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Shanghai Tianhe Oil Engineering Co., Ltd.

China Manufacturer with main products: Drill Pipe, Drill Collar, Integral Blade Stabilizer, Drilling Jar, Kelly Valve, Kellys, Overshots, Releasing Spear

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Kelly Valve

FOB Price: 500.00 - 800.00 USD/Piece
Supply Ability: 100 Piece/Pieces per Month
Shipping: 35 Days
Payment Terms: L/C, T/T
In Stock

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Shanghai in China
Packaging Details: Metal Frame

Quick Details

  • Condition: New
  • Brand Name: Tianhe
  • Model Number: CS
  • After-sales Service Provided: Overseas service center available


Kelly valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve. The upper Kelly valve is connected between lower end of swivel and upper end of Kelly; the lower Kelly valve is connected between upper end of drill pipe and lower end of Kelly or connected between lower end of Kelly saver subs. The Kelly valve can be opened on or closed off by only turning the special operating wrench at 90° according to indicating direction. During drilling operation, the Kelly valve shall be connected at upper end and lower end of Kelly.


The sealing principle for Kelly valve is that the ball is positioned and provided with proceeding stress by the lower seat supported by spring load and a close seal between ball and ball seat is provided. During normal drilling operation, the hole is kept unblocked by turning the stem to be " on" position; In case of kick or blowout, turn the operating stem to be " off" position to close off the internal bore of drill string, the kick or blowout accident is avoided due to a high pressure sealing situation between ball and ball seat.


When ordering please specify:

  Upper or Lower type;

  Tool OD;

  Working Pressure: 5,000 / 10,000 / 15,000 PSI;

  Tool connection.

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

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  • 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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