Tube Jar

 

The DTI Tube Jar consists of a simple rod mandrel free to move axially within a cylinder that can be stroked open and then rapidly closed (or vice versa) to provide an up or down impact. The cylinder has multiple ports that enable efficient fluid by-pass during the stroking action. The effectiveness of the jarring impact is dependent upon the weight of stem bar attached immediately above the Tube Jar. DTI Tube Jars are fitted with dual fishing necks.

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DTI offer alternate sizes, materials and thread connections. Please contact us for more information.

Part NumberFish NeckOutside DiameterStandard ConnectionStroke
075TJAR*STROKE0.750"0.75"5/8 - 11 UN12 - 24 - 30"
100TJAR*STROKE0.750"1.00"5/8 - 11 UN12 - 18 - 30"
125TJAR*STROKE1.188"1.25"1 1/16 UN20 - 24 - 30"
150TJAR*STROKE1.375"1.50"15/16 UN20 - 24 - 30"
188TJAR*STROKE1.750"1.875"1 1/16 UN20 - 24 - 30"
212TJAR*STROKE1.750"2.125"1 1/16 UN20 - 24 - 30"
250TJAR*STROKE2.313"2.50"1 9/16 UN20 - 24 - 30"

Tube Jar

125TJAR20 Tube Jar

 

The DTI Tube Jar consists of a simple rod mandrel free to move axially within a cylinder that can be stroked open and then rapidly closed (or vice versa) to provide an up or down impact. The cylinder has multiple ports that enable efficient fluid by-pass during the stroking action. The effectiveness of the jarring impact is dependent upon the weight of stem bar attached immediately above the Tube Jar. DTI Tube Jars are fitted with dual fishing necks.

Data Table

Part NumberFish NeckOutside DiameterStandard ConnectionStroke
075TJAR*STROKE0.750"0.75"5/8 - 11 UN12 - 24 - 30"
100TJAR*STROKE0.750"1.00"5/8 - 11 UN12 - 18 - 30"
125TJAR*STROKE1.188"1.25"1 1/16 UN20 - 24 - 30"
150TJAR*STROKE1.375"1.50"15/16 UN20 - 24 - 30"
188TJAR*STROKE1.750"1.875"1 1/16 UN20 - 24 - 30"
212TJAR*STROKE1.750"2.125"1 1/16 UN20 - 24 - 30"
250TJAR*STROKE2.313"2.50"1 9/16 UN20 - 24 - 30"

Product Customisation

DTI offer alternate sizes, materials and thread connections. Please contact us for more information.