Category: Industrial Valves

Valve Design and Working Principle of Butterfly Valve

A butterfly valve is used to isolate or regulate the flow of a fluid. It can be used for a wide range of applications such as water supply, wastewater treatment, and fire protection, for chemical and fuel industries and many more. 

Butterfly Valve Working Principle

It is based on the quick shut off principle. The disc of the valve is placed in the center of the pipe which allows a rod to go through it to an actuator, on the outer side of the valve. The disc remains parallel or perpendicular to the flow. A pressure drop is introduced by the disc upon the flow even when open. 

It open or closed when the disc is rotated a quarter turn and hence it is also known as a quarter-turn valve. There is a metal disc on the rod and when the valve is closed it blocks the passageway by giving it a quarter turn. This metal disc is known as a butterfly. It is the most important component of the valve. 

Butterfly valve classification

Butterfly valves are quick to open type valves used to stop, regulate and start the flow of the fluid. A gearbox type actuator is attached with large butterfly valves and a hand wheel is connected to the stem of the valve via a gearbox. The butterfly valve is classified into four types.

  • Centric Butterfly valves: Centric butterfly valves are also known as soft seated valves. They are used for low- pressure and non- critical applications in gate and ball valves. They are very cost-efficient and easy to install. Centric butterfly valves are also very lightweight.
  • Motorized butterfly valve: Motorized butterfly valves are used to control the media flowing through the pipelines of the system. By changing the position of a round disc within a pipeline, it starts operating. They are available in many different sizes and they can be fit into any type of specifications. 
  • `Pre-insulated butterfly valves: Pre-insulated butterfly valves avoid the cost as well as manpower for insulating the valve after installation. They are made up of very fine quality materials. They are of very simple design and enhance durability. Pre-insulated valves have a long service life and they are crack resistance.
  • Wafer type butterfly valve: wafer type butterfly valve is very easy to install into the system but it does not work as an isolation valve. It is placed between pipe flanges and the flange bolts encircle the valve body.

Butterfly valves design

The butterfly valve comes into two designs, centric and eccentric. The only difference between these two designs is, in centric butterfly valve stem is placed in the center of the disc and disc is placed in the center of the bore. Whereas in eccentric butterfly valves, there can be more than one stem placed offset from the center. 

SKG Pneumatics INC is a one-stop solution for all kinds of industrial products. If you are willing to buy any kind of valves for industrial purpose as well as home, then this place is perfect for you. SKG Pneumatics INC is one of the prominent suppliers of Industrial Equipment such as butterfly valves, motorized ball valves and many more. 

 

 

The Advantages, Application & Components of Butterfly Valves

A butterfly valve considered as a regulating device which is used to shut off the flow of a fluid. It is also known as quarter turn valves because it provides 90-degree rotary motion for the stoppage. They often came in large sizes but short in length and are of the very lightweight. They possess very low torque requirements. It is used with globe and ball valves in some applications. 

Advantages

Butterfly valves are the best choice for all kinds of butterfly valve requirements. These are very cost effective and the performance of the product is also very high. These valves are similar to ball valves but have a little more advantages. The dist in the butterfly valve is lighter than a ball and it requires less structural support than a ball valve. Butterfly valve does not require high maintenance and hence widely used in industrial applications. They also require a little space and it is very easy to open them. 

Components

There are four main components of a butterfly valve: body, disk, stem, and seat.

1. Butterfly valve body

The body of the butterfly valve fits between two pipe flanges. It is one of the main components of the butterfly valve. Lug and wafer body design are most common among them.

2. Butterfly valve disk

The disk is used to stop the flow of the liquid. The disk of the butterfly valve has a number of variations in its design and orientation to improve the flow, sealing or torque.

3. Butterfly valve stem

 It is available in two design one- piece shaft or two-piece design. For the proficient selection of the material with respect to its cost as well as mechanical properties, it is confined from the media.

4. Butterfly valve seat

It provides the shutoff between the disk edge and the seat. Elastomers and polymers are used to make the seat of the butterfly valve. It may be bonded with the body or may be locked in.

Applications

Some of the common applications of the butterfly valve are: 

On/ off isolation, Dead- end service, heating, ventilation, and air conditioning system, Industrial process piping, Municipal raw water intake, Municipal chlorinated water systems (2000 ppm), Municipal feed water and reservoir, throttling and process control, full vacuum, blower installations.

