valve ball and seat

  • Neles modular seat supported ball valve, series X Neles

    Neles series X modular ball valve, incorporates robust stem to ball connection in seat supported models. Application based seat selection assures valves are capable of delivering long lasting tightness. Valve series meets modern industry requirements concerning safety and emissions.

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  • Ball valve

    OverviewTypesMaterials of constructionSee also

    There are five general body styles of ball valves single body, three piece body, split body, top entry, and welded. The difference is based on how the pieces of the valveespecially the casing that contains the ball itselfare manufactured and assembled. The valve operation is the same in each case.
    In addition, there are different styles related to the bore of the ball mechanism itself. And depending on the working pressure, the ball valves are categorized as low pressure ball valves and high pressure ball valves. In most industries, the ball valves with working pressures higher than 3000 psi are con

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  • When To Use Metal Seat Valves Vs. Soft Seat Ball Valves

    Soft Seated Ball Valves. Soft seats are generally made of thermoplastic materials like PTFE. Theyre great for applications where chemical compatibility is important, and where the tightest seal is key. However, soft seats are not recommended for process fluids that are dirty, or abrasive. Soft seats can break down in these conditions, causing the valve to leak. Metal Seated Ball Valves

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  • Ball Valves

    Ball Valves Process Systems stocks a wide range of ball valves including 316 stainless steel, nickel plated brass, UPVC, 2 way, 3 way, v port, threaded, flanged and fire safe. All ball valves are available with pneumatic, electric and manual operation.

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  • Valve Ball Seats Ball Valve Balls

    For service with severe flashing, hydraulic shock, high temperature or abrasive media. Typically we hard face a stainless steel seat with Stellite then lap the ball to the seat for tight shut off. Depending on the valve and trim we can achieve temperatures in excess of 500176;C for metal seated ball valves.

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  • Metal (Stellite) seat inserts for valve, industrial metal

    Metal seat inserts construction consists only in a couple of metallic seat ring (without inserts) and the surface in contact with the ball is hardfaced with Copper alloy (for low pressure valve), Chromium stainless steel (for common high and medium pressure valve), Stellite alloy (for high temperature, pressure and high corrosion application), Nickel base alloy (for corrosive medium), Tungsten

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  • What is a ball check valve and where is it used? AVK

    A ball check valve functions by means of a ball that moves up and down inside the valve. The seat is machined to fit the ball, and the chamber is conically shaped to guide the ball into the seat to seal and stop a reverse flow. If the pump capacity is not sufficient it is possible to choose a lighter ball

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  • API V11 175 blank valve ball and seat

    API V11 175 blank valve ball and seat . Model Number YG6.YG8.YG13.YT30 Etc ; Material Tungsten carbide, titanium carbide ; Application widely used in oil drilling, deep sea drilling, oil pump valve ball, ball seat

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  • Ball Valves Seat Design

    Trunnion mounted ball valves with two bidirectional seats are designed for blocking the fluid in both downstream and upstream directions. Each seat is sealing in both directions, from the valve ends to the valve body cavity and from the body cavity to the valve ends. The difference in area (D=A B) times the line pressure creates a quot;piston effectquot; force which pushes the seat against the ball

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  • BALL VALVE SEAT Soutron Resources

    BALL VALVE SEAT PTFE Polytetrafluoroethylene resin PTFE seats possess high chemical resistance and excellent sealing performance HYPATITE 174; seats are made of modified PTFE. HYPATITE174; seats has an excellent resistance to creep or compression and abrasion service, featuring of high elasticity and resilience. HYPATITE174; seats also have good chemical resistance, so they can be used for as

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  • Single Seat Valves Matrix Process Solutions

    Unique Single Seat DN125 (5quot;) and DN150 (6quot;) valves are pneumatic seat valves in a sanitary and modular design offering a wide field of applications, for instance as a stop valve with two or three ports or as a change over valve with three to five ports. These valves complement the Unique Single Valve

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  • Applications Valve Seat Seal Materials

    BALL VALVE SEAT/SEAL SELECTION GUIDE STANDARD BALL VALVE SEAT SELECTIONS BALL VALVE SEAT GUIDE FOR STEAM USE Material Technical Description Typical Colour Approx. Torque Adder DELRIN/ POM This seat is very rigid and does not undergo cold flow. Delrin can withstand pressures of up to 6000 psi dependent on valve size and a temperature range of 57186;C to 82186;C.

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  • BALL VALVE SEAT Soutron Resources

    BALL VALVE SEAT PTFE Polytetrafluoroethylene resin PTFE seats possess high chemical resistance and excellent sealing performance HYPATITE 174; seats are made of modified PTFE. HYPATITE174; seats has an excellent resistance to creep or compression and abrasion service, featuring of high elasticity and resilience. HYPATITE174; seats also have good chemical resistance, so they can be used for as

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  • Double Piston Effect Ball Valve Callidus Process Solutions

    The primary seating is therefore on the upstream seat permitting trunnion mounted ball valves to be used for block and bleed service. A variation of this is the Double Piston valve in which the upstream seat works as a standard trunnion mounted seat, but the downstream seat can also be pulled on with pressure by pressure in the body cavity, this is often used in top entry welded inline

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  • Valve ball seats by needle rollers Issuu

    titanium valve balls or ceramic ball valves supplier of precision valve ball seats or hollow balls

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  • Learn about 6 Types of Ball Valve Floating, Trunnion

    Split Body Ball Valve. In this design, a valve body is divided into two or three body parts. A ball, seat rings, stem, and other internals set inside the larger body part and held together with smaller parts by bolting. For a split body, two pieces valve, refer floating ball valve image. Refer below image for split body three pieces type valve.

