High-pressure valves for wholesale - SIO

High Pressure Valves

We at SIO are capable of creating high-pressure valves for your big and challenging projects. High-pressure valves are designed to meet demanding applications, which can differ in operating states and consumption requirements. These operations will need continuous operating pressure and to avoid any problems, valve and pump systems should be compatible and meet the required capacities.

There are different types of high-pressure valves depending on where they are used. These can include pressure-control valves, directional-control valves, safety valves, and by-pass valves among others. All of these valves are specially designed with excellent reliability and high endurance.

You can count on SIO to provide you with the best quality of high-pressure valves no matter what the application may be!

    Top entry trunnion mounted ball valve

    What Is a High-Pressure Valve?

    A high-pressure valve is an industrial valve designed to meet the crucial requirements of the most demanding applications with performance, reliability, and safety. It is used to allow, obstruct, or control media passage in extremely high pressures and in many cases, high risks and high vibrations. The variations of materials and designs of SIO high-pressure valves guarantee that proper performance is met for any operation.

    SIO high-pressure valves are designed to withstand the most demanding applications, such as extremely high pressures in petroleum industries and cryogenic applications in chemical industries.

    We offer both two-piece and three-piece bodies in our factory, both of which are suitable for complicated operations that deal with various media, like slurries and solvents. They are also available in different pressure ratings of 800#, 1500#, and 2500# to endure high pressures in various industrial applications.

    Different valve sizes are also available ranging from NPS ½ to NPS 3. Our high-pressure valves are made from durable materials such as stainless steel, carbon steel, and low-temperature carbon steel so they can perform well in unstable conditions that deal with corrosive and abrasive media.

    We offer several high-pressure accessories to guarantee durability including an antistatic device and blow-out proof stem. Other essential features include a locking device, oval safety handle, easy automation, and more.

    What Valves Can be Used for High-pressure Applications?

    Metal Seated Ball Valve

    1. Ball Valve

    A high-pressure ball valve is designed to endure high-operating pressures and manage flows of fluid and other process media. It features a spherical disc with a hollow center that functions as the closing mechanism of the valve.

    Essentially, a high-pressure ball valve is used to provide a positive shut-off; but it can also be used for throttling. It is widely used in a range of industries, such as oil and gas, chemical and petrochemical, and any application that requires bubble-tight sealing.

    2. Butterfly Valve

    High-performance butterfly valves, which include double offset and triple offset butterfly valves, provide throttling and tight shut-off control for severe conditions, such as high pressures and abrasive, corrosive, and viscous media flow.

    These butterfly valves feature a flat and circular disc, often termed as the butterfly, which rotates vertically to manage or obstruct media flow. They are often used in severe applications of oil and gas industries, petrochemicals, power generation, and more.

    SIO High performance butterfly valve
    Manual forged steel globe valve

    3. Globe Valve

    A type of linear motion valve, a high-pressure globe valve is built to start, stop, and regulate media flow that involves harsh service conditions, such as high pressures and toxic materials. It works by turning the stem that allows the disc to go upwards and allow media to go through or downwards to obstruct media flow.

    A globe valve is mainly used in high-pressure steam and waterline, but can also be used in an array of applications, such as cooling water systems, chemical feed, boiler vents and drains, extraction drain systems, and more.

    4. Gate Valve

    A high-pressure gate valve is an isolating valve designed to fully open or fully close media passage that involves high pressures and temperatures. It provides tight sealing through a special gasket design and packing made from strong materials, such as pure graphite.

    The operation of a gate valve is done by fully rotating the stem clockwise to open or close the valve, which causes the gate to go upwards when in an open position and downwards when in a closed position. The gate valve requires multiple turns to shift from an open to a closed position, preventing water hammer effects.

    The difference between a gate valve and a globe valve is that the disc of a gate valve is in the same angle of the flow, while the disc of the globe valve is perpendicular to the seat. This is why a gate valve is only used for isolation, while a globe valve is suitable for both isolation and throttling.

    Forged steel gate valve

    5. Diaphragm Valve

    A diaphragm valve is a bi-directional valve excellent for managing different types of media flow including gaseous, liquid, and semi-solid, such as slurries and colloids. It has a flexible disc that comes into contact with the seat found at the top of the valve body to achieve a tight seal. The operating parts of this valve do not come into contact with the media flow, which prevents contamination in the working environment.

    Typical applications that utilize a diaphragm valve include fossil power plants, chemical, nuclear power plants, pharmaceuticals, water and wastewater treatments, etc.


    6. Check Valve

    Also known as a one-way valve, a high-pressure check valve is a type of valve that only allows fluid flow in one direction and prevents backflow. It is a self-automated valve that does not need assistance to open and close and continues to work even when the system loses electricity, air, or manpower when manually cycling it.

    A high-pressure check valve provides leak-proof control of backflow in alternative fuels, instrumentation, and small process applications that need high-pressure flow and cycle life. It is often used in chemical industries, nuclear industries, power plants, and other industrial processes.

