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Gate Valves

(3740 products)

Gate Valves are also called sluice valve as they act like sluice gates similar to the one at a barrage or dam. Therefore, when the sluice gates open immediately allow the water to flow in the other direction. Gate Valves work as fully open or fully closed, and it is not used as a controlling valve. It works similarly to a shut-off valve.

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Gate Valves Manufacturers | Suppliers in India

Company NameLocationMember Since
Universal EngineeringAhmedabad, India18 Years
Hri Engineering CompanyGurugram, India15 Years
Integral Process Controls India Pvt. Ltd.Pune, India15 Years
Automac EngineersBharuch, India15 Years
Aaa IndustriesMumbai, India14 Years
Viral EnterpriseValsad, India13 Years
Steam & Power EngineersPune, India12 Years
Wavin Industries LimitedGwalior, India10 Years
Bhagyalaxmi Engineering WorksAhmedabad, India8 Years
Asten Controls LlpAhmedabad, India8 Years

What Is Gate Valves? Types and Parts
 

To completely stop the flow of fluid in a pipeline or, alternatively, to allow full flow when the valve is fully open, a gate valve is commonly utilized. Thus it is employed either in the fully closed or fully open states. A gate valve comprises of a valve body, seat and disc, a spindle, gland, and a wheel for working the valve. The seat and the gate together fulfil the function of shutting off the flow of fluid. The disc of a gate valve is totally isolated from the fluid when the valve is fully open. Therefore, there is hardly any impediment to the flow. As a result, the pressure loss caused by fluid passing through a gate valve is negligible.

Here are some different kinds of gate valves:

1. Split Wedge Valves

The split wedge is made up of two discs joined together mechanically along a parallel axis.

Both a which-shift and a parallel-disc disc can be present. Even once the fluid is heated, it is not possible to generate a thermal blend.

2. Flexible Wedge Valves

Cuts in the disc's periphery make it flexible, allowing it to withstand the force of heat without deforming. Each and every one of the cuts varies in terms of size, form, and depth.

Because of this, it's also a bit more sturdy. The alignment of the Seat is also optimised by this method, making it more resistant to leaks.

3. Solid Wedge Valves

The solid wedge is one of the earliest and most prevalent types of Gate Valves still in use today. Both horizontal and vertical installations are possible, and it can handle a wide variety of fluids. A turbulent flow is no problem for it.

The problem is that there is a tendency for it to start choking due to thermal expansion inside the pipe, making it more prone to leaking. Because the metal expanded during heating, the thermal locking wedge could not slide between the seats.

4. Screwed Bonnet Valves

These valves are typically supplied as primary isolation valves and include bonnets with an exterior stem thread. 

The needle point on the valve stem is fixed in place and there is a cold rolled surface and a rear seat for easy replacement of the valve seat. The die-forged construction of the valve body ensures its durability.

5. Bolted Bonnet Valves

A globe valve known as a fastened bonnet globe valve has its body cover secured with bolts. To create a seal, either a gasket or an octagonal sealing ring is inserted in the middle of the valve.

Parts of Gate Valves
 

The part of the gate valve that was mentioned above is explained in detail below.

1. Gate 

The gate is available in several forms and technologies to ensure reliable sealing in a wide range of settings, but its basic shape falls into one of two categories parallel or wedge. 

Slide gates, slab gates, and expanding gates are all examples of parallel gates. There is a second sort of gate valve called knife gates, and its design is comparable to that of wedge valves.

2. Slab Gates 

Through-conduit gate valves, or slab gates, are one-piece gates with a bore-sized opening in the centre. When fully open, the bore is centred between the two ring seats. This arrangement allows for a steady, undisturbed current.

3. Parallel Expanding Gates

Sealing is achieved via mechanical expansion of the gate in expanding gate valves, which consist of two slab gates linked together. When the slab gate is opened, fluid can move freely between the two chambers.

 An upward force on one slab and the stopping of the second slab by a step in the valve body provide for the necessary mechanical expansion outward for a satisfactory seal.

4. Seat

The gate valve's seal with the gate is carried out and maintained by two seats. The seat of a gate valve may be a separate component or may be included into the valve body. Valve seat rings are either threaded into place or pressed into place before being sealed welded to the valve body. 

The latter structure is preferable for use in higher temperature environments. The valve seat can be either pressed in or threaded into the body of the valve, with the latter two providing greater customization options than their integral counterparts.

5. Parallel  Slide Gates

Some gate valves have a parallel arrangement, with the gate flat and the seat parallel. In order to create a reliable seal, parallel gate valves utilise the pressure in the line. In the centre of a pair of flat gates is a spring, forming a three-part structure. 

The spring forces the components closer to the seats, improving their ability to seal. Because of its construction, parallel gate valves are more secure in high-temperature settings.

Wedge-shaped gate valves can experience heat binding and expansion limits if there is too much pressure on the seats. 

In addition, closing torques are lowered due to the lack of wedging action in parallel gates, which allows for smaller, less manual effort or less expensive actuators. Clean seating surfaces are maintained with sliding parallel gates that trap dirt.

6. Sharpened Gates

The lower surface of a knife gate valve is tapered like a knife, making it ideal for cutting through various materials. These valves don't require regular maintenance because they clean themselves every time they open and close by passing the seat rings.

Gate Valve Vs Ball Valve - Key Difference
 

Is a ball valve better than a gate valve? Can’t be answered until they first establish what makes the two types of valves distinct from one another. The first thing to keep in mind is that they both perform essentially the same purpose.

