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| THE DOUBLE ECCENTRICDESIGN |
| It effects friction-free contact between body and seat, the rotation axis(stem) of the valve disc is shifted from the center by a distance of
the width of A and B, a cam effect is produced which prevents from wearing the seal surface, lessens seating torque and offers longer
service life and easy operation. |
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| APPLICATION OF PIPING SYSTEM |
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Cargo oil system in the Tanker |
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Sea water system |
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Water ballast system |
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Fresh water system |
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Tank cleaning system |
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Fuel oil and Diesel oil system |
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Cargo tank Venting and Inert gas system |
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Other piping system where applicable |
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Bilge and Drainage system |
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| CLASSIFICATION BY CONNECTION TYPE |
| Appearance |
Type |
General Characteristics |
 |
AV-O Series AV-OSR (SEMI-LUG) |
| • |
General Applications - Shipbuilding water work, heating and ventilation power plants, Chemical plant etc. |
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| • |
Similar as water type except a pair of the thread bolt hole in way of the
upper and lower lug sides for easy maintenance of adjacent pipe. |
| |
| • |
Easy handling and light weight. |
| • |
Less quantity of bolt and easy installation |
| • |
Keep liquid remained during repairing adjacent pipe. |
|
 |
AV-O Series AV-OLR (LUG) |
| • |
General Applications: pump outlets, tank drains, ship side etc. |
| • |
Ring shape bolt hole for bolting with flange. |
| • |
Keep pressure inside during repairing adjacent one side pipe. |
| • |
Different flange shape. |
| • |
Possible damage on full face gasket. |
| • |
Hard repairing corroded bolt. |
| • |
More man-hour for installation. |
| • |
Heavy weight |
|
 |
AV-O Series AV-OFR (FLANGE) |
| • |
General Applications - Shipside valves, ballast valves, water works, power plants |
| • |
Both end with complete flange. |
| • |
Suitable to general pipe flange. |
| • |
Suitable for shopside valve in the ship. |
| • |
Heavy weight. |
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