipped with a flow valve initiated with pre-opening and closing speed adjustment system. Otherwise, either a ball valve or other types of valve can be mounted according to the user's needs. Construction materials range from aluminum alloys and cast iron to special low temperature steels (KCS), stainless steels (AISI 304 and 316) to respond to the numerous applications in the sectors : Oil&Gas, chemical, food and bitumen. The same goes for the materials of the seals and gaskets such as: Viton ©(FKM), hydrogenated Buna (HNBR), Karlez ©(FFKM) , Teflon© (PTFE). The application of accessories such as: check valve, vacuum breaker valve, ATEX and EAC certified microswitches for all the control needs of the kinematics during the work phase, level sensors, limiters or mechanical locks; these allow you to customize each individual loading arm.
For compliance with the regulations in force applied to the sectors of use of the product, each loading arm is supplied with certificates and declarations of conformity to the ATEX, PED, Machinery directives (if applied), with the use and maintenance manual customized to the product created.
Silea also produces folding stairs
designed to allow access from the platform to the manholes of tankers and to improve the loading safety.