We as SKG Pneumatics INC is a prominent supplier of all kinds of the valve and it is one of the best industrial valve dealer and supplier in Delhi. If you are looking for a butterfly valve for your industry or any other valves, it is the perfect destination for you. We have an array of industrial products and fire equipment from best makers of the industry. 

How Fire Sprinkler System Work?

Fire is an ultimate nightmare for those who run a store or warehouse. Just imagine your building is stocked with furniture and other flammable items and a fire breaks out at night when no one is around. No need to worry we are here with a fire- fighting system which can react the moment trouble strikes. It has a sounding alarm and an automated sprinkler system to put out a fire as quickly as possible. Fire sprinklers are not for business use only they are also worth having in homes. This is one of the best fire protection systems which have protected life and property for over 100 years.

A fire sprinkler system seems to be a simple system made up of pipes with sprinkler head that deliver water to a fire. But it is a complex system that is carefully designed, installed and tested. An automatic fire sprinkler system works when high heat triggers the sprinkler system. The air above the sprinkler heats rapidly when a flame ignites. When this hot air reaches a sprinkler’s head, it triggers a chain reaction. The sprinkler is filled with a glycerin-based liquid expands when it comes in contact with the hot air and the sprinkler head activates. A fire sprinkler system is ready to install after the designing process.

Fire system installation process is quite simple and it is done by the pipe fitters at the construction site. There is a need of commercial sprinkler system in commercial buildings as a fire could seriously injure or kill employees or customers, damage property, destroy paper records. A fire sprinkler system makes your business safer. The automatic fire sprinkler system detects the fire and it is far way better than the spray that is used to extinguish the fire.

So if you are also willing to make your business safer than automatic fire sprinkler system is the right choice for you. SKG Pneumatic Inc is the one stop destination for complete range of industrial products. We are one of the leading fire fighting equipment suppliers. You can contact us for any kinds of fire equipment.

Types of Gate Valve and its Specifications

A gate valve is a linear motion valve that is used to start or stop the flow of the fluid in piping. There is a gate or wedge type disk which moves perpendicular to the flow which directs the flow to stop or start. In any process plant, the gate valve has the most common use and are suitable for both above-ground and underground installations. A gate valve is also known as a sluice valve. It is very easy to open it, one just have to lift the gate out of the path of the fluid. It does not require a wide surface; it fits in a very little space along the pipe axis. It requires a 360° surface contact between disk and seat to achieve proper sealing. A Gate valve is made up of certain parts that allow it to function properly. Valve’s body or shell is the most principal part of this particular valve which can connect inlet and outlet pipes in a piping system. Some other parts of a gate valve are as followed. Bonnet, Solid Wedge, Body seats, Stem, Back seat, Gland follower, Gland flange, Stem Nut, Yoke Nut, Handwheel, Hand wheel nut, Stud bolts, Nuts, Bonnet Gasket, Lubricator, Packing. All these parts allow the Gate & sluice valve to function properly.

Now let’s discuss the main types of gate valves.

 

1. Knife Valve   

Knife gate valves contain a very high quantity of suspended liquids. It is mainly used for on – off and isolation services in systems. Knife valves are the best suitable for working in some of the harshest environment. These valves should be used for the applications which require a completely open or completely closed position.

2. Brass Gate Valve   

Brass gate valves are the perfect fit for the applications where corrosion is a serious concern. It is considered as the most durable gate valve. It has a very high capacity to tolerate high temperatures as well as high pressure.

3. Slide Gate Valves 

The main purpose of the slide gate valve is to shut off the flow of product from discharge points such as dry bulk storage bins, silos, conveyors, etc. It is the best choice for industrial works.

4. Non-return Valves 

Non-return valve has considerable use in allowing the liquid as well as gas to flow in one direction. It is widely used in a huge variety of applications and household items.

5. Check Valves 

Check Valve has a very vast use in a variety of applications. It is also used in household items. Mostly check valve has two ports. One for fluid to enter and other for the fluid to leave. Check Valves & Non-return Valve are available in a variety of sizes and cost as well.

SKG Pneumatic Inc is one of the best gate valve suppliers and industrial suppliers as well. All our products are designed by skilled and expert engineers for resilient durability.

Types of Valves in Gas and Oil Industry

In a piping system, valves play a very important role. They are the most essential components of the oil and gas industry and are used in various purposes. In upstream, midstream and downstream, valves are used for controlling the flow, protecting the equipment and refining of crude oil respectively. In this post, we shall discuss the types of valves used in the gas and oil industry.

