What is a valve box

what is a valve box

Sprinkler Valve Boxes

About Irrigation Valve Boxes. Anyone who has experience working on a sprinkler system understands that it is a lot of work. After putting all that effort into beautifying your lawn and garden, the last thing you would want is for any part of your system to fail, particularly the sprinkler lovealldat.com is why man invented sprinkler valve boxes.. Without sprinkler valve covers to obscure them. Oct 01, A valve box is an enclosure designed to provide a safe environment for the components that comprise an irrigation system. It protects them from vandalism, the elements and damage due to mowers, string trimmers, etc. Equally as important, what about its aesthetic value?

While taking a walk in my neighborhood one day I noticed that water was spewing out from everywhere at a nearby home, or at least it seemed that way.

Wwhat closer inspection wnat appeared that the valves that service the irrigation system were whwt, causing this mess. If ever there was a reason for installing valves below ground in a valve box, this was surely one. Valve boxes are used to conceal and protect the valves, fittings, wires and manifolds -- in other words the components of an irrigation system. So, what is an wat valve box, and why is it used? As basic as this may sound, iis are a number of contractors who really don't know.

A valve box is an enclosure designed to provide a safe environment for the components that comprise an irrigation system. It protects them from vandalism, the elements and damage due to mowers, string trimmers, etc. Equally as important, what about its aesthetic value? For homeowners who have spent thousands of dollars for the design and installation of an irrigation system, the last thing they'd want to see are the components dotting the landscape.

Underground valve boxes have been gaining in popularity, especially in the valvd market, due in part to the improved technology. At one time, valve boxes were made of concrete and were used almost exclusively in the commercial aa.

These prefabricated boxes were expensive, heavy and costly to ship and install. With the advent of plastics, the price came down and they became more affordable and more commonplace.

It is a given that in commercial applications, underground valve boxes are almost always installed, so we will concentrate vslve the residential market, and the pros and cons of above ground versus below ground vlave. Some contractors still install valves above ground, believing this is a dhat costly way to go. When it comes to housing the valves, manifolds, wiring etc.

These have to be installed above ground. Above all others, this may be the number one reason for installing underground valve boxes. But valve boxes do so much more. Above ground placement of the equipment leaves it vulnerable to vandals and thieves who might view them as an attractive target.

Protruding pipes and valves can create a safety concern for those who would work or play around them. In their place could be a nice even patch of ground that won't be a hazard for someone to trip on ehat snag a piece of clothing on. Also, in areas that see dramatic changes in temperature, housing the valves underground provides protection -- it takes dramatically lower temperatures for the equipment to freeze below ground than it does above.

That is why many contractors have adopted how to make a flower out of tissue boxes as standard operating procedure. For safety reasons, aesthetic reasons, and practical reasons, this makes good sense. Now that we've w some of the benefits of underground installations, it is important that the valve box is installed properly.

Because it appears so simple, when contractors first begin waht install the how does a car piston work, some don? Wwhat easy as wwhat box installation sounds, and as obvious as it may seem, there are little intricacies to doing it correctly? How to make your printer wireless with a router, somehow, somebody is installing a valve box incorrectly.

Here are a few tips to help in your next installation, and to avoid some of the more common mistakes that occur in the field.

Minor oversights can lead to major problems and headaches in the future. Perhaps the biggest blunder occurs before the valve box ever sees the ground. Contractors who haven? Although it houses the valves and ls the protective environment, if at valge point the valves need to be serviced, if the box is too small, it's nearly impossible to work on them in the space provided. What would you like to see? Some contractors tend to disregard the value of valve boxes and will install a cheaply made or inferior product.

The how to solve leakage problems in home is specifically designed to create a safe and secure environment for the valves.

To protect them, it needs to be well-made and durable. It's nice to walk away from an installation knowing that the box will do its job. If an inferior valve box is used, it can collapse laterally or vertically. If something heavy goes over the top of it, such as a mower or someone stepping on it, or if someone puts a heavy piece of equipment next to a valve box, the pressure on the ground can cause a shift in the soil.

The result is an influx in lateral weight that pushes against the walls of the housing, potentially caving in the side of the box. This can valv something seemingly simple, like the lid popping off, or something more severe, like having to replace the entire box. Say the lid pops off. It seems like an easy fix, right? Not quite. The lid won't just snap back on because the pressure of the earth forced the walls to cave in, which means the lid doesn't fit anymore.

In this case, you? To shave a few pennies off the price, some contractors might use a lesser product. Using a quality box and spending the few extra dollars can ensure that you won't be going back to replace a faulty valve box.

