Ecvv Trade
the pre-existence of Tianhe Petroleum Machinery Joint-Stock Co., Ltd

China Manufacturer with main products: Drilling Tool, Fishing Tools, Such as Stabilzer, Bucking Unit, Drill Collar, Heavy Weight Drill Pipe, Casing Scraper

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ZJS Type Jar Extensifler


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Specifications

ZJS type jar extensifier is a downhole fishing jar designed to increase jaring force to up jar. Therefore ,it must be run in conjunction with CSJ type super or YSJ type hydraulic up jar. It is to supply acceleration to the uper end of the jar during the free jarring stroke.
 
Type
Parameter
ZSJ114B
 
ZYSJ121B
 
ZSJ146B
 
ZSJ159B
ZSJ178B
 
ZSJ178B
 
O.D. (mm)
114
121
146
159
178
203
I.D. (mm)
38
38
51
57
57
71
Overlength after pull
3340
3340
4000
4500
4000
4010
Stroke(mm)
250
250
330
330
310
330
Tensile load (KN),downhole
800
900
1200
1500
1800
2200
Max.work torque   
4.9
7.8
15
 
19.6
23..5
Threads API
NC31
NC38
NC40
Nc50
NC50
65/8”REG
Sealing pressure
20
20
20
 
20
20

Service Process

Service Guarantee

  • Free Service Charge

    ECVV doesn't charge any service fee to Buyers for buying this product.

  • ECVV Supply

    ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.

  • Product Quality Commitment

    ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.

  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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