Page 58 - Vetus
P. 58

SOUND INSULATION MATERIALS

       Installation guidelines

       Preparing the engine room

       Sound is like water and until the last gap is closed, it will find a way out of the engine room. Therefore it is important to cover as
       much of the surface in the engine room as possible and to close all possible leaks. Any small gaps or holes in, between or under the
       bulkheads should be filled with flexible sealant, foam or other material. When the ‘engine room’ is in direct contact with the bilge
       or other spaces that run through the boat, it is recommended to build bulkheads or a box around the engine.

       Fitting the sheets

       While fitting the sheets, work around obstacles by cutting the sheet into the right shape and try to fit the puzzle as neatly as
       possible before actually sticking the sheets in place. Note that tanks tend to amplify noise. When a tank is in the same space as the
       engine, cover the tank in insulation sheets or build a bulkhead between them.

       Hatches and air intakes
       Hatches and air intakes may leak noise. Hatches can be sound proofed by using an insulation tape between the touching surfaces.
       Air intakes however are more difficult to insulate, as the engine needs air for combustion and cooling. Creating a labyrinth or
       installing a special damper will generally solve the noise leak without choking the engine.







       Sound deadening sheet type GF140S

       Absorbing both high and low frequency noise and vibration
       These modern light-weight sound deadening sheets are self-adhesive and have
       an aluminium face layer.
       Specifications
       •  Dimensions 3.9 ft (120 cm) x 2.6 ft (80 cm) x 1 /16“(40 mm)
                                            9
       •  Weight per plate 12.35 lbs (5,6 kg)
       •  Temperature resistance up to 284°F (140°C)
       Type       Description
                                                                              GF140S
        GF140S     Sound-deadening glass wool sheet




       Sound deadening sheet type PU130S

       Ideal for smaller engine installations
       These sound deadening sheets have excellent noise and vibration reducing
       qualities and come in packs of 4 sheets.
       Specifications
       •  Dimensions 3.3 ft (100 cm) x 1.6 ft (50 cm) x 1 /16” (30 mm)
                                            3
       •  Weight per plate 3.31 lbs (1,5 kg)
       •  Temperature resistance -22°F (-30°C) to + 194°F (90°C)
                                                                              PU130S
       Type       Description
        PU130S     Sound-deadening sheets (pack of 4 sheets)










        58  Engines and around the engines - Want to know more? Visit www.vetus.com
   53   54   55   56   57   58   59   60   61   62   63