Valve DN80 Non-rising Resilient Sluice BS5163

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1.Structure of Gate Valve Description

A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed.When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.

 

2. Main Features of the Gate Valve

• Valve body cavity using non-toxic epoxy resin,both inside and outside flashboard completely is coated with rubber

•  Free of water pollution

• High manufacturing accuracy

• High strength

• Environmental protection and energy saving

• Good visual effect

 3. Images

 

Valve DN80 Non-rising Resilient Sluice  BS5163

Valve DN80 Non-rising Resilient Sluice  BS5163

 

4.FAQ

1. What's are the characteristics of gate valve?

The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. 

2. What is the work principle of gate valve

 The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. 

3.  What is the structure?

Bonnets provide leakproof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.

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Q:motorcycle valves compression?
Yeah, valves should be adjusted from time to time, both intake and exhaust, they are the two biggest areas of the compression system that would cause low compression. That old of bike probably needs a good 'go-thru' to see what's happening, the leak-down is your best bet at that happening.
Q:1993 pontiac bonneville bad egr valve question ?
I have a 1996 Firebird with the same 3.8L V6 motor. I recently had to have the EGR valve replaced, as well. I am not sure- but I think that the EGR valve has to do with the emissions. It may not pass an emissions test if the EGR valve has been bypassed. If you have to have it replaced, it probably won't be that expensive. Good luck. EDIT: here is an explanation of what an EGR valve is, and what its function is, thank you to this gentleman named Shovelkicker for providing an answer elsewhere in 'answers.'
Q:How to drill hole through pipe for saddle valve?
This requires a water hook up kit. They're rather cheap - 20 to 30 dollars. For a distance such as yours, it's best to run the flex line from behind the fridge, down through a small drilled hole in the floor next to the wall, and under the floor. And along the basement ceiling, securing it to the floor joists in the basement ceiling, or drilling holes in the joists - as with running electrical wire. If the joists are laid in the same direction the hose needs to go, then it is simply secured in place with plastic loops against the side of one joist. When the hose reaches the area in the basement, just under the sink, a cold water pipe (probably half inch) will be easily accessible. The kit comes with a self tapping valve that will allow the hose to hook up without any tools. It simply clamps on to the cold water pipe and presses a hole in it for the fridge water. They're okay, but I never trusted 'em to remain truly leak proof. So I always just make a trip to the hardware store and get the fittings necessary to install a regular valve for this. The water line kits are sold at Home Depot, Lowes, Manard's, and the like. The instructions are easy to follow. And for the distance you are dealing with, you may need to buy the needed length of flex hose separately, and discard the too short section in the kit.
Q:Are valves connected to tbe whole rocker arm assembly?
A spring an a clip
Q:Reed valves?
Reed valves were popular when you could get a street two-stroke bike. They allowed air to flow only one-way. I think Yamaha even had a nifty rotary valve thing that squeezed the air that the piston sucked so it would flow a bit faster into the combustion chamber. With a four-stroke, I don't think there's any advantage to complicating the air flow with a reed. That's what cams and valves do. You need to burn more fuel to get more power. There are several ways to do this. You can do this with more RPMs, more fuel/air mixture, or a larger displacement. But that's about power, not necessarily a reed valve.
Q:What happens before, during, and after an aortic valve replacement?
They will probably do a tissue valve replacement so there would be no need for life long therapy of blood thinners. As for the post op. Our hospital recovers heart surgeries right in our cardiovascular intensive care unit. We do not reverse anesthesia, we let our patients wake up on their own. Because of this, we have them on a ventilator until they wake up and are functional enough to breath on their own. We also monitor things very invasively, so there are a lot of lines. We have a Swan Gantz catheter which measures the pressures in the heart, an ART line, which measures your blood pressure internally, and an I.V. that goes directly into your heart called a central venous line. Usually after you wake up from surgery, if all your pressures look good, we start to take out those invasive lines and we get you out of bed. Most of our patients are in our unit for 1-2 days if all goes well. Then we transfer them up to the telemetry floor for a couple of days and then we send them home. Valve replacement surgery is still a major surgery but we do them every day and the majority of our patients come out of surgery just fine and are home in a week.
Q:Valve cover painting in 1990 BMW 525i?
you do need heat resistant paint, you can chrome if you want to, bm dealer can advise best brand of paint
Q:4 Valves per cylinder?
4 valves 2 intake 2 exhaust some single cylinder bikes have 5 2 intake 3 exhaust a 2 stroke engine has 0 valves they have an intake and exhaust port cut into the piston
Q:valve ticking is it bad?
Ticking is play in the vavle train there is something out of adjustment. What is out of adjustment and cost depends upon if the engine has overhead cams. Since this makes you uncomfortable keep looking. Let a mechanic buy this car. Otherwise you're going to loos a lot of sleep.
Q:How do i know if i have to adjust my valves?
Buster Brown is right on the money. Most bikes have double overhead cams these days and the valve clearance tightens up and can cause burned valve faces or seats. Single overhead cam engines using rocker arms tend to loosen up and will clatter more. He's especially on the money about keeping track of valve clearances at each check. I've done that for years as well as keeping record of compression readings.

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