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Topic: Ball valve

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	Ball valve - Wikipedia, the free encyclopedia
		A ball valve (like the butterfly valve, one of a family of valves called quarter turn valves) is a valve that opens by turning a handle attached to a ball inside the valve.
		A trunnion ball valve has a mechanical means of anchoring the ball at the top and the bottom.
		Some ball valves are equipped with an actuator that may be pneumatically or motor (electric) operated.
	en.wikipedia.org /wiki/Ball_valve (448 words)

	Ball Valve Controllers
		Ball valves are the most commonly used kind of valve for controlling propellant flow and feed pressure to the propellant tanks.
		Between the ports is a channel containing a sphere (the "ball") with a hole through its center and suspended by seating material that holds the ball in place and seals the volume outside the ball from fluid flow around it.
		The diameter of the ball channel is the specified diameter of the ball valve.
	www.innovatia.com /Design_Center/Ball_Valve_Controllers.htm (3746 words)

	Motor Actuated Valve Application Guide Ball Valves (Site not responding. Last check: 2007-11-02)
		On valves 1/2"to 6",the globe valve is the most common type, although a special ball valve assembly designed for steam has better close-off, less pressure drop, and a much higher flow rate than a globe valve of the same size.
		In a new construction or rework situation, a three-way ball valve placed upstream of the coil that diverts flow through the coil or bypasses the coil is a very cost effective alternative to a mixing globe valve placed on the downstream side of the coil.
		When a three-way ball valve is piped as a mixing valve instead of a diverting valve (which it was designed to be) the flow is in the opposite direction of the valve's intended design.
	www.clarksol.com /html/prodspecsMotorActValve.htm (2579 words)

	Ball Valve - Search Results - ninemsn Encarta (Site not responding. Last check: 2007-11-02)
		Ball Valve, valve that works by the action of external pressure which raises a ball and thereby opens a hole.
		Valve, a mechanical device used to control the flow of a gas or liquid, or—in the case of a check valve—to ensure that flow travels in only one...
		- valve opened and closed by ball: a valve in which a ball moves in and out of a spherical socket in response to changes in fluid or mechanical pressure
	au.encarta.msn.com /Ball_Valve.html (144 words)

	Ball Valves - Keidel Bath, Plumbing, Kitchens - Cincinnati, OH
		As the valve handle is turned to open the valve, the ball rotates to a point where part or all of the hole through the ball is in line with the valve body inlet and outlet, allowing fluid to flow through the valve.
		The ball in most water valves is made of stainless steel, and it rotates in a neoprene liner for smooth operation.
		In addition to those shown, there are three-way ball valves that are used to supply fluid from a single source to one component or the other in a two-component system.
	www.keidel.com /mech/pvf/valve-ball.htm (298 words)

	Ball Valves
		ball valves are of bolted construction which simplifies field service and maintenance.
		All the components of the side entry ball valves and all the internals of the top entry ball valves are made of forgings.
		The DynaSeal 370E4 top entry ball valve designed in accordance with ANSI B16.34 for manifolds and other applications where removing valves is difficult or prohibitively expensive.
	www.bjrvalveinc.com /pages/ballvalves.html (322 words)

	Valve - Wikipedia, the free encyclopedia
		Although valves are sometimes made connected or integral with some other object like a vessel, many valves are manufactured initially as a separate item to be connected afterwards to some other object such as a pipe, tube, or pump head on at least one of the valve ports either by a manufacturer or the user.
		Valve sizes are commonly given by the outer diameter of tubing or pipng the ports connect to; for example, a 1-inch valve is sized to connect to 1-inch outer diameter tubing.
		However, valves may eventually wear out from use and develop a leak, either between the inside and outside of the valve or, when the valve is shut to stop flow, between the disc and the seat.
	en.wikipedia.org /wiki/Valve (2720 words)

	Ball valve manufacturers of stainless steel, steam and high pressure valves, as well as stainless steel ball valves. ... (Site not responding. Last check: 2007-11-02)
		Ball valve manufacturers of stainless steel, steam and high pressure valves, as well as stainless steel ball valves.
		PBM is a specialty ball valve manufacturer of industrial ball valves, steam valves, high pressure valves and special application ball valves.
		Stainless Valve is a professional designer and manufacturer of a wide range of ball valves like stainless steel valves, steam valves and actuated valves.
	www.ball-valves.net.cob-web.org:8888 (270 words)

	Ball-Valve Solutions
		Ball valves are the backbone of fluid control for industrial and municipal processing facilities worldwide.
		Operational and maintenance problems arise when the integrity of key valve components [valve stem, packing, seats, seals, bearings] or lubrication is compromised, or when exposed surfaces that rub against solids or scale build-up increase the torque required to actuate.
		offers proven, rugged alternatives to conventional stainless steel, alloy and ceramic ball valves with designs that eliminate the use of those components and the impinging surfaces that most often are the cause of failure.
	www.ballvalvesolutions.com (311 words)

