Bottom loading arm, piston balance.
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BOTTOM LoAdÌNq ARMS ; is used for bottom loading in: iding system offers the advantage of being able to operate directly on the ground lei/el and moreover, it prevents the formation of the electric charges that may be created in Lop lead rig sileaL LU :;, ^urLlic'incrc- it LI ÌLI™; un easier and quicker connection, the full recovery of vapours produced during the loading phase, the simultaneous loading of 5 products, and a drastic cost reduction in the loading bay construction. Main pipe, series 1400. made of carbon steel, Style F50 with swivel joints series NB79. It allows both a horizontal and vertical plane of rotation. It is complete of two swivel joints with double row of ball bearings, with Vi ton "-' seals. Each G'.VVGI C nt is supplied with grease nipple. Inlet flange ANSI 150#. Compression spring balancing unit, series 2000. made of carbon Steel. It is usfiil for riHlannnrj the projecting part of the loading arm. It is composed by an external thick pipe and un internal shifting rod made of stainless steel wit'i a strong spherical joint c( its end. Inside the piston there are compression springs, function is to balance the loading arm . Intermediate swivel, series 0858 made of aluminium, Styl is complete of a swivel joint with double row of ball bear n¡ relative purging valve. Vertical flexible hose, conductive, PN16 series 3120. Internal coating made of smooth special black rubber; in the standard version, it is resistant to hydrocarbons with aromatics contents till 50% and enleaded gasoline with maximum 1 & :. M_BE [on request, wc CLIP si.Ljply haiïcE resistant to MTBE contents greater than 15:;,} -lo in''ore ed with an embedded steel and robust synthetic fibres, complete of copper thread for static electricity dissipation. External coating made of black conductive rubber, high resistant to wear, oils, fuels and atmospheric agents. It is used to make the coupling position flexible. The hose is connected to aluminium TTMA flanged tube with "Safety Clamps" collar in aluminium. Elbow swivel joint, series 0876, made of aluminium, style F30. It is used to keep the coupler in horizontal position. It is complete of a swivel joint with double row of ball bearings with grease nipple and relative purging valve, and Viton™ seals. A handle faci Ítalos L ie arm movements. supplied with grease nipple i Intermediate flanges comply with TTMA norm:

A and B: please refer to the drawing in following pages. Silea arm dimensions and material can be modified according to customer needs. The main pipe and the aluminium pipes are protected by with Grey Polyester Powder, RAL 7035 painting, baked in oven. Aluminium swivel joints are protected by anodic oxidation. The steel balancing piston and the screws are treated with a coating composed essentially by lamellar Zinc and Aluminium with a chrome oxide mineral binder. Wear exposed parts are protected by hard anodic oxi- DESIGN DATA] TYPE OF FLUID HYDROCARBONS NOMINAL FLOW RATE [m'/ri] 70 120...