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  • Float Valve Model F And G - China

    price: contact company for price

    Float (check) valve is usually installed in float subs (long

    subs bored out for a specific float) and prevent fluids from

    backing up in your drill string while adding/removing rods.

    The type available of float valve as below:

    Model F (plunger valve):Instantaneous shut off against high

    or low pressure, assuring continuous control of fluid flow

    during drilling.

    Model FC (Automatic Fill valve) Automatic feature allows

    drill pipe to fill from the bottom, removing the mess,

    hazards, and lost time from filing. When running in the

    hole, automatic fill feature eliminates the ‘ram effect’

    preventing the down hole pressure surges that can cause

    formation damage.

    Model G (Full open valve, flapper type):When circulation

    stops, flapper closes instantly to prevent cuttings from

    entering drill string and plugging bit. Valve opens when the

    first joint is raised out of hole assuring the first joints

    drain and are not pulled wet. Saves mud and avoids safety

    hazard and downtime.

    Model GA (Differential Pressure Monitoring Valve):Hardened

    1/4in. diameter tungsten carbide orifice bean insert in

    flapper to provide automatic partial filling of drill pipe

    during running in.

    Model GC (Automatic Fill Flapper Valve)Uses low carbon steel

    “automatic fill” key assembly that allows pipe to fill

    from bottom.

    Model GCA (Automatic Fill with differential pressure

    monitoring valve)Incorporate both GC and GA

    Model GS (non-ported flapper) and GAS (ported flapper)For

    high flow and erosion resistance,

    made of alloy steel and unique flapper relief to reduce

    flapper spring and pin wear. Option to have tungsten carbide

    coating on flapper face.

    Company Contact:

    • Phone: 8613614631909

    • Address: Dongxu 2st, No.5, Aimin Dis, Mudanjiang , China

    • Email: Email

    Published date: February 10, 2014 -

    • Business Description: Mudanjiang Dongxu Machinery Co.,Ltd has been honored with API spec 7 1

      certificate by America Petroleum Institute. Our factory covers an area

      of 20000square meters with a very strong team of technicians and

      researchers, possesses reliable production lines and advanced


      Our products: drilling tools,fishing tools,coring tools, diamond core bit, milling tools and so on. Our team will manufacture from existing designs or collaborate with the customer to design and manufacture to their specifications.

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