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Subscribe to this list via RSS Blog posts tagged in Ball Valves

Regulation of supply is a very crucial aspect in any form of transfer. The supply can be fluid in nature like water or oil and even gas. In our everyday life we need many different kind of supplies like the water and LPG gas and there is a need of a very effective supply chain system so it can reach to our houses without any fuss. Companies incorporate a chain of supply pipes for the supply of gas and fluid. These pipes can only be used as carrier as they cannot manage the process of transfer on their own.

Along with the pipeline valves are needed so that the supply can be controlled as per the demand of the user and the company. Valves are devices that can very effectively manage the flow and redirect the supply in a desired manner. These valves can easily close and open the passage of the supply as per the operator handling the supply chain. He can easily manage the supply with the help of these valves and can direct the flow to different locations as per his choice. The working of valves is very simple as they only work in dual manner i.e. opening and closing of the valves. Once the valves are open the fluid can flow easily at high rate from high pressure position to the low pressure one where the fluid is not present at that very particular moment. The other state of the valve is when it gets closed and in this condition it obstructs the passage of the supply and does not allow the flow of the fluid.

There are many different kinds of valves that are available in the market and all these valves serves an entire different purpose when it comes to their effective use. Some are used for farming and agricultural purposes while there are some that are designed with high tech material and are used in industrial purposes. Valves can be seen almost everywhere. It is present in the kitchen like the dish washer and can also be seen in the washers. Direct mount valves is another form of valves that are very common in the industries as it is loaded with many features and also available in a wide variety of options.

The user can choose from this huge pile of selection and select the one as per their needs and budget. Direct mount ball valves can easily be mounted directly and do not need installation of any effective tubing system along with the pipes. These valves comes in different forms like the 3-way valves and the 4-way solenoid valves. However the basic principle of working in these direct mount valves remain same with the slight difference in the way these valves handle the supply pressure. The amount of pressure these valves can manage can handle is measured in PSI.

Higher the PSI higher will be the pressure of the supply. Every organization need is different from the other and they can choose the one that meets their requirement.

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A valve is used to control flow of liquids and gases. And ball, gate and globe valves are used to control flow of liquids. These valves in all forms are used to create waterways, and it is therefore essential to understand the differences and their uses.

Ball Valves                                                   

Ball valve made of solid elements offers high durability, and have the ability to function perfectly even after long idle time. It has a sphere made of brass, stainless steel, or chrome plated brass, embedded inside the conduit. On the top of the sphere is a lever attached which can move in a quarter turn only. When the level lies parallel to the pipe, the sphere allows water to flow. When the lever is perpendicular to the pipes the solid sphere blocks the water flow. The water flow is controlled by moving the lever from 0 to 90 degree in terms with the pipe with whom it is attached.

On the flip side though you have the provision to make water flow partially through the pipes by keeping the lever in between 2 limits, but due to water pressure, water pipes might distort.

The advantage of this kind of valves is that you can easily and quickly open or close it. However, water hammers the sphere and the sides of the pipe all the time, except when it is fully open to channelize the water.

Globe Valve

Globe valve is wheel based valves which when turned on reduces the flow of water though a pipeline by a set of stationary ring seat in a spherical body. Globe valves contain a spherical area, separated into 2 halves by an opening that forms a seat. On this seat, a plug can be screwed, using the wheel that can control the flow of water or stop it altogether.
           
It is difficult to understand if a globe valve is open or close, especially if it is partially open. Furthermore, it cannot be operated single handedly, as in the case of ball valve.

Gate Valves

Gate valves are used to control the flow of liquid and it is generally operated by turning a wheel and the gate moves up and down. When the wheel is turned to bring the gate down, and it reaches the lowest position, it blocks the flow of water. When the wheel is operated to do the opposite, the gate is in the highest position, and the water can flow without any hindrance.

It is quite easy to realize which position the gate is by looking at the rising stems, which are part of the Gate Valves. If the stems are rising and is visible it means the Gate Valve is open and when the stems are not visible it means the Valve is closed.

Gate Valves stay in contact with the flowing water, and thus is highly susceptible to corrosion and subsequently becomes non-functional and finally breaks. As it is operated slowly the chances of water hammering is negligible. It should be used either in open or closed conditions, if partially kept it might get damaged by water pressure and vibration.

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Posted by on in Valve 101

b2ap3_thumbnail_3-way-stainless-steel-ball-valve-side-handle.pngBall valves are predominantly used to control the stream of high weight fluids and gas lines. This is on the grounds that they don't result in any drop in weight or limit liquid development when completely opened. They are chiefly utilized when the supply pipe has an internal breadth of 6 inches or less.

