Gate Valves

SIO manufactures and customizes high-quality gate valves for different applications. These valves are mainly used for stopping and starting fluid flow. They are also used when straight fluid flow is required as well as when minimum restriction of flow is needed. In most applications, these valves are widely open or completely shut.

When the gate valve is completely open, the disk is removed entirely. This will leave an opening for the fluid passing through the gate valve. There will be no obstruction, thus ensuring a low loss of friction. This type of valve is useful in different types of fluid and ensures a steady seal when shut.

You can depend on SIO to make the most efficient gate valves for all your fluid flow needs.

    Gate Valve Manufacturer

    A gate valve, also known as a sluice valve, is one of the most widely used valves in industrial applications. It is primarily manufactured to control the flow of process fluid. It is equipped with a flat closure component, better known as the gate, that slides into the line to restrict flow.

    As a reliable gate valve manufacturer, gate valve produced can cut through slurries and other viscous materials, such as grease, heavy oil, cream, molasses, and more. It is well-suited for liquid applications, such as in oil and gas industries, water and wastewater treatment facilities, pharmaceuticals, and power plants.

    A gate valve is available in different sizes to handle different volumes of process flow in SIO. Moreover, it can be made from different types of materials and design features and options. 

    Forged steel gate valve

    Ball Valves Features

    SIO's valve testing and inspection for their cast stainless steel valve adheres to ANSI B16.34/ API 598.

    The end connections of SIO’s forged gate valve are highly versatile and include SW, NPT, RF, BW, Extended tubes.

    SIO forged and cast gate valves both come with Outside Screw & Yoke features.

    Stainless steel gate valves by SIO have face to face dimensions compatible with ASME/ANSI B16.10.

    Why use Gate Valves?


    Low Fluid Resistance

    Gate valves have a straight shape which allows the fluid to pass through easily without any resistance or blockage. As compared to other types of valves, these offer minimal fluid resistance.

    Two Way Flow

    Apart from allowing easy blocking and passing through of different kinds of fluid, a major advantage behind using gate valves includes them being bidirectional.

    Robust Sealing Performance

    While being used for media regulation, gate valves work to effectively shut off the flow without causing any leakage. The on/off mechanism of gate valves is much more convenient than other types.

    Standard and Specification of Gate Valve

    Before buying a gate valve, it is important that you determine the requirements of your application. This is to ensure that your gate valve is reliable, effective, and has a long lifespan. Here are the important factors to consider so you can choose the proper gate valve manufactured by us that will serve you for a long time:

    Integration with Other Parts of the System

    A faulty wedge can lead to high abrasion and affect functioning so looking at the design and size is essential for industrial compatibility. For a limited space, small sized gate valves work well but cannot handle high pressure systems like bigger gate valves do.

    The Process Flow

    SIO’s industrial gate valve needs to be inspected thoroughly so that the material and media compatibility can be worked upon in case errors are seen.

    The Operation and Function

    Understanding the specific operation and function of the gate valve and the system it will be installed in helps determine which type of material and end connection will be best suited.

    The System Temperature

    The shut-off function of a gate valve is also useful in managing hot and cold fluids. It is also important that you determine the temperature of the process flow. Various materials are used in the manufacture of gate valves, such as stainless steel, carbon steel, cast steel, carbon steel, and more. Each of these materials is well-suited for specific temperature ranges.

    The System Pressure

    The shut-off function of a gate valve is designed to endure different pressures of fluid. It is essential that you identify the pressure range that will go through the gate valve. This helps you choose the right size and maximum pressure capacity to handle such working conditions.

    Cleaning and Maintenance

    Cleaning and maintenance affect gate valve’s performance of the working system. Is the gate valve accessible and can it be cleaned easily? Answering these questions helps you determine whether or not a gate valve is suitable and practical for the entire system.

    Common Ball Valve Applications

    As a professional gate valve manufacturer, SIO supplies high-quality gate valves that could be used in all high pressure and high temperature.

    Gate valve for steam service

    Gate valves for steam service are often made of forged steel for better tolerance against high temperatures and corrosion resulting from oxidation. The parallel side valve is the most commonly used gate valve for steam service. The flexibility of this type of gate valve allows for easy contractions and expansion in Petrochemical and natural gas industries.

    Gate valve for gas service

    Gate valves are effectively used for multiple fluids, which includes both liquids and gasses. For gasses, the stopping feature is effective enough to seal the components in an industrial facility. You can easily get a gate valve made of stainless steel or ductile iron for the job. The disk used in this type of valve can be either flexible or solid, which will work well for use in the oil and gas industry..