Ball valves and gate valves differ mostly in terms of their construction and markings. Ball valves have a stem and ball that turn in a horizontal plane, whereas gate valves open by moving a circular or rectangular gate out of the way of the fluid. The ball valve is a rotational valve because of its feature. The gate and the seats of a gate valve are separated by a sealing surface. They are commonly utilised in situations calling for minimally obstructed, straight-line fluid flow. 

Ball valves perform differently than other types of valves because they are quarter-turn valves. To regulate the flow, they employ a hollow ball that is perforated and pilotable. When the hole in the ball is towards the direction of flow, the valve is in the open position. The valve's handle, which is flat and parallel to the flow when open but perpendicular when closed, is used to close the valve. This allows for quick visual verification of the valve's operational status.

Gate Valve vs Butterfly Valve: Key Difference
 

Differences Between Butterfly Valves and Gate Valves.

-Gate Valves

The primary role of a valve is to act as a gatekeeper, as suggested by the device's name. The gate itself is the most important component of a gate valve. Depending on its position, a gate inside the valve either opens or closes the passageway. The internal gate can be raised or lowered using a screw or lever to facilitate movement. A gate valve can be any size or shape, though typically they are quite big. Consider the water mains and the valves that regulate water flow. Large as they may be, gate valves are intended to be operated by a single person.

-Butterfly Valves

A butterfly valve, a clever variant of the more common gate valve, can be found in a wide range of sizes and configurations. A similar internal gate is used in such a valve. The internal operation of the gate distinguishes this from a traditional gate valve.Similar to the gate valve, the butterfly valve can either allow or restrict flow. It is crucial to consider the pros and cons of each valve type before making a final decision.

Difference Between Gate Valves and Globe Valves
 

The points can easily tell the difference between a gate valve and a globe valve.

1. Typically, globe valves are used to regulate flow, while gate valves are used to completely shut off the flow.

2. Compared to globe valves, gate valves are more affordable.

3. When in their open state, gate valves allow for a relatively unimpeded flow of whatever media they are designed to control. In contrast, globe valves have high-pressure drops and a lot of resistance to fluid flow.

4. The design of a gate valve is straightforward, while that of a globe valve is more involved.

5. Glove valves can be used in both directions, whereas gate valves can only be used in one.

6. Because of the difference in flow direction between the two, globe valves are better at trapping fluid in the line.

In order to allow fluid to pass through, a gate valve (also called a sluice valve) opens by moving an obstruction (the gate) out of the way. With the gate fully open, a gate valve barely slows down the flow of fluid and takes up very little room along the pipe axis.

Best Quality Gate Valves Available Online With Price
 

Gate Valves are available online with the price list by different suppliers. Buyers can check the gate valve price online offered by the gate valve manufacturers in India. With a large number of companies available online buyers can choose the different types of gate valves easily. They can take a look at the specifications, product details, materials used in the production, quality standards, and others.

Buyers looking forward to buying gate valves should check the features and details, such as:

-Compact Design
-Quality Certifications
-Raw Materials Used
-Delivery Time
-Minimum Order Quantity
-Stock Availability
-Price

Buy Gate Valves Online
 

Buyers can check the different B2B and eCommerce platforms to buy all kinds of gate valves online. With an online buying facility, buyers can no longer have to worry about physically visiting a market or factories to purchase gate valves. They can check the gate valves and the available sub-categories to get the best product at the most reasonable prices. 

-Api Gate Valve
-Forged Steel Gate Valve
-Ci Gate Valves
-Manual Gate Valve
-Knife Gate Valve
-Brass And Bronze Gate Valve
-Leader Gate Valves 

Buyers can get the contact details of suppliers and send them all their requirements for purchasing the best quality gate valves.

FAQs: Gate valves manufacturers
 

Q. What is a gate valve and used for?

Ans. A gate valve is a type of valve that controls the flow of a liquid or gas by raising or lowering a gate or wedge that is located inside the valve body.

Q.  How does a gate valve work?

Ans. A gate valve works by opening or closing a gate or wedge that is located inside the valve body. When the gate is in the open position, fluid can flow through the valve. When the gate is in the closed position, fluid is blocked from flowing through the valve.

Q. What is the difference between a gate valve and a check valve?

Ans. Gate valves are opened and closed by turning a handle, while check valves are opened and closed automatically by the pressure of the fluid.

Q. How can I find a gate valve manufacturer in India?

Ans. Finding gate valve manufacturers is simple with leading search engines like Google. You can simply type gate valve manufacturer with your specific location to get suggestions to choose from. 

Q. What is a stem in gate valves?

Ans. The stem in a gate valve positions the disk correctly. It can be either rising or non-rising. It is normally threaded which attaches to the handrail for controlling the flow of media.

Q. What is called the seat of a gate valve?

Ans. The seat of a gate valve is that part of the valve where the disk snugly fits in to block the flow of liquid or gas. It is also sealed by an o-ring for preventing leakage.

Q. What kind of media a gate valve is suitable for handling?

Ans. A gate valve is suitable for handling different types of liquid and gas across several industries. However, it is an ideal valve for slurries that contain granules, solids, and powders.

Q. How gate valves are protected from corrosive materials?

Ans. The selection of materials for manufacturing gate valves is done on the basis of the intended application of gate valves. Besides, for extra protection from corrosive materials, the gate valves are coated with suitable paint or varnish. 

Q. What are the advantages of a gate valve?

Ans. Gate valves are known for their durability and ability to withstand high pressure and temperature. They are also easy to operate and maintain, and have a relatively low cost.

Q. How do I know if a gate valve is open or closed?

Ans. A gate valve is open when the gate or wedge is in the fully open position and is closed when the gate or wedge is in the fully closed position. Some gate valves have a visual indicator that shows the valve's position.

 

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