A ball valve is a port valve that opens to give water access and cuts off to close water. It is named for the ball inside the valve that pivots. They are utilized within numerous zones because of their simplicity of repair and capacity to withstand weight and temperature. Contingent upon what they are made of, ball valves can hold up to ten thousand pounds for every square inch and up to 200 degrees Celsius. They extend in size from a quarter-inch opening to a foot wide or bigger.

Design of a Ball Valve

Valtorc’s 3-way ball valves are made up of an external shell, a ball with a gap in it and a handle. These are the fundamental segments. To take a gander at the valve essentially, the ball inside the shell fittings up the valve opening. A handle joined to the ball can turn the ball from outside the valve shell. The ball has a gap through the center that will permit water to pass. Right when the handle is turned to the empty position the opening in the ball is facing the same heading as the valve shell. To close it, the handle is moved and the ball turns with the opening standing up to the sides of the valve divider.

Types of Ball Valve

There are few types of ball valves. The full port valve has an opening in the ball that has the same measurements as the pipe that it is appended to. This keeps water from being limited as it streams. The diminished port valve makes an opening in the ball that is more diminutive than the funnel. This makes less water stream. A trunnion valve has a pin securing the ball so it doesn't stick. This is for high speed stream. There are three- and four-path valves, too. With these the stream is changed by the position of the ball. The opening in the bundle of the valve is ordinarily molded like a T or L. When it is a T it can permit stream in two bearings immediately or one bearing with the other side shut. When it is a L shape it permits stream in standout heading at once.

Efficiency

A Valtorc ball valve can provide for you the ideal seal. You won't expect any spillages when the valve is completely shut. The other stunning thing about the ball valve is the way that it turns paying little heed to the weight from the supply pipe. This is a valve which won't lessen the weight of the liquid once it is completely opened. Ball vales have an extremely straightforward structure. They are additionally more modest and lighter contrasted with numerous different sorts of valves. Ball valves give exceptionally adaptable delicate seals which make it simple for one to work them. Ball valves give the most modest level of liquid safety contrasted with all different sorts of valves.

Tagged in: 3-Way Ball Valves FAQ
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Posted by on in Valve News

b2ap3_thumbnail_Country-of-Origin-Labels-US2-ba.gifThere are many benefits of picking an American valve company one of these are American valve is dedicated to providing dependable products and services of the highest standards. The American Valve brand has represented innovative research and products built with confidence and quality.

There are different featured items are accessible in American valve organizations.

Ball Valves: A ball valve is a valve with a round disk; it is the piece of the valve which controls the flow of water through it. The circle has an opening, or port, through the center so that when the port is in accordance with the ends of the valve, stream will happen. At the point when the valve is shut, the gap is perpendicular to the closures of the valve, and stream of water is blocked.

Valtorc offers varied range of Ball valves. These are Stainless Steel Ball Valves, Iron & Carbon Steel Ball Valves, PVC/CPVC Ball Valves, Brass Ball Valves, Sanitary Ball Valves, Kingston Ball Valves, Special Purpose Ball Valves are sturdier, less vulnerable to collecting form up and more enduring than a customary unprotected ball. This adds to a long arrangement of favorable circumstances over different sorts of valves.

Control Valves: Valves used to control conditions, for example, stream, weight, temperature, and fluid level by completely or somewhat opening or shutting because of indicators got from controllers that look at a set point to a methodology variable whose worth is given by sensors that screen changes in such conditions are Control Valves. Control Valve is additionally termed as the Final Control Element. We offer a full cluster of control valves guaranteed to meet ANSI/NSF Standard 61 and additionally California Proposition 65.

We begin with the finest materials accessible. Our crude materials are precisely observed to guarantee fitting synthetic creation. Each valve is tried for shutting snugness and usefulness to guarantee sheltered, trustworthy operation. Control valves from American Valve meet the vastest scope of code approbations in the business sector. Our valves are guaranteed to USA and universal models. Our valves are fabricated in the United States of America. The greater part of our valves and items are tried in our Georgia, USA based area before shipment.

Control valves are typically fitted with actuators and positioners. Pneumatically-activated globe valves and Diaphragm Valves are generally utilized for control purposes as a part of numerous businesses, despite the fact that quarter-turn sorts, for example, (changed) ball, entryway and butterfly valves are likewise utilized.

Control valves can additionally work with pressure driven actuators (otherwise called water powered pilots). These sorts of valves are otherwise called Automatic Control Valves. The pressure driven actuators will react to changes of weight or stream and will open/close the valve. Programmed Control Valves don't require an outside force source, implying that the liquid weight is sufficient to open and close the valve.

It is proven that American Valves contributing to vitality effectiveness and solace in modern and business structures over the United States.

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Posted by on in Valve 101

b2ap3_thumbnail_steel-ball-valves.pngAfter installation, it is important to take care of a ball valve and to ensure its proper maintenance. However, in many cases, even when you take great care of the valves to make sure that they function properly, still there might be cases wherein they need replacement.