    7. Needle Valve

    A high-pressure needle valve is often used to control flow rates or provide a reliable shutoff of clean fluids and gasses accurately. To meet demanding applications, it is available in various body styles, seal, and seat materials. It works by opening and closing an orifice / opening with a tapered end that raises and lowers when spinning a handle.

    A high-pressure needle valve is used to regulate or shut high-pressure and high-temperature liquids and gasses in oil and gas, chemical, water jet , and water blast applications.

    needle valve, niple stainless steel isolated on white background
    safety valve isolated on a white background

    8. Relief Valve

    A high-pressure relief valve is a type of safety valve that prevents overpressure and offers protection to downstream equipment by allowing the pressurized media flow to go through an accessory passage out of the system. It is designed to open at a predetermined pressure to protect pressure containers and other equipment against pressures that exceed their specified limits.

    A relief valve is commonly used to ensure that the pressure is in safety limits in demanding applications in oil and gas industries, such as oil tanks and Liquefied Petroleum Gas (LPG) processing systems. It is also used in other industries such as chemical and petrochemical and food and beverage industries.

    What Are the Applications?

    1. Oil and Gas Industries

    equipment and pipeline in oil refinery in clear sky

    SIO high-pressure valve is well-suited for the unique challenges of the oil and gas industries because the extended stem design is to keep the stem seals away from the process flow’s temperature. This allows the stem to provide premium performance in both high and low temperatures, as well as cryogenic applications.

    2. Pharmaceuticals

    Optical control quality of a vials, pharmaceutical factory.Flare light

    The pharmaceutical industry requires a safe and sterile environment with guaranteed zero leakage. SIO’s high-pressure valves are made with stainless steel or carbon steel, which have excellent resistance to abrasion and corrosion, thus ensures there are no leaks during operation.

    3. Cosmetic Industry

    Glass or plastic bottles with screw caps standing on conveyor belt_648908983 (1)

    With their guaranteed tight sealing, our high-pressure valves are built to meet the demanding applications of the cosmetic industry. They may be automatically actuated for easier and more efficient operation. This is useful in this industry where the production and contamination of particles affect the result of the entire process. With our premium high-pressure valves, zero leakage is ensured to promote safe and sterile applications.

    4. Food and Beverage Industries

    brewery interior, equipments

    Food and beverage industries usually involve complicated applications that need reliable sealing. SIO high-pressure valves ensure unobstructed flow, even in demanding processes. In these industries, complete sterility is a must to ensure the integrity of the entire operation. Our high-pressure valves are made with stainless steel, which is the recommended material for sanitary applications.

    5. Power Processing Plants

    Pressure safety valve, Relief valve at suction

    SIO high-pressure valve is specially made to meet the severe conditions of power processing plants. It may be supplied with an antistatic device and blow-out proof stem to endure the high pressures of processing plants. It is made with carbon steel and stainless steel to withstand corrosion and abrasive wear. It also comes with an extended stem, which is suitable for cryogenic applications.

    What Are the Most Common Types of
    High-pressure Valves?

    1. High-pressure Steam Valve

    A high-pressure steam valve is used to control pressure and flow levels of heated water vapor, steam, and corrosive fluids, which are widely used in food and beverage industries, chemical and petrochemical industries, and other product processing plants. Steam is used to power turbines to produce electricity and for other processes, such as cleaning, humidification, and heating.

    A high-pressure steam valve works by rotating the handwheel clockwise which causes a downward movement that extends the bellows and compresses the control spring. This opens the steam valve that allows steam to go through into the downstream pipes and surround the bellows. As pressure increases, the steam valve acts through the bellows to counter the force of the adjustment spring. When it reaches a predetermined pressure, the steam valve closes to maintain the ideal system pressure.

    2. High-pressure Control Valve

    A high-pressure control valve is a valve used to maintain the pressure of operations within safe limits. It assists in various functions, such as keeping the pressure below the desired limit and maintaining consistent pressure in a certain part of the equipment.

    3 Types of High-pressure Control Valve

    A high-pressure relief valve is used to limit the maximum pressure in a system by redirecting excess media once the pressure goes beyond the desired limit. It is designed to open at a certain pressure to protect the system against exceeding pressures that could be dangerous or prevent the system to function optimally.

    Once the high-pressure relief valve opens, the redirected media flow (liquid, gas, or a mixture of gas and liquid) is routed through pipework known as a relief header or flare header to an elevated gas flare.

    The excess flow is often burned and the combustion gas products are released to the atmosphere. As the excess flow is rerouted, the pressure inside the container or vessel will stop rising. Once it goes back to the reseating pressure of the relief valve, the valve closes.

    A high-pressure safety valve is used to relieve the static pressure on a gas application and usually opens fully followed by a popping sound. It is often used in pressure vessels such as gas storage tanks, electric power boilers, and chemical plants.

    It is sometimes used interchangeably with high-pressure relief valve. While their functions are quite similar, they are not exactly the same. A high-pressure safety valve is equipped with a manual lever that opens the valve in case of emergencies.