	Replacing A Compressor Drain With A Ball Valve
		This made draining the water from the tank a simple matter of turning the ball valve a quarter turn and waiting a few seconds for the water to blow out.
		With the 1x4 spacer, the drain valve is not in danger of being damaged when I move the compressor.
		The normal drain valves are so cumbersome to open that they can't be opened quickly, which I suppose increases their safety.
	www.hammerzone.com /archives/workshop/compressor/drain/ball_valve.htm (779 words)

	ball valve,brass ball valve manufacturer and ball valve,brass ball valve supplier--China Taizhou Double-Lin Valves ...
		Taizhou Double-Lin Valves Manufactring co., Ltd. is located in the southeast Zhejiang.
		The brass ball valve (LL1001-LL1054)be used for house appliance and industry appliance, the size range is 1/4”-4”.
		such as we have brass or zinc for body, brass or iron stem, brass or iron for ball, aluminum, stainless steel, iron for handle.
	www.valve-exporter.com /ball_valve.htm (108 words)

	ball valve,brass ball valve,ball check valve manufacturer and ball valves,brass ball valves,ball check valves ...
		As a professional ball valves, brass ball valves, ball check valves manufacturer, exporter, supplier and factory in China.--Taizhou Double-Lin Valves Manufactring co., Ltd. is located in the southeast Zhejiang.
		We possess a lot of elites with abundant managing and producing experiences and specialized in producing experiences and specialized in producing ball valve, brass ball valve, ball check valve, various brass ball valve, check valve, floor drain and various kinds of copper fitting etc.
		we also welcome to process all kinds of special valve, ball valves, brass ball valves, ball check valves and spare parts of brass against the sample and drawing be sent by customer both home and abroad.
	www.valve-exporter.com /n_ball_valve.htm (276 words)

	Check valve - Wikipedia, the free encyclopedia
		Heart valves are essentially inlet and outlet check valves for the heart ventricles, since the ventricles act as a pump.
		Ball check valves should not be confused with ball valves, which are different types of valves in which a ball acts as a controllable rotor to stop or direct flow.
		A swing check valve is a check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow.
	en.wikipedia.org /wiki/Check_valve (1131 words)

	Ball Valve Manufacturer,Needle Valve Exporter,Check Valve Manufacturer,Gate Valve Exporter India
		Ball valves are quarter-turn, straight through flow valves that have a round closure element with matching rounded seats that permit uniform sealing stress.
		Ball valves are used in situations where tight shut-off is required.
		Some valve seats are composed of single molded forms, while other seats with higher-pressure ratings often incorporate a trunnion design where each face of the ball is separately sealed.
	kamleshengg.exportersindia.com (307 words)

	Rotary Valves and Actuators (Site not responding. Last check: 2007-11-02)
		This valve is for use in heavy slurry or corrosive applications.
		The V250 is a flanged, reduced bore ball valve in 4- through 24-inch sizes and compatible with ANSI Class 600 or 900 for heavy duty (high temp or tight shutoff) throttling or on/off applications.
		The V260 is a flanged full ball valve in 8- through 16-inch sizes and compatible with ANSI Class 300 or 600 for high capacity process applications.
	www.emersonprocess.com /fisher/products/tour/rotaryvalves.html (967 words)

	Valve engineering - Trunion Mounted ball Valve
		First, all valves need body bleed; the trunion mounted ball valves aren't doulbe block because rotating the ball (close-open or open-close) the pressure is retained only by the body.
		A body bleed on a floating ball valve would never blow down since the ball has "floated" to the downstream seat and is slightly off the upstream seat (keeping pressure on the body cavity so it wouldn't blow down if it had a body bleed).
		Venting the ball DOWNSTREAM in a trunnion valve, notching or removing the downstream seat, or providing a cavity vent, are all ways to ensure that the cavity cannot overpressure due to expansion and is depressurized for disassembly.
	www.eng-tips.com /viewthread.cfm?qid=134074&page=1 (1665 words)

	Brass Ball Valve Failure (Site not responding. Last check: 2007-11-02)
		The failure occurred when the body of the valve, which was of two-piece construction, came apart, resulting in the release of high temperature water and steam from the boiler.
		Boiler blow-off valves and the piping that joins the valves and other fittings to the boiler must be designed and constructed in compliance with the requirements of the ASME B31.1 Power Piping Code for boiler external piping.
		It is important to note that markings on valves and other fittings may not provide complete information to allow a user to determine whether or not these fittings are suitable for a given application, such as boiler external piping.
	www.dol.state.nc.us /boiler/alerts/alert_valve.htm (409 words)

	BALL VALVE
		A wide range of full and reduced bore Ball valves for applications in the chemical, pharma, petrochemical and allied process industries.
		Valves available in flanged, wafer and screw/welded, metal or soft seated seals.
		Butterfly valves are available in a verity of materials applications in the water, process and marine, industries range includes resilient seated and high performance chemical and corrosive duties we offers a range of valves with specially designed for phrma, food and beverages, and fine chemicals
	www.amtechvalves.com /files/ball.htm (172 words)

