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What is hydraulic pressure reducing valve? This is a self-contained and automatic pressure reducing valve that operates by use of hydraulic fluid. This valve is used to reduce high fluid pressure to consistent and usable pressure. This valve consists of a flexible diaphragm that controls the valve via an interconnected pin and a compression spring. The spring is loaded via …

What is adjusting pressure reducing valve? This is a pressure-reducing valve that can be adjusted to vary the fluid pressure as necessary. This is a pressure control valve. Adjusting pressure reducing valve manufacturers produce this valve for use in different applications where it ensures constant reduced pressure in a piping system. It helps to correct fluid flow pressure which then …

What is PRV valve?  PRV means pressure reducing valve. A PRV valve is a control valve used to reduce high unregulated inlet pressure to constant outlet pressure despite the fluctuations in the upstream pressure. A PRV valve reduces excess pressure in a piping system. This valve is also known as pressure reducing regulator. PRV valves are used in applications such …

What is a wafer butterfly valve?  This is a butterfly valve that is sandwiched between two pipe ends. The pipe ends are in terms of flanges with holes. Long bolts are used to surround the valve body to hold it firmly in its position. The bolts cross the whole valve body. Wafer butterfly valve manufacturers design this valve with or …

What is a manual butterfly valve?  This is a butterfly valve that is operated using a handwheel or hand lever. A valve operator is needed to start and stop the valve. This valve works by turning the handle which then turns the disc so that it can open or close the fluid flow as necessary. The opening and closing operations …

What is an electric actuated butterfly valve?  This is a butterfly valve that is operated using an electric actuator. It is a quarter-turn valve that uses a rotary disc to start, throttle or stop fluid flow through a piping system. The rotational disc is mounted on the fluid passageway. This disc is controlled by the electric actuator via a shaft …

What is stainless steel butterfly valve?  A stainless steel butterfly valve is a valve that is made of stainless steel material. Although this valve is made of steel, other internal components like seats, seals, O-rings, and gaskets can be made of different materials like plastic, rubber or other material. The type of material used to make those internal components determines …

What is a flanged butterfly valve?  This is a butterfly valve that is designed with flanges on both inlet and outlet faces. A flange is a flat surface that makes a connection between a valve and the pipe very easy and free from leakage. Butterfly valve flange type has its flanges with holes. The pipe end to be connected to …

What is a pneumatic butterfly valve?  This is a butterfly valve that operates using a pneumatic actuator. A pneumatic butterfly valve uses compressed air to open and close the valve. These valves are under the category of quarter turn valves. As such, the valve disc makes a quarter turn angle to start or stop fluid flow. Pneumatic butterfly valve manufacturers …

What is a lug butterfly valve?  This is a valve designed with threaded lugs outside the body. These threaded lugs are used to contain bolts used to connect the valve to the pipeline. This type of valve is installed into the piping system by placing it in between two pipe flanges. A tight seal is enhanced by mounting a gasket …

What is gear operated butterfly valve?  This is a manual butterfly valve that uses gears to enhance torque multiplication. Gear-operated butterfly valves have the gear system connected to the handwheel through a short shaft. This allows the torque applied by the valve operator to go direct to the gear system. The torque is then multiplied through a system of gears …

What is a double-flanged butterfly valve? This is a butterfly valve designed with two flanged ends on the inlet and outlet ports of the valve. This type of valve is installed in a pipeline that has flanges. The flanges on the pipeline must have the same size as those on the valve. Double flanged butterfly valve manufacturers produce these valves …

What is a motorized butterfly valve?  This is a butterfly valve that is powered by an electric motor. The closing and opening of fluid flow are performed by a component known as a valve disc. This type of valve makes a quarter turn of the valve disc to start or stop fluid flow. As such, it is referred to as …

What is wafer-type butterfly valve? Wafer type butterfly valve is a type of valve which used for on and off application in different industrial applications. The valve is placed between two pipes and bolts are used to connect the valve and the pipes. This type of valve is also known as wafer style butterfly valve. Wafer-type butterfly valve manufacturers design …

What is lug type of butterfly valve?  This is a valve designed with lugs that have threads on the valve body flanges. Lug type butterfly valve is connected to the pipe using bolts. The bolts are inserted through the threaded lugs. Lug butterfly valve manufacturers use this design so that it is easy to disconnect one end without affecting the …