Following are the most common types of valves used in the gas and oil industry:

  1. Control Valves: 

    As it is clear from the name that control valves are used to control the flow Based on the process conditions. A control valve is termed as a final control element in automatic control terminology. There are two main parts of control valve i.e. the sliding stem and the rotary action.

  2. Bellow Seal Valve:   

    Bellow seal valve is a kind of control valve which is used in balancing the pressure of the fluid. For pipelines of steam and flammable, explosive media, bellow seal valve is the perfect solution. By adopting the structure with bellows, it helps in avoiding the leakage of the valve stem. It is very secure and prevents the loss of fluids. It has a very long operating life with minimum operating cost. The structure of bellow seal valve is durable which helps in preventing leakage.

  3. Butterfly Valves:   

    Butterfly valve is used to stop, regulate and start the flow. It has a very vast use in oil and gas industry. It is a quarter- turn rotary motion valve which means that rotating the handle of the valve at 90° can completely close or start it.

  4. Cryogenic Valves:  

    Cryogenic valves are used in very cold applications. Most oil and gas industries use cryogenic temperature range starting at -238° F i.e. -150° . Cryogenic valve has a very keen ability to function in both low (-320° F) as well as high (750 psi) temperature.

  5. Gate Valves: 

    A gate valve is also known as sluice valve and it is mostly used for both above- ground and underground installation. It performs it operation doing a clockwise to close CTC or clockwise to open CTO rotating motion of the stem. Gate valves are also used when minimum pressure loss and a free bore is needed.

  6. Globe Valves:

     Globe valves are used for regulating the flow in the pipeline and for throttling flow control. There is a flow direction arrow marked on the valve body and it must be installed according to it. Pressure classes of globe valve include 150 through 1500.

  7. Pressure Reducing Valves: 

    As the name tells, pressure reducing valves reduce the pressure of a fluid. It controls the downstream pressure or outlet of the fluid. It is an open, 2 ways valve which ensures the pressure of the fluid until the desired pressure is reached downstream.

 

These valves are used in many different appliances, systems, and common items inside the house, industries. Industrial valves are of various types such as Gate Valves, Globe Valves, Ball Valves, Butterfly Valves, Check Valves, Pressure Valves, and Diaphragm Valves, etc. SKG Pneumatics Inc, are leading suppliers of Industrial Valves and Equipment, based in Delhi. They are offering a quality range of industrial valves & all types of fire safety products.

Flanged Valves – Types and Applications

Flanged valves allow assembling the system components without cutting or welding pipe. A flange is a rigid joint that can withstand the pressure and pipe loads related to the system and is a structural element of the piping system.The biggest advantage of using a flanged valve is the valve can be removed easily from the pipe. Another benefit is it ensures a tight joint under given operating conditions which helps in avoiding leakage problems.

Flanged valves allow assembling the system components without cutting or welding pipe. A flange is a rigid joint that can withstand the pressure and pipe loads related to the system and is a structural element of the piping system.

Several dominant standards such as British Standard adopted from the European Standard is followed while deciding the size and joints of the flange. Factors like the type of service, material requirement, maximum pressure capacity, and temperature affect the rating of flanged valves.

The biggest advantage of using a flanged valve is the valve can be removed easily from the pipe. Another benefit is it ensures a tight joint under given operating conditions which helps in avoiding leakage problems.

They are made with different types of materials such as cast irons, bronzes, castable alloys, and forged steels. Flanged valves can be used in various industries including food and beverage, chemical, pharmaceutical, oil and gas, and in waste-water management services.

Different Types of Flanged Valves

The major type of flanged valves are ball valves, check valves, butterfly valves, globe valves, and relief valves.

1. Check  Valves : It is used to prevent back flow in a piping system and they can sustain heavy pressure. Check valves can be used in refining and chemical industries, waste-water management systems, and in oilfield production.

2. Ball Valves: It is used to control the flow of substances and possess poor throttling characteristics. Ball valves can be used in oil and natural gas industry. They are also used in chemical storage and many manufacturing sectors.

3. Butterfly valves: They have limited control capability and are used to regulate flow. They require very less maintenance and are very accurate. They can be used in pharmaceutical, chemical, and food processing services.

4. Globe valves: They use linear motion to throttle flow.Globe valves don’t leak as much as other valves. Globe valves can also be used as stop-check valves as the opening-closing time is shorter. They can be used for high-temperature applications.

