118
419050/B
Verifying the quality of the gate valve
installation
Once the mounting flange, gate valve and transducer dock have been installed, a quality
inspection must take place. The inspection shall verify that the units has been installed
correctly, and that the hull unit can be mounted on top of the transducer dock.
Prerequisites
Neither tools nor instruments are required.
Context
The mounting flange must be mounted so that its top mating surface is in parallel with
the sea surface during normal operating conditions. The transducer dock on top of the
gate valve must remain vertical during the same conditions.
The top mating surface of the transducer dock must be protected with a wooden cover at
all times until the hull unit is installed. It is very important that this surface is clean and
undamaged, because it must be watertight after the hull unit has been installed.
Objects protruding from the hull will generate turbulence and flow noise. This will
reduce the SC90 performance. Protruding objects may be zinc anodes, transducers or
even the vessel's keel. Holes and pipe outlets are also important noise sources, as well as
rough surfaces caused by bad welding. Even traces of sealing compound, sharp edges,
bolts or empty bolt holes will create noise.
The following requirements must be met:
• All measurements are made and the results are written down.
• The top of the transducer dock is in parallel with the water line.
• The top mating surface on the transducer dock is clean without sand, dust or any
other destructive particles. Is is even and smooth without scratches, dents or other
physical damage.
• The gasket or O-ring on the top of the transducer dock is not damaged.
• The installation of the gate valve has left enough space to access end switches and (if
relevant) hydraulic connections.
• If relevant, the hydraulic system has been installed as specified in the relevant
documentation.
• The hull plating surrounding the mounting flange is even and smooth without
protruding objects that can cause noise.
• All necessary preparations have been made to design and install sufficient support
brackets.
Simrad SC90 Installation Manual
Summary of Contents for SC90
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Page 16: ...14 419050 B Simrad SC90 ...
Page 219: ...419050 B 217 Øverland UPC 3005 Dimensions Cable layout and interconnections ...
Page 223: ...419050 B 221 Øverland UPC 5000P Dimensions Cable layout and interconnections ...
Page 438: ...436 419050 B 427177 Transducer dock dimensions page 494 Simrad SC90 Installation Manual ...
Page 441: ...419050 B 439 Drawing file ...
Page 442: ...440 419050 B Simrad SC90 Installation Manual ...
Page 445: ...419050 B 443 Drawing file ...
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Page 455: ...419050 B 453 Drawing file ...
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Page 463: ...419050 B 461 Drawing file ...
Page 468: ...466 419050 B Simrad SC90 Installation Manual ...
Page 469: ...419050 B 467 Related topics Installing the optional gate valve DN350 page 84 Drawing file ...
Page 471: ...419050 B 469 Drawing file ...
Page 473: ...419050 B 471 214043 Gate valve installation DN350 Drawing file ...
Page 475: ...419050 B 473 422915 Gate valve installation DN350 Drawing file ...
Page 477: ...419050 B 475 083045 Gate valve installation DN500 Drawing file ...
Page 479: ...419050 B 477 33414 Gate valve dimensions DN350 Drawing file ...
Page 480: ...478 419050 B Simrad SC90 Installation Manual ...
Page 481: ...419050 B 479 Related topics Installing the optional gate valve DN350 page 84 Drawing file ...
Page 482: ...480 419050 B 33473 Gate valve dimensions DN350 Simrad SC90 Installation Manual ...
Page 483: ...419050 B 481 Related topics Installing the optional gate valve DN350 page 84 Drawing file ...
Page 484: ...482 419050 B 33498 Gate valve dimensions DN500 Simrad SC90 Installation Manual ...
Page 485: ...419050 B 483 Drawing file ...
Page 487: ...419050 B 485 37357 Gate valve dimensions DN500 Drawing file ...
Page 488: ...486 419050 B Simrad SC90 Installation Manual ...
Page 489: ...419050 B 487 Related topics Installing the optional gate valve DN500 page 103 Drawing file ...
Page 491: ...419050 B 489 Drawing file ...
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Page 495: ...419050 B 493 Related topics Installing the optional gate valve DN350 page 84 Drawing file ...
Page 497: ...419050 B 495 Drawing file ...
Page 542: ... 2018Kongsberg Maritime ISBN xxx ...
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Page 544: ...Simrad SC90 Fish finding sonar Installation Manual ...