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Carbon Steel Globe Valve

Categories Globe Valve
Brand Name: KATA
Certification: API-6D,API-SPEC-Q1,ISO 9001-2008,ISO-TS-29001,CE-PED,AIP 607 Fire safe certificate
Place of Origin: SHANGHAI,CHINA
MOQ: 1 piece
Supply Ability: 5000pieces per month
Delivery Time: 5~35days
Packaging Details: by wooden case
Pressure rating: Class 150~ Class 600
Material: WCB WCA WCC WC6 WC9 C5 C12 LCB LCC CF8 CF8M CF8 CF3 CF3M CN7M CF8C
Design & Manufacturing Standard: ASME B16.34,
Face to Face: ASME B16.10 EN558(DIN 3202)
Flanged Dimension: ASME B16.5 (DIN 2510)
Butt Weld Dimension: ASME B16.25
Pressure Temperature: ASME B16.34
Test and Inspection: API 598,
Operation Methed: Manual,worm Gear,Electric Actuator,Pneumatic Actuator,Hydraulic Actuator
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    Carbon Steel Globe Valve

    Carbon Steel WCB Globe Manual Valve with RF Flanged Connection


    Standards


    Design and ManufactureCast steel globe valve to BS 1873 and ASME B16.34;Forged steel globe valve to API 602.
    Inspection and TestAPI 598
    End flange dimensionASME B16.5
    BW end dimensionASME B16.25
    Socket-weld dimentionASME B16.11
    Face to Face and end to endASME B16.10
    Pressure temperture ratingsASME B16.34

    A globe valve, different from ball valve, is a type of valve used for regulating flow in a pipeline, consisting of a movable disk-type element and a stationary ring seat in a generally spherical body.

    Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle . This has an opening that forms a seat onto which a movable plug can be screwed in to close (or shut) the valve. The plug is also called a disc or disk. In globe valves, the plug is connected to a stem which is operated by screw action using a handwheel in manual valves. Typically, automated globe valves use smooth stems rather than threaded and are opened and closed by an actuator assembly.


    Although globe valves in the past had the spherical bodies which gave them their name, many modern globe valves do not have much of a spherical shape. However, the term globe valve is still often used for valves that have such an internal mechanism. In plumbing , valves with such a mechanism are also often called stop valves since they don't have the global appearance, but the term stop valve may refer to valves which are used to stop flow even when they have other mechanisms or designs.

    Globe valves are used for applications requiring throttling and frequent operation. For example, globe valves or valves with a similar mechanism may be used as sampling valves, which are normally when liquid samples are being taken. Since the baffle restricts flow, they are not recommended where full, unobstructed flow is required.

    Globe valves are always reverse seated.


    Carbon steel globe valve. Valves and are generally made of plastic or steel, the latter being the most widely used in chemical and petrochemical applications. Steel grades range from the most common type, namely carbon steel, with standard stainless steel being the second most common. Stainless steel alloys, which include nickel or copper are used in applications that require higher corrosion or heat resistance. In such cases, the most commonly used valve configurations -- ball valves, gate valves, check valves, globe valves and butterfly valves -- are often forged or cast as duplex valves, super duplex valves, alloy 20 valves, monel valves, inconel valves, incoloy valves and 254 SMO valves (6Mo valves). Titanium valves are also used in some highly corrosive applications. Titanium is not a stainless steel alloy.


    Body

    The body is the main pressure containing structure of the valve and the most easily identified as it forms the mass of the valve. It contains all of the valve's internal parts that will come in contact with the substance being controlled by the valve. The bonnet is connected to the body and provides the containment of the fluid,gas, or slurry that is being controlled.

    Globe valves are typically two-port valves, although three port valves are also produced mostly in straight-flow configuration. Ports are openings in the body for fluid flowing in or out. The two ports may be oriented straight across from each other or anywhere on the body,or oriented at an angle (such as a 90°).Globe valves with ports at such an angle are called angle globe valves. Globe valves are mainly used for corrosive or high viscous fluids which solidify at room temperature. This is because straight valves are designed so that the outlet pipe is in line with the inlet pipe and the fluid has a good chance of staying there in the case of horizontal piping. In the case of angle valves, the outlet pipe is directed towards the bottom. This allows the fluid to drain off. In turn, this prevents clogging and/or corrosion of the valve components over a period of time. A globe valve can also have a body in the shape of a "Y". This will allow the construction of the valve to be straight at the bottom as opposed to the conventional pot type construction (to arrange bottom seat) in case of other valves. This will again allow the fluid to pass through without difficulty and minimizes fluid clogging/corrosion in the long term.


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