This could be when the seals are broken or when some damage takes place in the valve. In fact, there can be several reasons for changing a ball valve. But what is important is to be aware of the procedure that is involved in its replacement.

Enumerated below are the few steps that can be followed to replace a ball valve in an easy manner:

  • Buying the new valve and other supplies: You have to begin with this step. It is necessary to have all the essential things that you would need to replace the ball valve, before you take the old valve out. Thus, buy the new valve along with the supplies that are required. Ascertain the type of pipe, whether it is made up of copper, PVC, etc. Depending upon the type of pipe, you will have to buy the other necessary supplies.
  • Turning off the water supply: The next step should be shutting off the water supply completely. Once this is done, you should then turn on the faucet, so that all the water that is sitting in the pipe comes out of the pipeline.
  • Taking the old valve out: For removing the old valve from the pipe, you can use a hacksaw. Ensure utmost caution while you cut the pipe with the hacksaw and take the valve out of the pipe carefully, without damaging anything.
  • Splicing the pipe & placing the new valve: After removing the valve, measure the opening to fit in the new valve and splice the new pipe with the old one. After this, put the new ball valve in place and close the pipe with the coupler.
  • Checking the new valve: Once all the above mentioned steps are followed, turn the water and the faucets on. Make sure that the valve is working fine and there is no leakage. If you detect that there is some leakage, then take the corrective action to fix it immediately.

In case, there is no leakage then turn off the water supply and seal the pipes back into the wall they are placed in. If necessary, you should repair the wall with a little paint and spackle.

By following these simple steps you can easily replace a ball valve. So, go ahead and buy your new ball valve and the necessary materials to replace the old valve. There are various manufacturers that offer great and durable valves. Contact them today and get the right products for your use, without any delay!

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Among the two most common types of rotary valves are the ball valves and butterfly valves. Both vales have a 90 degree turn and are mainly used to control the flow of gases and liquids. There are certain features which make the ball valves better than the butterfly valves.

For a start, a ball valve can give you the perfect seal. You will not expect any leakages when the valve is fully closed. The other amazing thing about the ball valve is the fact that it turns regardless of the pressure from the supply pipe. This is a valve which will not reduce the pressure of the fluid once it is fully opened.

Ball valves are mainly used to control the flow of high pressure liquids and gas lines. This is because they do not cause any drop in pressure or restrict fluid movement when fully opened. They are mainly used when the supply pipe has an inner diameter of 6 inches or less.

Unlike butterfly valves, ball vales are used to control gas flows. This can be attributed to the fact that they provide a reliable seal unlike the butterfly valves which do not give you that perfect seal.

Ball valves do not present any trouble turning in high pressure applications. Additionally, when ball vales are used in high pressure applications, a pressure balancing scheme is not required. The same cannot be said regarding the butterfly valves.

Ball vales have a very simple structure. They are also smaller and lighter compared to many other types of valves. Ball valves give very flexible soft seals which make it very easy for one to operate them.  Ball valves give the smallest level of fluid resistance compared to all other types of valves.

You can use the valve for many years without experiencing any loss in form of leakages. This basically means that the valve is reliable and cost effective in the long term. This is the kind of valve that can be engineered to stand extremely high pressure. In fact, you will realize that high pressure systems usually have a ball valve inside them.

This allows the valve to turn the system on and shut it off as required. The ball valve can have a number of ports in it. It can allow a number of porting combinations. If you are thinking of buying the ball valve, consider these advantages prior to making your purchase.

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Posted by on in Valve News

b2ap3_thumbnail_ball-valve-internals.jpgWhat is a ball valve? It's a question new customers often ask us at Valtorc, so let's look into this to answer the question and explain what a ball valve is

A ball valve is described as a mechanical device that directs, guides and modulates the flow of various types of liquids by way of an opening of a ball which has an opening in the middle. The opening is referred to as the port. By turning the handle on the ball valve, this manually opens/closes the port which controls the pressure from the flow of the liquid. Durability and “perfect” shutdown/shutoff are what makes the ball valve advantageous over other type of valves.

Valves are found in our everyday living and may go unnoticed. For example, there are plumbing valves which are at our sinks in our spigots. There are valves inside our washing machines, dishwashers, gas fireplaces, outside water spigots, refrigerators and more. Various types of industries utilize valves for their productions. Such industries include electronics, power, automotive, printing, plastics, textiles, metal, medical, chemical and food, to name a few. The industries that utilize ball valves typically have a need for supporting high pressure and temps exceeding 480 degrees. Ball valves are simplistic to operate and repairs are made easily without being removed from their pipeline.

Being made of steel, brass, iron, bronze or PVC, ball valves can range in sizes from .2 to 11.81 inches. More complex control systems using valves that need to regulate flow through a pipe will need an actuator. The actuator controls the valve pneumatically or is motor-operated and keeps it positioned appropriately so that the flow of the liquid is precise to the changing pressures and flow levels.