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  • Ball Valve an overview ScienceDirect Topics

    The ball valve designs discussed previously have floating balls, the ball being located by the seats. The trunnion mounted ball valve has two journal bearings to locate the ball within the body. Trunnion mounted valves are more costly than other designs because of the extra components and machining involved. Small low pressure valves, do not need the extra support of the trunnion bearings. The

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  • A Ball Valve Seat KITZ

    Ball Valve Seats 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 290 50 100150 MPa 200250300 The ball seats are used in bronze, brass and cast iron floating ball valves Ball valves are used in a wide range of applications. Various seat materials are available at KITZ to meet these applications. Cautions P T rating charts introduced in this literature show only ball seat ratings

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  • Functionality and seating technology for floating ball valves

    A floating ball valve is a ball valve with an unsupported ball other than the two seats it rests on so that the ball moves in the valve cavity to help seal off the line pressure The key to ball valve performance is the sealing design, regardless of whether the seats are made of metal, plastic or other material. Another important function of ball valve performance is the stem seal design.

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  • Ball Valve Seat Selection Guide Triad Process

    Triad offers a wide choice of soft seats and metal seated ball valves for a variety of industrial applications. Below is a general guide. When selecting seats, always consult the pressure / temperature charts and corrosion resistant guide or contact the factory for engineering help. Not all seats are available for use in all our valves. PTFE (P) Made from Teflon, this is the most common

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  • Valve Seat Ball Valve Balls Manufacturer

    Plastic Sealing Ball Valve Seat DesignEmbedded plastic plug in by the metal seat, the valve seat is fine finished, make sealing pair with sphere. The plug in is Made from thermoplastics which is pressed in valve seat by press. The unique design which changed the traditional construction of locking rolling mode and clamp mode make the plug in locked in groove. Then it reduces craft, ensuring

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  • Metal (Stellite) seat inserts for valve, industrial metal

    Metal seat inserts construction consists only in a couple of metallic seat ring (without inserts) and the surface in contact with the ball is hardfaced with Copper alloy (for low pressure valve), Chromium stainless steel (for common high and medium pressure valve), Stellite alloy (for high temperature, pressure and high corrosion application), Nickel base alloy (for corrosive medium), Tungsten

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  • PTFE/PFA/PEEK/PVDF/PCTFE Molded Ball Valve Seats DCW

    Ball Valve Seats Materials Selections. Material Name Compound % Main Properties. Color Color PTFE / Very low coefficient of friction and excellent chemical resistance. FDA approved White Glass Filled PTFE Up to 40% Improved ware resistance, compression strength, creep resistance, chemical resistance. Good performance in oxidising environment, good creep resistance. White cream Carbon

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  • PTFE/PFA/PEEK/PVDF/PCTFE Molded Ball Valve Seats DCW

    Ball Valve Seats Materials Selections. Material Name Compound % Main Properties. Color Color PTFE / Very low coefficient of friction and excellent chemical resistance. FDA approved White Glass Filled PTFE Up to 40% Improved ware resistance, compression strength, creep resistance, chemical resistance. Good performance in oxidising environment, good creep resistance. White cream Carbon

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  • Ball Valve How They Work Tameson

    The ball is supported and sealed by the ball valve seat (5) and their are o rings (2) around the valve stem. All are inside the valve housing (3). The ball has a bore through it, as seen in the sectional view in Figure 1. When the valve stem is turned a quarter turn the bore is either open to the flow allowing media to flow through or closed to prevent media flow. The valve's circuit function

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  • Valve ball seats by needle rollers Issuu

    titanium valve balls or ceramic ball valves supplier of precision valve ball seats or hollow balls

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  • What's the difference between metal seat valves and soft

    1/7/20190183;32;Almost all the industrial valves are metal seat and soft seat available. Both of them offers excellent sealing performance and have their unique and irreplaceable advantages, and inevitably, due to the shortcomings, costs, abrasion resistant performance, working conditions of different materials, metal seated valves and soft seated valves both have their markets and long lasting solutions for

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  • BALL VALVE SEAT MATERIALS AND APPLICATIONS

    Cavity filler seats are used primarily on sanitary ball valves with clamp ends. They are designed to reduce the possibility of contamination by entrapment of process fluids in the void normally found behind the ball between the valve body on standard valves. Cavity filled seats are ideal fro applications where cross contamination is a concern, such as paints and dyes or food product like

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  • A Ball Valve Seat KITZ

    Ball Valve Seats 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 290 50 100150 MPa 200250300 The ball seats are used in bronze, brass and cast iron floating ball valves Ball valves are used in a wide range of applications. Various seat materials are available at KITZ to meet these applications. Cautions P T rating charts introduced in this literature show only ball seat ratings

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  • Double Block and Bleed Ball Plug Valves Dual Trunnion

    Conventional single ball trunnion mounted ball valves have two energised generally bi directional seats. The body cavity can then be fitted with a drain valve at the body cavity drain point and this type of valve is then sold as a Double Block and Bleed Valve (DBB). Australian Pipeline Valve individually tests each valve to verify zero leakage at the drain point. Conventional single ball

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