    A high-pressure safety valve is a type of automatic valve that opens once the pressure of the inlet side of the safety valve increases to a particular pressure. Once the valve is opened, the flow (gas or steam) is diverted to another passage to relieve it from the system. When the pressure goes down to a predetermined pressure, the safety valve will close back again. A high-pressure safety valve works independently and does not require any electric power support to function.

    A high-pressure reducing valve is used to provide a consistent pressure in a particular part of a system that operates at a lower pressure compared to what the system can tolerate. It is used in a wide range of industries including natural gas industry, mining industry, aerospace, water pressure reduction, and air compressors.

    To maintain a consistent pressure of gas, the pressure-reducing valve will match the flow of gas passing through it. If the system pressure decreases, the flow on the regulator must also decrease. Meanwhile, if the system pressure increases, the flow on the regulator must increase to keep the maintained pressure from going down due to a shortage of gas in the system. A pressure-reducing valve includes three elements:

    3. High-pressure Flow Control Valve

    A high-pressure flow control valve is used to regulate the pressure or flow of a fluid by responding to signals made by independent components, such as temperature gauges and flow meters. It is used in a particular portion of a hydraulic circuit and widely employed in various industries, such as oil and gas, water and wastewater treatment, and processing plants.

    There are several valves used for flow control including ball valves, diaphragm valves, butterfly valves, needle valves, and plug valves.

    A simple flow control valve has an aperture that opens and closes to slow down or increase the flow rate. SIO ball valve is one of the simplest flow control valves that has a ball with a hollow center attached to the handle. When the handle is turned, the hollow center is aligned with the valve openings to allow flow. To shut the flow again, the handle is turned so that the hollow center is perpendicular to the valve openings.

    Other types of valves have similar working mechanisms in allowing and obstructing flow. A butterfly valve has a metal plate that adheres to a turning mechanism that allows it to open and close. A needle valve consists of a needle and stem that allows or obstructs flow. This valve type provides more precise flow control as the needle can be adjusted to partially or completely obstruct or permit flow.

    4. High-pressure Solenoid Valve

    A high-pressure solenoid valve is an automatic valve used when fluid flow needs to be controlled automatically. It is often used in various types of plants and equipment in oil and gas, food and beverages, chemicals and petrochemicals, and cosmetics industries among others.

    There are seven ways on how a solenoid valve works, each of which has a different mode of actuation.

    7 Ways a Solenoid Valve Works

    A direct-acting solenoid valve has a seat seal that attached to the solenoid core. When energized, the solenoid valve will open and when de-energized, the solenoid valve will close.

    A two-way solenoid valve is a shutoff valve that has one inlet port and one outlet port. When energized, the core spring and seal are drawn into the solenoid coil causing the valve to open. When de-energized, the core spring, with support from the fluid pressure, secures the seal on the valve seat to obstruct media flow.

    A three-way solenoid valve is made up of three port connections – cavity port, stop port, and body orifice port and two valve seats – body orifice and stop orifice. In this structure, one seat remains open and the other closed in a de-energized mode. When energized, the valve seats will trade positions. This allows for two paths of media flow.

    When de-energized, the plunger or handle is down which seals the body orifice and opens the stop orifice permitting flow to go through from the cavity port and out the stop port. When energized, the plunger is up which seals the stop orifice and opening the body orifice allowing media to go through it and out the stop port.

    A direct-acting solenoid valve has a static pressure force that increases when the diameter of the orifice increases. This means that the magnetic forces required to endure these pressure forces become significantly larger.

    An internally-piloted solenoid valve is used to switch higher pressures of larger sizes of orifices. In this valve type, the differential fluid pressure does the primary work of opening and closing the valve.

    An internally-piloted two-way solenoid valve is equipped with either a two-way or three-way direct-acting solenoid valve. It has a piston or diaphragm that creates a seal for the main valve seat and an internal pilot to open larger orifices without increasing the size of the solenoid.

    When the valve is closed, the media pressure increases on both sides of the diaphragm through a bleed orifice. As long as there is pressure differential between the inlet port and outlet port, a shutoff force is ready through a larger area on top of the diaphragm. When the valve is open, there is pressure relief from the upper side of the diaphragm.

    An internally-piloted multi-way solenoid valve is made of four port connections – a pressure inlet, one exhaust port connection, and two cylinder port connections. It operates similar to an internally-piloted two-way valve but generally for operating with double-acting cylinders or actuators.

    An externally-piloted solenoid valve uses an external source of air pressure and has an independent pilot device to actuate it. The pilot device is normally mounted at the top of the actuator.

    5. High-pressure Bleed Valve

    A high-pressure bleed valve is used to bleed or vent the system in a safe and secure manner for different applications, such as removal of equipment, scheduled maintenance, and calibrating control devices. A bleed valve is commonly used in complex systems in water services, petrochemicals, and oil and gas industries.

    A high-pressure bleed valve normally works with isolation valves, such as ball valves, and are used to isolate or block the area that requires work to prevent media from the upstream line from reaching the downstream line. Once the bleed cavity is secured, the bleed valve will then vent the trapped media to ensure safe working on the depressurized area.


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