What is a gas plug valve?  This is a type of plug valve that is used in transporting gaseous and flammable products such as natural gas, steam, LPG, and chemical vapors. Gas plug valve manufacturers design this type of valve with a handwheel or valve actuator. The handwheel is used where the valve is to be manually operated by a …

What is an eccentric plug valve?  This is a type of plug valve designed with a half plug. This type of valve is suitable for use in applications that need minimum friction and high seat forces from the open to the closing position. Eccentric plug valves are used in a variety of applications such as air, slurries, sludge, and clean …

What is a Y-check valve?  This is a check valve which is a modification of a standard check valve in which the valve disc/ball is mounted at an angle to the axis of the pipe. This angle of the disc to the pipe creates a valve of Y-shape. As such, it was named the “Y-check valve”. This type of valve …

What is a small check valve?  As the name suggests, a small check valve is a small sized valve used to prevent reverse fluid flow. Reverse fluid flow occurs in the piping system when the pump is turned off or there is backflow. Fluid flowing in the backward direction can lead to contamination or damage to the boiler and pump. …

What is a dual plate wafer check valve?  A dual plate check valve is a type of valve designed with two plates that are used to prevent reverse fluid flow. Reverse flow happens in the piping system when the pump is turned off or when there is backflow. Dual plate wafer check valve manufacturers design this type of valve for …

What is a non-return flap valve?  A non-return flap valve is a type of valve used to allow fluid flow in one direction. The fluid flow is allowed to proceed in the forward direction only and whenever fluid attempts to flow back the valve closes. The opening or closing of the valve depends on the pressure difference between the inlet …

What is wafer type NRV?  Wafer type NRV means wafer type non-return valve. This is a type of valve used to prevent reverse fluid flow in different industrial applications conveying fluids such as liquids, slurries, gases, vapors, and steam. Wafer-type NRV manufacturers design this type of valve without a valve handwheel or actuators. The valve operates automatically based on pressure …

What is a flanged check valve?  This is a check valve designed with flanges at the end of the ports. Flanged check valves are used to prevent reverse fluid flow in different applications. These valves operate automatically using the pressure difference principle in which they open when the inlet fluid pressure is high like when the pump is on and …

What is a tilting disc check valve? A tilting disc check valve is a type of valve meant for preventing reverse fluid flow. The flow of fluid in the reverse direction can damage piping fixtures like pumps, and boilers or cause contamination of the fluid. The tilting disc check valve is designed with a disc as the opening and closing …

What is a stainless steel check valve?  A stainless steel check valve is a valve made of stainless steel material and which is made for use in preventing reverse fluid flow. Fluid flows in the reverse direction when the pump is turned off or when the suction pressure reduces. Fluid in a piping system flowing in the reverse direction can …

What is a nozzle check valve? A nozzle check valve is a type of valve used to prevent reverse fluid flow and also prevent water hammer and related effects. Nozzle check valve manufacturers design these valves for applications in which liquid, gas, or slurry media can be transferred. Nozzle check valves are meant to close quietly and quickly when the …

What is a butterfly check valve?  A butterfly check valve is a type of valve that is used to prevent reverse fluid flow in different applications. These valves employ a seating arrangement similar to that used in butterfly valves. Butterfly check valve flow characteristics are similar to the flow characteristics in butterfly valves. As such, these valves are often used …

What is a single check valve?  This is a check valve designed with a thin plate at its middle section. This type of valve is used to prevent reverse or backflow of fluid. A single check valve operates automatically using pressure differential and thus it saves on the cost of having a valve actuator and or handwheel. This helps to …

What is a disc check valve?  A disc check valve is a type of valve that uses a disc component to open and close fluid ensuring no fluid can flow in the reverse direction. This type of valve works based on pressure difference in which inlet pressure needs to be high enough to provide energy needed to open the valve. …

What is a wafer-type check valve?  Wafer type check valves are valves that are used to prevent fluid from reversing in a piping system. These valves are named “wafers” because of their thin and compact size, unlike other check valves. Wafer type check valves are automatic and thus they do not need a valve actuator or valve operator. Wafer type …