The basic types of ball valves include Full Port, Reduced Port, V-port, Multi-port, Standard Port and Cavity Filler ball valve. There are 3-way and 4-way ball valves. Depending on the application would determine the type of ball valve being used. The specifications to be considered for determining the appropriate ball valve would be the temperatures and pressure, number of ports, valve size, type of body material, end connectors and configurations.

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Posted by on in Valve 101

API SPEC 6D
Specification for Pipeline Valves. API Specification 6D is an adoption of ISO 14313: 1999, Petroleum and Natural Gas Industries-Pipeline Transportation Systems-Pipeline Valves. This International Standard specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems.

API 600
Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas Industries - Modified National Adoption of ISO 10434:1998.

API 599
Metal Plug Valves - Flanged, Threaded and Welding Ends. A purchase specification that covers requirements for metal plug valves with flanged or butt-welding ends, and ductile iron plug valves with flanged ends, in sizes NPS 1 through NPS 24, which correspond to nominal pipe sizes in ASME B36.10M. Valve bodies conforming to ASME B16.34 may have flanged end and one butt-welding end. It also covers both lubricated and nonlubricated valves that have two-way coaxial ports, and includes requirements for valves fitted with internal body, plug, or port linings or applied hard facings on the body, body ports, plug, or plug port.

API 602
Compact Steel Gate Valves - Flanged, Threaded, Welding, and Extended-Body Ends. The standard covers threaded-end, socket-welding-end, butt-welding-end, and flanged-end compact carbon steel gate valves in sizes NPS4 and smaller.

API 603
Corrosion-Resistant, Bolted Bonnet Gate Valves - Flanged and Butt-Welding Ends. The standard covers corrosion-resistant bolted bonnet gate valves with flanged or butt-weld ends in sizes NPS 1/2 through 24, corresponding to nominal pipe sizes in ASME B36.10M, and Classes 150, 300, and, 600, as specified in ASME B16.34.

API 609
Butterfly Valves: Double Flanged, Lug- and Wafer-Type. The standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for gray iron, ductile iron, bronze, steel, nickel-base alloy, or special alloy butterfly valves that provide tight shutoff in the closed position and are suitable for flow regulation.

API STD 594

Check Valves: Flanged, Lug, Wafer and Butt-welding. API Standard 594 covers design, material, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for two types of check valves.

API 598
Valve Inspection and Testing. The standard covers inspection, supplementary examination, and pressure test requirements for both resilient-seated and metal-to-metal seated gate valve, globe valve, plug valve, ball valve, check valve, and butterfly valves. Pertains to inspection by the purchaser and to any supplementary examinations the purchaser may require at the valve manufacturer's plant.

API 607
Fire Test for Soft-Seated Quarter Turn Valves. The standard covers the requirements for testing and evaluating the performance of straightway, soft-seated quarter-turn valves when the valves are exposed to certain fire conditions defined in this standard. The procedures described in this standard apply to all classes and sizes of such valves that are made of materials listed in ASME B16.34.

API 6FA
Specification for Fire Test for Valves. The standard covers the requirements for testing and evaluating the performance of API Spec 6A and Spec 6D valves when exposed to specifically defined fire conditions.

ANSI/API 608
Metal Ball Valves - Flanged and Butt-Welding Ends. The standard covers Class 150 and Class 300 metal ball valves that have either butt-welding or flanged ends and are for use in on-off service.

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There are four general body styles of ball valves: single body, split body, top entry, and welded. There are four general types of ball valves: full port, standard port, reduced port, and v port.

A full port ball valve has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted, but the valve is larger.

A standard port ball valve is usually less expensive, but has a smaller ball and a correspondingly smaller port. Flow through this valve is one pipe size smaller than the valve's pipe size resulting in slightly restricted flow.  In reduced port ball valves, flow through the valve is one pipe sizes smaller than the valve's pipe size resulting in restricted flow.

A v port ball valve has either a 'v' shaped ball or a 'v' shaped seat. This allows the orifice to be opened and closed in a more controlled manner with a closer to linear flow characteristic. When the valve is in the closed position and opening is commenced the small end of the 'v' is opened first allowing stable flow control during this stage. This type of design requires a generally more robust construction due to higher velocities of the fluids, which would quickly damage a standard valve.

A trunnion ball valve has a mechanical means of anchoring the ball at the top and the bottom, this design is usually applied on larger and higher pressure valves(say 4 inch and above 600 psi and above)

Manually operated ball valves can be closed quickly and thus there is a danger of water hammer. Some ball valves are equipped with an actuator that may be pneumatically or motor (electric) operated. These valves can be used either for on/off or flow control. A pneumatic flow control valve is also equipped with a positioner which transforms the control signal into actuator position and valve opening accordingly.

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