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Note 1: The liquid gasket for installation may not be supplied due to export regulations. If the
liquid gasket TB1121 is not included in the installation materials, prepare the liquid gasket
specified in your country.
Note 2: The ball valve requires service space of 700 mm. For details, see the installation
drawing at the back of this manual.
1.
Unfasten M16 nut (10) and flat washer (11) from the assembled gate valve to remove the
five items shown below.
Ball valve (20)
Flange (3)
Gasket 1(18)
Gasket 2(18)
Shaft assy.
2.
Set the flange (3) to the mounting location. The "FORE-AFT" line on the spacer must be
parallel with the ship's fore and aft line (within 1°). For horizontal direction, the bottom of the
spacer must be parallel with the ship's draft.
Note: Do not paint the top side of the flange (3) and handle it carefully to preserve the
waterproofing.
3.
Weld the flange (3) to the ship's hull. The welding and doubling methods are left up to the
shipyard.
4.
Apply the Liquid gasket TB1121 to both sides of the gasket1 (18), and put it on the flange
(3) which is indicated as "dashed-dotted line" (mounting surface for the Gasket 1 (18)) in
the figure at step 1.
5.
Apply the Liquid gasket TB1121 to the hollow side of the flange (3).
6.
Clean the top and bottom of the ball valve (20), and put it on the gasket1 (18) set on the
flange (3).
16
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