5. Relief valves: They are used to protect the system during an overpressure event. Relief valves are used in high-rise buildings, high-water pressure inthe urban water supply network, and mines.

6. Control Valves: A control valve allows specific pressure to pass through the system. They can be used in construction, oil and gas industry, nuclear power industry, pharmaceutical, and refining industry.

Conclusion

Flanged valves serve different purposes and are widely used in various industries. Faulty assembly of the valve can cause dangerous leaks so it is advised to clean the connection thoroughly before installing a valve.

SKG Pneumatics Inc. has all types of valve equipment that serve various purposes. All of our products are highly durable and provides the complete value of money.

What is the difference between Hydrant Valve & Landing valve?

Landing valves are something that is used for fighting fires and is provided on risers in buildings. These are usually located in staircase landings, allowing easy access to firefighters. A fire hydrant system is comprised of water supply pipework and valves, which can be connected to the hose of fire brigades for firefighting purposes. Hose reel drum and hose pipe are also effective in fighting fires inside a building. Both the hydrant valve and landing valve have similar designs, irrespective of the place installed. Flow Control Valve is a device that is used to control the flow of water by varying the size of the flow directed by a signal from a controller. 

Difference between Hydrant Valves & Landing Valves:

Landing Valve

Landing valves are permanently charged with water using a pressurized supply. In simple words, they are globe valves, installed on hydrants. Also, a hose and a branch are connected to a coupling on it. Landing valves are installed in all the floors of a building where installation of hydrant valve is not possible and is then used by fire fighting department to extinguish the fire. The normal pressure of a landing valve is around 65 psi. In order to keep the nominal working pressure at the inlet of the hose reel, a pressure reducing valve is used in hose reel system.  

Hydrant Valves

Fire Hydrant Valves are efficient in fighting large fires. They allow firefighters to extinguish the fire from a distance. Pumping facility is the most important part of the fire hydrant system. The main use of the pump is to pull the water from the reservoir and supply the same pressure to the hydrant points enabling firefighters to extinguish the fire effectively. In order to connect and operate fire fighting equipment from a hydrant valve, the pressure rating must be 100 psi (7 kg/cm2). But, it varies depending on the size of the building. The pressure of hydrant valves in large industrial complexes might range around 10-11 kg/cm2 while in small buildings it might range around 4-5 kg/cm2.  

Fire sprinklers and flexible hoses can be effective in fighting small fires. Fire sprinklers discharge water when the effect of fire or extensive heat is detected and is effective in the early stage of fire. Flexible hoses act as a connection between the pump to the system. The standard length of a flexible hose is around 100 ft.  

If you’re looking for fire fighting instruments, SKG PNEUMATICS INC might be the best choice, with more than 14 years of experience they deliver quality instruments of highest standards.

Applications of Valves in Water Industry

In industrial engineering, manufacturing and scientific communities, there is a vast use of valves. The main objective of the valve is to control the flow and pressure of water and to release air from the water system. Valves play a very ample role in the water industry.  Water valves are used in many parts of daily mechanical devices such as HVAC and water system in an office.

 

Most Common Valves Found in the Water Industry and their Characteristics

 

1. Gate Valves

Gate valves are the most common valves found in the distribution system. Gate valves are mostly used for the on/ off control. Gate valves prevent the flow of the liquid in both directions. They are very easy to install and to maintain. Gate valves are cost efficient and they are mostly used in petroleum industries because of their abilities to cut through liquids.

2. Butterfly valve

Butterfly valve also known as quarter turn valve because it provides 90-degree rotary motion for stoppage. They often came in large sizes but short in length and are of very light weight. They posses very low torque requirements.

3. Ball Valves 

Ball valves are considered as ideal for pump check services. In ball valves a ball rotates between two circular seats which are made up of a kind of PTFE and co- polymer. They exist in a small size range between 1/2” to 12”. These valves are used in higher pressure applications. Ball valves can be operated with less torque than gate valves and has small dimension and are lighter in comparison of gate valves.

4. Plug Valves

Plug valves are used to control the flow by rotating the conically tapered plugs inside the valve body. They came in a very simple design with few parts and their maintenance and repair is very easy to do. They contain very low head cost and comes drip tight closing.