    Gate valve for high temperature service

    Petroleum, chemical, and natural gas industries need high temperature gate valves, you require high resistance of the material to not only oxidation but also temperature. Parallel type and butt weld gate valves are used for high temperature service; They are mostly made of metals and alloys with high melting and boiling temperature.

    Gate valve for vacuum service

    For vacuum service, the valve being manufactured needs to be precise in cuts and sizes so that it can allow for isolation of the media without any kind of leakage. Both the manual and pneumatic gate valves can be successfully used across different large-scale cleaning industries. For vacuum service, gate valves often provide three-step actuation.

    Gate valves for high pressure service

    SIO manufactures gate valves that can easily withstand high pressure media flow whether the flow is stopped or ongoing. The seal allows for the valve to keep the media blocked without causing leakage. High pressure valves like stainless steel and socket weld gate valves are used in food and cleaning industries.

    Gate Valve Manufacturing


    While manufacturing gate valves, SIO ensures that the conditions are perfect for precise production, even in wholesale. For high temperature gate valves,  the manufacturing will require the forging or casting of different metals and alloys as per the client’s request. 

    Our facilities are equipped to handle the mass-production of gate valves for both industrial and commercial applications. We ship worldwide and will be right there on your doorstep just when you require our service. 

    What Are the Different Types of Gate Valves?

    Gate valves are mainly used to provide tight sealing in a variety of industrial applications. However, there are many types of gate valves that differ in materials, pressure and temperature ratings, valve operator, etc. To provide you better understanding and determine which type of gate valve you need, here are the different categorizations of gate valves:

    Gate Valves by Material

    Stainless steel gate valve

    Stainless Steel Gate Valve

    A stainless steel gate valve is known for its resistance properties towards corrosion and abrasion. These are also highly tolerant to high temperature and pressure, other types of corrosive media. The construction ensures long life even with high viscosity media.

    Cast steel gate valve

    Cast Steel Gate Valve

    Cast steel gate valves are characterized by the shock resistant manufacturing. They are highly flexible and have enhanced strength. Because they are resistant to high temperature and pressure conditions, they are used in oil refineries, petrochemical plants, and water treatment plants.


    Forged Steel Gate Valve

    A forged steel gate valve is formed under extreme pressure given to carbon and iron. The valve thus is made of forged steel making it highly durable. They are used in oil and gas industries, for power generation, and wastewater treatment plants.

    Carbon Steel Gate Valve

    Carbon steel gate valves are manufactured with forged or cast carbon and steel. It is known for its superior mechanical features like resistance to chemicals and high tensile strength. It is used in petrochemical industries and power generation, especially in relation to steam and fluid services.

    Gate Valves by Bore SIze

    Full Port/Bore Gate Valve

    Full bore gate valve has an opening with the same diameter as the pipeline opening. The tight sealing helps in continuing the flow of the media in water treatment plants with a mixture of fluids and solids to prevent clogging of the pipeline.

    Reduced Port/Bore Gate Valve

    A reduced bore gate valve is more affordable with a smaller opening as compared to the diameter of the pipeline. This is better suited for smaller spaces and where there is no concern related to pressure drop

    Gate Valves by Condition

    Gate valves have no shortage of applications and are used for multiple purposes. The major gate valve uses are seen in the manufacturing, oil and gas industry, as well as pharmaceuticals.

    Threaded globe valve

    High-pressure Gate Valve

    High pressure gate valves are made to handle different types of media with high pressure up to 2250 psi without causing any internal or external leakage. SIO uses forged steel and stainless steel gate valves for handling high pressure conditions. They are seen in hydrocarbon processing and water treatment plants.


    High-temperature Gate Valve

    SIO’s gate valves are manufactured so that they can easily handle high temperature media up to 750°F. SIO uses carbon steel and stainless steel as the preferred material for high temperature conditions. They are used in petrochemical and water treatment plants.

    Cryogenic Gate Valve

    Cryogenic Gate Valve

    Gate valves made of stainless steel are well equipped to handle the cryogenic temperature. They can handle high viscosity and different types of corrosive media as well. Mostly made of cast steel and stainless steel, these valves form a warm vapor area for better insulation for different valve parts. Metallurgy and oil and gas industries use cryogenic gate valves.

    Gate Valves by Valve Operator

    The difference in gate valves by the valve operator depends on the application. Gate valves are actuated through the use of a threaded stem monitored by a motor or handwheel.


