SLK-Connect Resource Centre
Jars & Jarring NOV Mechanical Spring Jar
An Adjustable Spring Jar using a Key and Belleville Washer Mechanism to Provide a Wide Range of Jarring Impacts
The NOV Mechanical Spring Jar uses disc springs (belleville washers) to provide the resistance that tension applied by the winch from surface has to overcome to fire the jars. The force required to fire the jars is adjustable……
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