Image 4

Published Date

January 1991


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Prevention of Oil Spillages Through Cargo Pumproom Sea Valves, 2nd Edition

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Now in its 2nd edition, this OCIMF publication is a detailed study of the causes of oil spillages and includes a number of best practice recommendations to minimise the frequency of future spillages.

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Since the publication of the first edition of this guide, there have been numerous advances and regulatory updates relating to oil tanker construction and operating practices. Prevention of Oil Spillages Through Cargo Pumproom Sea Valves has been fully updated to reflect and incorporate these changes, and provides a detailed exploration of the causes of oil spillages, as well as recommended best practice for the construction, equipment and operating procedures required to help prevent future spillages.

Introduction

1. Definitions

1.1 Butterfly Valve

1.2 Gate Valve

1.3 Globe (Mushroom) Valve

2. Description of Valve Systems in Use

3. Reported Experience of Valve Types

3.1 General

3.2 Gate Valves

3.3 Globe Valves

3.4 Butterfly Valves

4. Sea Valve Monitoring

5. Summary of Operating Experience 

5.1 Responsibility

5.2 Display of Notices

5.3 Testing of Sea Valves

5.4 Securing of Sea Valves

5.5 Discharge and Loading of Segregated Ballast

5.6 Opening of Sea Valves

5.7 Cargo Handling Considerations

5.8 Check Lists

5.9 Overboard Inspection

5.10 Maintenance

5.11 Training of Personnel

6. Recommendations

6.1 General

6.2 Construction and Equipment

6.3 Operating Procedures

In conventional oil tankers, or in segregated ballast tankers when transferring ballast to or from cargo oil tanks, the cargo pumproom sea valves provide a direct link between the cargo oil tanks and the sea.

 

The first edition of this guide was published in 1976 following extensive investigations into the causes of spillages through cargo pumproom sea valves. Since then oil tanker construction and operating practices have undergone significant changes brought about particularly by the entry into force of MARPOL 73/78. However, the changes referred to have not altered the need for guidance on the potential problem of spillages through sea valves and the International Chamber of Shipping (ICS) and the Oil Companies International Marine Forum (OCIMF) commend this latest edition of the guide for use by all oil tanker operators and personnel.

 

The recommendations contained in this guide are based on long-established practices and those concerned in the management and operation of oil tankers are encouraged to refer to them when reviewing or formulating operational policies.

 

While the guidelines are intended to have general applicability, it is understood that differences in ship design may prevent the adoption of some of the recommended procedures or modifications on existing ships. This does not diminish the validity of the recommendations or their importance. On the contrary, it only serves to confirm them as standards which can and should be met in the design and building of the next generation of ships.

The Oil Companies International Marine Forum (OCIMF) is a voluntary association of oil companies with an interest in the shipment and terminalling of crude oil, oil products, petrochemicals and gas. OCIMF focuses exclusively on preventing harm to people and the environment by promoting best practice in the design, construction and operation of tankers, barges and offshore vessels and their interfaces with terminals. Learn more at www.ocimf.org

Title: Prevention of Oil Spillages Through Cargo Pumproom Sea Valves, 2nd Edition
Edition: Second
Number of Pages: 15
Product Code: 4400W132
ISBN: ISBN 13: 978-1-85609-019-3 (9781856090193), ISBN 10: 1-85609-019-1 (1856090191)
Published Date: January 1991
Binding Format: Paperback
Book Height: 210 mm
Book Width: 150 mm
Book Spine: 3 mm
Weight: 0.10 kg
Author: OCIMF

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