The ball valve design and manufacturing due to the application of computer-aided design (CAD) and computer-aided manufacturing (CAM) and flexible manufacturing system (FMS) in the valve industry, so that the ball valve design and manufacturing to a new level. Not only overhaul the valve design and calculation methods to reduce the repeatability of the conventional design of heavy professional and technical personnel, technical staff have more energy to be used to improve, improve product performance and new product development, shorten the new product development cycle and comprehens...
Ball valve sealing the main valve seat ring material is polytetrafluoroethylene (PTFE), it is almost all chemical substances are inert, and the friction coefficient is small, stable performance, easy to aging, temperature rangeswide and seal with excellent performance characteristics. The physical properties of PTFE, including the high expansion coefficient, the sensitivity of the cold and poor thermal conductivity, required seating design must focus on these characteristics. Seat sealing plastic materials including PTFE filled, nylon and many other materials. However, when the se...
Globe valves are named for their exterior shape, which is round and globular, and not in accordance with any characteristic of the internal structure of the valve itself, such as is the case with gate valves or ball valves. Internally, globe valves most often consist of a shaped plug or disc that mates with a valve seat according to a carefully defined mathematical relationship of opening percentage to flow percentage. This provides the flow characteristics best suited to the flow, level, or pressure control they are used for.
Quick opening valve characteristi...
Wafer Check Valve are useful in several different types of devices. They stop flooding in water-related devices, such as sump pumps and water heaters. They also protect equipment that can be harmed by the reverse flow of material, such as control valves, strainers, and flow meters. In addition, check valves can stop material from constantly flowing backwards when a device is off, which can save power and protect the parts of the device.
1 Turn off and disconnect the power source to the pump before attempting to do anything with it to avoid electrical shock....
Top Entry Ball Valve and the more cheaply made gate valves are designed to shut off the water supply to a location, such as an irrigation system, or a device, like a water heater or sink. Most in-line valves inside a home are typically gate valves, but they may rust out quicker. So, if you need to change a defective gate valve, go with the more durable ball valve. The ball valve consists of a handle on a shaft attached to a metal ball with a hole in it. When the handle is turned in the water flow direction, the hole is covered up, preventing the flow of water through the v...
Forged Steel Gate Valve control the flow of liquids. Unlike other valves, gate valves are either all the way open or all the way closed. They are often used as the main control valve --- such as the valve controlling the water coming into a house. Sometimes these valves require special wrenches and often these wrenches are called keys. This is partially because companies who own the valves do not want unauthorized people to open or close the valves.
1 Shut off the water before the gate valve by closing a valve upstream of it. You may have to close the main...
A ball valve has a spherical disc within the component that controls the flow through the valve. In a Cryogenic Ball Valve, the inner disc, or ball, contains a hole. When the hole is lined up parallel with the valve ends, the ball valve is open and fluids can flow through the valve. When the hole is perpendicular to the valve ends, the ball valve is closed and the flow is stopped. Ball valves are common to many heavy-duty projects because they are extremely durable. Ball valves are also known for their excellent sealing capabilities. Ba...
Ball valves are used in many plumbing applications, including on a pool's filler tank and on a water, gas and steam line. When a Floating Ball Valve becomes dirty, it may need to be cleaned or polished. A dirty ball valve can start to leak over time, even when the valve has been closed properly.
Design Requirements for the Ball
The spherical ball can be metal, plastic or ceramic. Metal balls must be polished to a high sheen to allow for smooth transition between open and closed positions with the seat. The ball edge must have blended curvature to prevent...
A Tilting Disc Check Valve, clack valve, non-return valve or one-way valve is a mechanical device, a valve, which normally allows fluid (liquid or gas) to flow through it in only one direction.
These valves are often designed for safety reasons, to prevent backflow and to ensure that someone operating a system knows which direction fluids and gases are flowing in. Check valves can also be used for tasks like creating leak tight seals, which can be an important safety or convenience future. They are also used for the routine task of directing fluids or gas...
Forged Steel Gate Valve
Gate valves are so named because they close off the flow of water through a pipe just as gates in fences prevent passage from one side to the other. Gate valves have a wedge-shaped internal plunger that is raised and lowered into a housing, properly called a “valve bonnet,” by the twisting of a stem. This design ensures that, when fully open, the valves have the same bore as the pipe they interrupt; they do not constrict flow at all. Gate valves typically have a round handle at the end of the stem that looks like a small boat he...