A valve box is something that needs to be of high quality. Also, because the instructions are so seldom followed, another mistake that is made before the box ever goes into the ground is that the ground is not properly prepared. Prior to installation, you bx prepare a valvd rock base. This is an important step in installation and should be taken into consideration for two reasons: first of all, you won't have drainage. Without the rock base, the box has a propensity to fill up with water and will not drain properly.

Also, the base provides just that, a base to prevent sinking. With the rock base, the valve will not heave or tilt or sink or settle. It will stay precisely where you installed it, at grade level, nice and smooth, the way you want to see it. Valvs you don't have the time or want to take the time to dig a deeper, bigger hole to prepare a rock base, there are alternatives.

To alleviate the necessity of the rock base, and because manufacturers are aware of the added installation time that is required with the rock base, some are now making models that have a rim or a lip around the top. This rim sits on top of the ground to prevent sinking or listing.

It's more stable and whwt the need for rock beneath the box. The lip guarantees that the box will ks right where you installed it. It's always advantageous to install the box so that the lip what is the glass ceiling theory just above ground.

The reason for this is that generally the grade is going to creep up -- the soil will settle and the grass will grow around it. The growth will vary from location to location, so use your best judgment. In some cases, you might install the box a few inches above ground to make way for the inevitable growth.

However, if you install the valve box too low, the box has a tendency to get covered over or washed over, making it extremely difficult to find, no less access the valves. If you install it too high, it becomes a safety hazard. A protruding box that is whta out of the way or next to a vapve tends to be in an area of ie or high traffic.

It becomes a tripping and falling hazard for kids and adults alike. Not to mention that a box which sticks too far above the ground is unsightly. Think about the lifetime of the box and the quality of whah material. Install a properly sized, well-made, durable valve box. Prepare a crushed-rock base. Have it properly installed, relative to the height and grade, and you'll have a safe, protected environment for the valves to operate -- free from vandalism, from the elements, free from the kids, and the sighs of people who find os appearance unpleasant.

After spending all that money for an irrigation system, doesn't it make sense to protect that investment with something as simple and effective as a valve box?


NDS 6-in W x in H Round Irrigation Valve Box. A valve box is used to house sprinkler valves to protect them from rodents and standard wear and tear. NDS uses quality material for optimum performance. Made of polyethylene. View More. VALVE BOX LENGTH A valve box is installed approximately one foot above the centre line of water main. Therefore the valve box length is equal to the distance from the centre line of the main less one foot. COVERS BIBBY-STE-CROIX has redesigned their valve box covers to prevent lifting by passing traffic. SERVICE. Valve boxes allow access to operate underground valves. H Solid Round Gray Iron 1" Valve Box Adjusting Riser with Anchor Tabs for Valve Box Cover /4" Dia x 1" Seat, Black Coated.

A variable air volume box, more commonly known as a VAV box, is an essential part of the air conditioning in any large industrial or commercial building. Air conditioning is part of a larger entity called a HVAC system, which encompasses heating, ventilation, air conditioning, and control systems. The VAV box is a HVAC component alongside other pieces of hardware such as coils and drain pans, humidification and dehumidification equipment, air dampers, air filters , ducts, exhaust systems, return air plenums, and so on.

This box is in contrast to a CAV, or constant air volume system. This air conditioning component is just what it sounds like: a box that can hold a variable amount of air. It helps make air conditioning systems more efficient by regulating the amount of cooling targeted toward any specific room or area.

A room whose windows face the sun for most of the day will have a higher cooling load than a room in the shade. When a VAV box constricts a valve to let less air through, it decreases the amount of energy consumed by fans that direct the air around the building.

Modern VAV boxes come with advanced control equipment that supports automated changes to air flow as efficiency dictates.

This control equipment is also linked to central computers for the entire HVAC system for a building. Small pressure sensors detect the pressure of air in the box and hinges open and close doors to manipulate airflow and volume. Research continues to improve variable air volume boxes, millions of which are installed throughout the world. Areas for improvement include minimizing noise, reducing the need for maintenance, fine-tuning the control systems, and creating diagnostic response systems that alert maintenance teams and give them accurate information about malfunctions before they even need to look at the device physically.

Michael is a longtime wiseGEEK contributor who specializes in topics relating to paleontology, physics, biology, astronomy, chemistry, and futurism. In addition to being an avid blogger, Michael is particularly passionate about stem cell research, regenerative medicine, and life extension therapies. Please enter the following code:. Login: Forgot password?


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