What is a spring-loaded check valve?  A spring-loaded check valve is a type of valve that is used to prevent reverse fluid flow in different industrial applications. A spring-loaded check valve is also known as a spring-loaded non-return valve. The name comes from the fact that these valves are ideally meant for ensuring fluid flows in one direction only and …

What is a silent check valve?  A silent check valve is a valve used to prevent reverse fluid flow. Also, this valve helps to prevent water hammer problems and its related effects. A water hammer is a shock wave of high pressure that occurs when fluid flow is stopped abruptly due to either the valve disc closing or the pump …

What is a flapper check valve?  This is a check valve that uses a tilting disk to open and close the fluid flow. The fluid flows from the inlet through the disk and leaves the valve through the outlet valve. The disk is fixed at one end and the other end is free. The fluid pressure forces the free end …

What is a stop check valve? Stop-check valves are valves used as either shut-off valves or as check valves. This type of valve is made the same as a normal check valve but it has a control mechanism such as a handwheel, lever, or actuator. This control mechanism helps in closing the valve irrespective of the fluid pressure level. Stop …

What is a Lift check valve? A lift check valve is a type of check valve which is used to prevent fluid from flowing backward. If the fluid attempts to flow backward it is blocked. Lift check valves are one-way valves meaning they allow fluid to flow in one direction only. Lift type check valve is suitable for use in …

What is a dual check valve?  A dual check valve is a special type of check valve which is used to prevent reverse flow of fluid. This type of valve consists of two automatic, spring-loaded check valves that work together to prevent reverse fluid flow and thus prevent fluid contamination and damage to piping equipment like pumps. The dual check …

What is a wafer check valve? A wafer check valve is a type of check valve that has a butterfly or wafer-type disk used to open and close fluid flow. A wafer check valve has two ports that is the inlet and outlet port. The valve opens when the inlet side pressure becomes more than the cracking pressure. When the …

What is a spring check valve?  A spring check valve is a type of check valve used to prevent fluid flow from reversing direction. Spring check valves are one-way direction flow and they are automatic. Spring check valve manufacturers design these valves with one inlet and one outlet port. The spring check valve is also known as a spring non-return …

What is NRV valve? NRV valve in full means non-return valve. NRV valve is also known as a one-way valve or check valve. This is a type of valve that allows fluid to flow in one direction only. These valves work by opening when fluid flows forward but it closes when the fluid flows backward or when the fluid tries …

What is a double check valve? A double check valve is a type of valve that is used to prevent the backflow of fluid in water supply systems. Preventing the backflow of water helps to prevent contamination. A double check valve is made up of two check valves that are assembled in series. One of the check valves works even …

What is a non-return valve? A non-return valve is also known as a check valve. This is a valve that is used to prevent fluid from flowing backward in a pipeline. A non-return valve is also known as a one-way valve. This is because non-return valve manufacturers design these valves such that fluid flows in one direction only. Non-return valves …

What is a cryogenic globe valve? A cryogenic globe valve is a type of globe valve which is meant for use in very cold applications. These valves are mostly used by companies that work in compressed natural gas or liquefied natural gas for throttling, opening or closing fluid flow. Cryogenic globe valve manufacturers design these valves in a way that …

What is a Y pattern globe valve? Y pattern globe valve is a type of globe valve which is used to regulate, open and close fluid flow. These valves are also known as oblique pattern globe valves. The design of a Y pattern globe valve is such that the seat and stem are oriented at 45o degrees to the axis …

What is a steam globe valve? A steam globe valve is a type of globe valve which is meant for use in controlling the flow of steam. Steam globe valves are used for throttling, opening, and closing fluid flow. These valves are also used to control flow of steam pressure. Steam globe valves are used in different applications such as …

What is a stainless steel globe valve? Stainless steel globe valve is a type of globe valve that is made of stainless steel. This type of valve is meant for throttling, opening or closing fluid flow. The stainless steel globe valve manufacturers mostly use stainless steel material to make the body, bonnet, disc and stem. This helps to make the …

What is a resilient wedge gate valve? A resilient wedge gate valve is a type of valve that has a disc insert in the shape of a wedge that sits between two inclined seats. This type of gate valve uses a wedge-shaped disc constructed from strong metallic material and lined with elastomer materials such as. Resilient wedge gate valve manufacturers …

