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2012-09-14 14:53:42
2012-09-14 14:53:42

The ball valve may not be opening all the way restricting the flow.

ANS 2- A ball valve, if fully open and functional, cannot cause low pressure. -Look for other possible causes. -And please be more specific about the EXACT problem next time.


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A ball valve usually has two ratings wsp and wog Working Steam Pressure and Water Oil Gas

Make sure your valve is all the way on at hot water tank. If you have a gate valve -- instead of ball valve -- Gate valves -- will break inside the valve and you will not know if it is all the way on or not -- If you turn handle and it keeps turning then it is broke inside the valve -- turn water off at main and replace with ball valve.

Every valve is used for a specific application such as a lift check valve ,soft seat check valve, gate check valve, OS&Y valve, globe , gate and various models of each. A ball valve generally has a higher WOG pressure rating and many use it as one valve fits the majority of applications One would dare not use a ball valve on a fire suppression system or a street main shut off . On high pressure applications a Ball valve being a quick closing valve can cause a lot of damage when it is closed to fast causing a hydraulic shock wave (water hammer)

The ball ceramic valve evolved from the plug valve, in which there is a plug initially. The ball valves also can be divided into floating ball valve and fixed ball valve. The differences between floating ball valve and fixed ball valve are as follows. For the fixed ball valve, the ball is fixed and will not move even under pressure. There are floating valve seat to press the sing real tightly on the ball when suffering the media's pressure. Besides, the axletree is equipped with the stem connecting with the ball. The floating ball valve contains the ball floating inside. The structure is simple and has good tightness. When the media goes through, the pressure is passed into the seal rings, therefore the material of the seat rings should be well considered in design.

U need to put a valve in the ball, then measure the air pressure with an air pressure gauge.

The valve that shuts off the water in a toilet cistern is known as the ball-cock. It is operated by a hollow ball attached to an arm, once the ball floats to a certain level, the valve shuts off the water. This action prevents water flowing out of the over-flow pipe to the outside. The ball and valve is known as the ball-cock.

Depends on the applications NOT on high pressure steam as the velocity of the steam will score a ball valve throttling capabilities

A ball valve is used to turn water , gas or oil on and off.

No, water pressure is immediate. If you replaced the sink faucet you probably ended up with one of the "low flow" faucets that are being produced to save water. Sometimes they can be taken apart and "encouraged" to let more water through. if the valve had no been used in awile the gasket will stick when you turn it off and back on replace the valve with a quarter turn ball type valve and you wont have this problem again

no it can't , valves you can use are a prv pressure reducing valve or a globe or flow valve

The fill valve (ball valve UK) is siezed or clogged. As the water level rises, the float-ball rises and closes the valve when the water reaches the proper level.

Gate Valve is * Well sealed * Causes a low pressure drop * Don`t Cause hammering * serve Wide size Range * Wide range of temperature * Wide range of temperature Ball Valve is * Limited in usage for Temperature cautions * Needs a big Operating Torque for big Sizes

That would depend on the application such as high steam pressure and if throttling is needed

Ball valve is usually preferable. full flow with no restriction and a lot easier and faster to turn off when needed.

A ball valve is a contrivance by which a ball, placed in a circular cup with a hole in a bottom, operates as a valve.

ALWAYS USE BALL VALVE. Gate valve will leak. meaning it will let some water come through valve after time if not a lot. They just don't hold up after time.

If a globe valve is the same as a ball valve and your question is how does it work to stop the flow of water? There is a ball inside the valve that has a hole through the center in the same direction as the handle. When you turn the handle, the hole closes and seals against the sides of the valve.I Globe Vavle is not the same as a Ball Valve. A Globe Valve has a disc that closes an opening and can be used to throtle the flow. A Ball Vavle is as described above. The Globe Vavles usually have a wheel type valve handle and a ball valve has a lever type handle.

Where one would use either a gate or globe pattern type A ball valve is used to turn water , gas or oil on and off.

When the handle is in line with the pipe, the valve is open.

Sealing Makes all the difference. The key difference beteween a floating ball valve and a trunnion mounted ball valve is how each achieves a line seal. Trunion mounted ball valves are uses a spring mechanism and/or line pressure assistance to drive the upstream seat against the stationary ball. The surface area exposed to the pressure through the relatively small passageway is actually just the back of the seat. The floating ball valve utilize natural line pressure to press and seal the ball against the downstream seat. The line pressure is exposed to a greater surface area - the entire upstream face of the ball, which is an area equal to the actual pipe size.

A water valve is similar to a switch. With a valve you can open and close a waterflow.A water valve is a mechanism by which you can control water availability or flow. Opening and closing of the valve is most often by lever or wheel control, operating a gate, ball, or butterfly to stop/release water flow.Depending on its location in the plumbing, the valve may have different purposes and designs. Different varieties offer varying degrees of control, durability, and ease of use:# A standard spigot is a gate valve which is designed for variable water pressure and flow, such as for a sink or shower. Those in public areas generally have more aesthetically pleasing appearance. # An emergency shut-off valve, often either a butterfly or ball valve, is designed to close off the flow of water quickly in the event of a plumbing emergency such as a broken pipe or overflowing toilet. In a butterfly valve a flat disc is turned within the pipe by an external knob/lever. A ball valve is commonly illustrated in plumbing pipes games (see link, below.)# A pressure-reducing valve can be used either at the entrance to a building from the public water supply or within the building's plumbing system, for example to reduce the water knocking common in hot water heating systems. # Check valvesallow unidirectional flow, and may stop the flow of water after a certain volume has passed, such as from tank to toilet, in which example the valve is controlled by a float which gauges volume in the tank; # Mixing valves, for example to control the temperature of water blended from hot and cold water pipes. # Solenoid valves, which care used in heating systems and sprinklers. The valve mechanism employs gaskets, springs, and even electricity.

the ball bounce high cause of the air in the ball If there is more air pressure in the ball it will bounce higher likewise if there is less air pressure it will bounce lower. This could be done by exposing the ball in different temperatures. If the ball gets hotter it will bounce higher and if gets colder it will bounce lower.

In a single handle faucet the mechanical principle is a ball valve one. This is where the ball valve acts to cut off whichever type of water is not wanted so the correct water comes out.

As more of the ball is submerged, you increase the volume of water being displaced. The difference between the density of the water and that of the air inside the ball generates an upward force, or buoyancy, on the ball. Once the ball is totally submerged, there should be no difference in the weight (force) required to sink the ball farther into the water, because although the pressure in the water is higher at an increased depth, its density does not change substantially. The difference in density between the water and the air in the ball remains the same. At greater depth, the ball will actually decrease in volume, and the air inside will increase in pressure, as a result of the water pressure on the flexible ball.

A valve normally with a stainless steel ball inside it in lieu of a gate or washer such as a globe pattern valve

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