A Forged Steel Gate Valve consists of an actuator---such as a lever, a hand wheel or an electric motor---a housing, which holds the valve mechanism, and a gate---a rectangular or circular piece of metal that acts like the gate on a fence. When the gate is raised, liquids or gases can pass through the gate. When the gate is closed, the flow stops.
The best-known example of a gate valve is a household faucet: when you turn the handle, you raise or lower the gate and the water flows or stops.
This is classified separately according to its wedges and its stem. ...
A Flanged Globe Valve is formed by a baffle that splits the interior of the pipe, usually parallel to the length of the pipe. The baffle contains an opening that is sealed by means of a disc or flat plug being pushed down into the opening, or seat, perpendicular to the pipe, to stop the flow through the pipe. A structure called a bonnet outside the pipe holds a stem that is connected to the disc. A hand wheel at the top of the bonnet is used to manually screw down the stem with the disc at its end until the disc seals against the seat opening. In large industrial appl...
Installing a Forged Steel Ball Valve allows water to be turned off to a section of a plumbing system without having to turn off the main water supply. Many plumbers recommend that a valve be installed for each plumbing fixture for upgrades and maintenance. This task can be done by a homeowner without the need for a plumber. The materials needed are inexpensive, and the whole installation should take less than half an hour.
For performing the process, it is necessary to do some preparations. The mechanical tools should be ready aside. They are the felt-tip pen, t...
Adding a Wafer Check Valve to a fuel line will help to keep fuel flowing in the right direction.Fuel lines in your vehicle are in charge of carrying filtered gasoline from the tank all the way up to the carburetor or injectors, ready to be sprayed into the intake manifold. Unfortunately, wear and tear, vibration and hard driving conditions abet the development of rust, physical deterioration and leaks around fuel lines without warning.A check valve opens and closes when pressure is applied to one side of the valve. It uses a steel ball sitting on a small spring to op...
Variations
The Cryogenic Ball Valve comes in several variations. The full port valve has a hole in the ball that is the same dimensions as the pipe that it is attached to. This keeps water from being restricted as it flows. The reduced port valve creates an opening in the ball that is smaller than the pipe. This creates less water flow. A trunnion valve has a pin securing the ball so that it doesn't dislodge. This is for high velocity flow. There are three- and four-way valves, as well. With these the flow is altered by the position of the ball. Th...
Wafer Check Valve are used in several different devices, and they are advantageous for several reasons. For example, they stop flooding or overflowing in sump pumps and water heaters. They protect equipment in control valves, strainers and flowmeters. They also save power, because the backwards-flowing water would use up electricity even when the device was off.
There are several different types of check valves. A ball Tilting Disc Check Valve consists of a ball that sits over the valve's opening. When liquid flows past the ball, it pushes the ba...
The first patent for the Actuated Globe Valve was issued in February of 1870 to J.H. Davis.Piping systems are used in many functions, including plumbing. Many piping systems are designed to control and direct the flow of a liquid as it enters and exits other parts of a system. A globe valve can be used to manage liquid flow. For example, a temperature control on a large cooker in a food plant may modulate steam in a jacket on the cooker. The temperature controller would adjust the steam valve to achieve the proper cooking temperature.
Process
Glove valve hal...
A ball valve contains a round ball valve that rotates over a set of holes inside the ball valve head, allowing hot and cold water to flow into the spout. This ball valve is used in kitchens and bathrooms. When the bathroom Trunnion Mounted Ball Valve fails or leaks, it is time to replace the entire ball valve assembly. This is a simple project for any homeowner, no matter how much experience he has.
1 Turn off the water supply. It is important to not only turn of the water supply, but also to ensure no water remains in the line. Locate the hot and cold valves u...
The Slab Gate Valve is a fluid control device that raises or lowers a gate with a screw mechanism. They typically fail where the gate rests at on the seat. If either surface becomes damaged, the seal is not tight and water flows past the valve.
1 Shut off the water before the gate valve by closing a valve upstream of it. You may have to close the main water valve to the home if there is not another option. If it is your main water valve that needs repairing, you will need to contact the city to turn off the water at the street. Open a valve downstream of the g...
The valve which controls the flow of any type of liquid flowing through pipes is termed as gate valve. It is used in most of the buildings and homes where there are pipes. These valves include round handles which are seen on the bulbous section of the pipes.
Slab Gate Valve are the commonly used valves to open and close the path of a fluid from straight line mediums. A gate valve may find applications in a number of areas. For example, these valves can be used for the purpose of irrigation and also in various chemical plants to control the flow of different ...