    Manual Gate Valve

    A manual gate valve is characterized by its hand operated function which causes the media to flow or be blocked as per the industrial need. They can easily handle pharmaceuticals and wastewater treatment plants. Non-flammable liquids like heavy oils and slurry can be handled by manual gate valves.


    Automatic Gate Valve

    In contrast to manual gate valves, automatic gate valves are made to be operated via actuators. They promote safety and security of all the people in HVAC systems, chemical, food and beverage industries and plumbing. Ventilation systems and combustion engines are suitable environments for these types of gate valves.

    Gate Valves by End Connection

    An advantage when you consider SIO’s manufacturing of an industrial gate valve is its multiple end connections. Universal and tensile coupling is possible as well as welding.

    Butt-weld Gate Valve

    Butt-weld Gate Valve

    The butt-weld sized end connection is made so that it matches the bevel of the pipeline. The valve is then welded to the pipeline for accurate sealing. They are applied to industries with high pressure and high temperature applications.

    Socket weld gate valve

    Socket Weld Gate Valve

    A gate valve with socket weld end connection is made to easily tolerate high temperature and pressure conditions. These end connections ensure that there is no internal or external leakage of the system.

    Forged steel gate valve

    Threaded End Gate Valve

    A gate valve with threaded end connection has either internal or external threads used for connection to the system pipeline. It allows for easy assembly and is suitable for any system with low-pressure media piping systems.

    Flanged-End Gate Valve

    Double Block and Bleed Ball Valves

    For critical applications in which repair, maintenance, or replacement of equipment does not interrupt the system, Block and Bleed Ball Valves are ideal. This valve provides a tight shutoff that prevents contamination from entering the system.

    Gate Valves by Seat Type

    Different gate valve types will be manufactured with different numbers of seats depending on the end application. For instance, you will find two inclined seats on a wedge-shaped gate valve.

    Resilient Seated Gate Valve

    Resilient Seated Gate Valve

    Resilient seated gate valves are perfect for easy regulation of different kinds of media and complete isolation as and when required.


    Metal Seated Gate Valve

    Metal seated gate valves are made easy to regulate media flow in both unidirectional and bidirectional systems without causing any kind of blockage or leakage.

    Gate Valves by Disc Type

    Based on the disc types, you can easily differentiate between types of gate valves. These include parallel disks, solid wedge, flexible wedge and split wedge gate valves.


    Solid Taper Wedge Gate Valve

    A solid taper disc is the most common type of disc and with good reason. This is so because it is better suited for a range of different media. It can also easily handle rough flow of media.


    High-temperature Gate Valve

    SIO’s gate valves are manufactured so that they can easily handle high temperature media up to 750°F. SIO uses carbon steel and stainless steel as the preferred material for high temperature conditions. They are used in petrochemical and water treatment plants.


    Cryogenic Gate Valve

    Gate valves made of stainless steel are well equipped to handle the cryogenic temperature. They can handle high viscosity and different types of corrosive media as well. Mostly made of cast steel and stainless steel, these valves form a warm vapor area for better insulation for different valve parts. Metallurgy and oil and gas industries use cryogenic gate valves.

    Gate Valves by Body Bonnet Joint

    The body connection in a gate valve dictates how much it prevents leakage. There are three types of bonnets in gate valves: screw-in, welded, pressure-seal and bolted. The body bonnet joint helps SIO create low-cost solutions for their clients.

    Screwed Bonnet

    A screwed bonnet has the simplest design and is often used for low-cost valves.

    Bolted Bonnet

    A bolted bonnet is the most well-known design and widely used in large and high-pressure gate valves. This design requires a gasket to seal the joint between the bonnet and valve body.

    Welded Bonnet

    A welded bonnet is another popular design that does not require disassembly. It is more lightweight compared to its bolted bonnet counterpart.

    Pressure-seal Bonnet

    A pressure-seal bonnet is often used for high-pressure and high-temperature applications. The higher the pressure in the body cavity, the greater the force on the gasket in a pressure-seal gate valve.

    Gate Valves by Stem Movement

    Rising-Stem-Type gate calve

    Rising Stem Type

    Also called an outside and yoke gate valve because media flow is controlled by movement of the stem. The outside stem and yoke design will keep the steam and disc out of the path of the fluid. Keeping these parts will help in increasing the life of valve parts from interaction with corrosive parts.

    Non-rising-Stem-Type gate calve

    Non-rising Stem Type

    These valves are perfect for small spaces because they do not rely on stem movement for controlling media flow. They are used in industries that do not have corrosive media and need functioning in limited space.

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