27 visiting now: 14 China China flag 6 USA USA flag 2 Netherlands Netherlands flag 1 France France flag 1 Israel Israel flag 1 Philippines Philippines flag 1 Australia Australia flag 1 UK UK flag

Product Kelly Manual Valve - China

price: contact company for price

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


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


When ordering please specify:

Upper or Lower type;

Tool OD;

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

Tool connection.

Company Contact:

  • Phone: 00862131150073

  • Address: No.2999 Xinyang Road,Fengxian District, Shanghai, China

  • Email: Email

Published date: January 9, 2014 -

  • Business Description: Tianhe Oil Group is a comprehensive enterprise of equipment

    manufacturing and oilfield service providing. The company is specialized

    in innovation, manufacture and sales of drill and petroleum extraction

    tools, equipments and oil field services.

    Tianhe Oil Group is the council member of CPEIA (China Petroleum and Equipment Industry Association), rewarded as national level of Hi Tech enterprise. The company is a Chinese well known trademark enterprise. It has been certified to ISO, API, NS 1, and HSE management system.

    The company has developed a strong domestic sales network covering all oilfields of CNPC, SINOPEC and CNOOC. Currently, our products and equipments have been exported to 45 countries, overseas business has covered 80% of our company sales.

Related listings

  • Pipe Cleaning Device
    Pipe Cleaning Device
    Equipment - Hondar Machinery Sci-Tech Co., Ltd - China - May 16, 2016 - contact company for price

    after pipeline project, long pipe need to do the necessary cleaning. We supply the pipe cleaning device. the products are as following: straight type pipe pig; bowl type pipe pig; caliper pipe pig; brush type pipe pig; jet type pipe pig; magnatic pip...

  • Industrial Powder Storage Silo
    Industrial Powder Storage Silo
    Equipment - Flyer Steel Silo Engineering Co., Ltd. - China - May 11, 2016 - 100000.00 Dollar US$

    With good integral property and long service life, Flyer steel silo is used for storage of slag, mineral powder, fine powder and fly ash. The steel silo is constructed with special equipment when it was built. In the process of rolling, the ektexine ...

  • Wood Pallet Machine Uses Waste Woods Perfectly
    Wood Pallet Machine Uses Waste Woods Perfectly
    Equipment - Shanghai Pallet Machinery - China - April 18, 2016 - contact company for price

    Do you think that waste wood is useless? In most area, waste wood is just used as firewood. In some developed area, perhaps waste wood is used for making saw dust. Today, we will tell you that waste wood can be recycled for producing wood pallets. th...

Safe Trade Tips

  • Ask for business references and check them
  • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
  • Verify their business via their local Chamber of Commerce
  • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
  • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
  • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"