5. Regulating Valves

 Regulating valves are designed to enable the direct control of flow rate and the considerable control of process quantities i.e. reduces the flow/ pressure. A high head loss can be tolerated by regulating valve and they came with multiple control scenarios. These valves are installed on trunk or industrial pipelines and it consists of a regulating unit which varies the flow cross-section.

6. Air/Vacuum Release Valves

 As it is clear from the name that these types of valves releases air during the filling and testing of pipe and it also releases air that naturally accrues in pipes. During draining it allows air into the pipe and it also assures the pipeline carrying capacity.

SKG Pneumatics Inc is one of the best suppliers of all kinds of industrial valves such as Gate Valves, Globe Valves, Ball Valves, Check Valves, and Non-return Valves, Pressure Reducing Valves, Shutoff Valves. If you want to buy any kind of valves or want to know more about our organization, then we are always at your service with our heart and soul.

Ball Valves – Types and Applications

Ball Valves are used to control the flow of the water or any other liquid. The industry has various demands according to the pressure that is having. For case, some of the industries that are dealing with high pressure of water will need the standard quality materials whereas there will be some industries where the amount of the flow will matter.

SKG Pneumatics Inc has been dealing all the type of valves such as Gate valves, Globe Valves, Ball Valve with strainers, Check Valves & Non-return Valve, Gate & sluice valve, Pressure Reducing Valve, Shutoff valves.

There are different types of Ball Valves available in our store. All of these valves used in Plumbing are built with the standard raw material to maintain durability.

Get quality of Ball Valves from leading ball valve supplier

There are many types of valves that are used in the industries. We provide all the valves that you need for all the industries. All the valves are built with great raw materials and the quality to ensure the durability of the product. Along with all of these, we also know about the budget of our customers and hence all the valves are affordable to buy for any of the customers. Here we as ball valve supplier offer different types of valves-

• Split-Body Ball Valve: Here the body is divided into two different parts and the cover along with the ball, seat rings are present.
• Top-Entry Ball Valve: They are available in various size and used by the people who are looking for having a single-piece body with the top entry.
• End-Entry Ball Valve: In this product, the ball is inserted at one end and is retained from other. These are the most affordable valves and are also available in large size.
• Three-Piece — Body Ball Valve: Her body is divided into the 3 parts where one main part is for holding the internals and the stem is released from the top where a hole is given.
• Double Trunnion Ball Valves: The ball is added with the two other integral shaft extensions. These are called the bottom and top trunnions. These are made to hold and for the shaft to rotate freely. A top shaft is used to open and close.

Also, if any of the valves have any variation, we also provide them. All of these are easy to install and will last for a long duration of time. You can use any of these for each and every need.

Functions and Applications of Automatic Balancing Valve


Automatic balancing valves are used in heating and cooling systems where water flows through the system. Balancing valves are used to ensure the correct distribution of water flow within the system. Water flows from one system to another. When water is flowing in this way it is possible that the pressure is not consistent enough. This can lead to an inconsistent output. To control and regulate these valves are used.

Functions of balancing valves

When Check Valves & Non-return Valve are used in hydronic systems, it ensures a proper design flow within the system leading to a better working of the cooling system where it is being used. Apart from this the other functions of automatic valves are:

  • They work as pressure independent control valves and help to limit flow to achieve the desired rate of flow.
  • It is an automatic valve and does not require manual intervention. This makes it simpler to use and there is no dependence on external persons.
  • Ensures the best flow rate that can improve the efficient working of the system.
  • Valves help to eliminate vibration and noise from the system where they are used.
  • Automatic valves help to achieve better temperature control and cooling is more effective.
  • Since it is automatic in nature, there is no need for a person to be employed to physically operate the valves, thus it leads to savings in terms of labor and time – this translated to savings in money.
  • Easy addition of additional devices to the system without having an effect on balance.

Uses and applications of balancing valves

Automatic control valves have many uses and applications. It is commonly used in applications like:

  • It is used in HVAC (Heating Ventilation Air Cooling) systems used in large commercial and residential buildings to ensure temperature control.
  • It is used in chilled ceilings where a cooling effect has to be produced.
  • It can even be used in fan coil units.
  • It can be effectively used in any heating or cooling system where a balanced flow is needed.

Installation

Automatic balancing valves are very useful devices used in most cooling systems. When an organization wishes to buy and install these valves, they need to make sure they get it from one of the leading suppliers of Balancing valve. A well-known manufacturer and supplier would ensure quality in the valves. Durability and reliability are what one needs to look at while buying these valves.