	Ball Valve (via CobWeb/3.1 planetlab1.isi.jhu.edu) (Site not responding. Last check: 2007-11-02)
		ball valves are the three different types of rotary valves used in industrial plants.
		Most ball valves offer rugged construction providing for a long service life, and a comparably low cost.
		Additionally, the design of the regulating element allows the valve to function without the complications of side loads, typical of butterfly or globe valves, and the valve design permits inspection and repair of seats and seals without removing the valves’ body from the line.
	www.cgvalve.cn.cob-web.org:8888 /ball-valve.html (186 words)

	Ball Valve :: Blocks (SimHydraulics)
		The flow rate through the valve is proportional to the valve opening and to the pressure differential across the valve.
		The flow passage area is assumed to be equal to the side surface of the frustum of the cone located between the ball center and the orifice edge.
		The diameter of the orifice of the valve.
	www.mathworks.com /access/helpdesk/help/toolbox/physmod/hydro/ref/ballvalve.html (410 words)

	China Ball Valve Products, Catalog, Samples - Alibaba Search for Ball Valve products
		The series G trunnion-mounted, polymeric-sealed ball valves are produced under authorization by Neles-Jamesbury, USA in Shanghai, China for application in all oil and gas services.
		Valves including cast and forged steel trunnion ball valve, which used in WOG and other industrial areas.
		Ball valve is fixed onto pipes whose nominal pressure is ≤125 lbs and whose fluid includes steam, water and oil.
	chinasuppliers.alibaba.com /search/china_products/Ball_Valve.html (868 words)

	Ball Valve (Site not responding. Last check: 2007-11-02)
		Another type of ball valve we offer is the safety exhaust/energy lockout ball valve.
		The exhaust port of this ball valve automatically and continuously bleeds down compressed air trapped between the valve and the machine when the ball valve is closed.
		This ball valve is rated for 200 psi operating pressure.
	www.grainger.com /production/info/ball-valve.htm (348 words)

	Ball Valve Extractor (Site not responding. Last check: 2007-11-02)
		Ball valves are commonly removed through the use of specialized clamp-on tools, pliers, or a bar to pry the valves loose.
		Subsequent use of the surface-damaged valves can accelerate degradation of the sealing gaskets, thereby increasing maintenance and shortening replacement intervals.
		Ball valves are used extensively in industry to control and regulate the flow of fluid through pipelines.
	www.srs.gov /general/busiops/tech-transfer/ball-valve.htm (160 words)

	Ball Valve- VALAND Industrial Corporation
		VALAND Industrial Corporation has been one of the prominent manufacturers of ball valves, with the capability to design and produce advanced flow control products that meet market demands since its inception in 1992.
		Certified with ISO 9001 and CE, VALAND is dedicated to bringing the market with brand-new valves in refreshing designs to solve any problem about flow control to the point.
		The product incorporate ball valves, flanged ball valves, gate valves, globe valves, swing check valves, piston check valves, Y-strainers, actuators and automation accessories in application to both commercial and industrial purposes.
	www.ball-valve-manufacturer.com (112 words)

	APV \| Products \| Double-Seat Ball Valve (Site not responding. Last check: 2007-11-02)
		Double seat ball valves DELTA DKR are proving their worth day by day in the fields of brewing, drinks technology, dairies and the food industry as well as in chemistry and pharmacology - world wide!
		The valve can be supplied with feedback signal indication with either proximity or micro switches, fitted in an optimal control unit or directly into the valve actuator yoke.
		The valve is pressure-resistant in open or closed position up to a pipe line pressure of 100 bars.
	www.apv.com /us/eng/products/valves/doubleseatball (385 words)

	Valve Balls - Find Spherical Grinding Services, Valve Balls, Chrome Ball Bearings And Precision Bearings At DK Machine
		DK Machine, manufacturers of valve balls and ball bearings, provides spherical grinding services for many industries including military, aerospace, pulp and paper, petroleum and chemical.
		DK Machine is a ball bearing manufacturer also producing precision valve balls for severe duty, high pressure, high tolerance applications.
		To accompany our valve balls, DK Machine also produces accompanying valve ball components such as valve seats, valve stems, and butterfly stems.
	www.dkmachine.com (200 words)

	The Ball valve instructions with plastic valves and proportioning valve (via CobWeb/3.1 planetlab1.isi.jhu.edu) (Site not responding. Last check: 2007-11-02)
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	ball-valve-instructions.khhdl.com.cob-web.org:8888 (942 words)

	Inline Industries: What's New
		The 337C series instrumentation ball valve incorporates several innovative design features for improved process performance.
		The valve's uniform bore diameter improves flow characteristics and eliminates pooling of potential contaminants.
		The 337T Series tank bottom ball valve is designed to meet your vessel requirements.
	www.ballvalve.com /whatsnew.htm (116 words)

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