What is a double-disc gate valve? A double-disc gate valve is also known as a parallel double-disc gate valve. A double-disc gate valve is a type of gate valve which has two discs and two seats. The disc in a double-disc gate valve are used to open or close fluid flow. The two-disc expand from each other when the valve …

What is a through conduit gate valve?  Through conduit gate valve is a type of gate valve which is designed such that fluid flows straight from the inlet to the outlet port. Through conduit gate valve manufacturers design these valves for on and off applications. If the through conduit gate valve is used for throttling applications it does not provide …

What is a parallel slide gate valve?  A parallel slide gate valve is a type of gate valve which uses two gates or discs to close or open fluid flow. Parallel slide gate valve manufacturers design these valves with a disc holder used to connect the two gates. These valves are meant for use in on and off applications. Parallel …

What is a knife edge gate valve?  A knife edge gate valve is a type of gate valve which is meant for closing and opening fluid flow as well as isolation services. These valves have the word “knife” in their name because they can cut through slurries. Knife edge gate valve manufacturers design these valves for use in different types …

What is a Ductile Iron Gate valve? A Ductile Iron Gate valve is a type of gate valve which is made using ductile iron material. Ductile iron is also known as nodular cast iron or ductile cast iron. Ductile Iron Gate valves have high fatigue and impact strength due to use of ductile iron material. Ductile Iron Gate valves are …

What is API 600 gate valve? API 600 gate valve is an on and off type of gate valve used. This valve is used for opening and closing the flow of fluid in a pipeline. API gate valve is a bidirectional flow valve. This means that the flow of fluid through the valve can take place in either direction. API …

What is OS&Y valve?  OS&Y valve means outside screw and yoke or outside stem and yoke valve. OS&Y valve is a type of gate valve. OS&Y valve works by using a gate that closes and opens fluid flow through the valve. OS&Y gate valve manufacturers designs working principle is lower or raise the gate to close and open fluid flow …

What is OS&Y gate valve?  OS&Y gate valve is a type of rising stem gate valve. OS&Y gate valve means outside screw and yoke or outside stem and yoke gate valve. In an OS&Y gate valve it is easy for the valve operator to know when the valve is in a closed or open state. This is because when OS&Y …

What is fire safe ball valve?  Fire-safe ball valves are valves designed to reduce downstream leakages and fugitive emissions in case they are exposed to high-temperature fires. Because most of the valves are made up of non-alloy materials for sealing, they have to maintain functionality even at high temperatures or fail in a predictable way that differentiates fire-safe ball valves …

What is a ceramic ball valve? A ceramic ball valve is a type of ball valve which has internal components made of ceramic materials. Such ceramic components include ball, seat, and lining. A ceramic ball valve has its body made of a metallic material such as stainless steel or carbon steel. The metallic body is used to protect the ceramic …

What is a jacketed ball valve?  Jacketed ball valves are ball valves that have jackets that help in heating or cooling the flow media to prevent seizing or crystallization. Jacketed ball valves for heating applications have good heating jackets to provide high-temperature oil or steam over the valve body and ball parts to keep the media in the required state. …

What is a high-temperature ball valve?  High-temperature ball valves are valves that can work at very high temperatures above 400 oC. High-temperature ball valves should be made of very strong metallic materials that have high melting point. Some metallic materials such as aluminum alloys start weakening as the temperature increases. Materials like bronze is not recommended for use as a …

 What is a rising stem ball valve?  The rising stem ball valve is a type of ball valve with a long stem that rises above the body of the valve. A rising stem ball valve is used for on and off fluid flow applications. Rising stem ball valves are mostly all-metal and fireproof. Rising stem ball valves have wide range …

What is API 6D ball valve?  API 6D is a valve specification given by the American petroleum institute. This API 6D standard covers the design and manufacturing, testing, and documentation of pipeline ball valves for pressure ratings. API 6D ball valve means that it is a ball valve that meets the design, manufacturing, and testing specifications of the API 6D …

What is a reduced bore ball valve?  A reduced bore ball valve is a type of ball valve with ball bore diameter less than the pipe diameter. In a reduced bore ball valve, the area of fluid flow is narrower downstream at the outlet. As such, there are frictional losses introduced in the valve resulting in pressure drop. In reduced …

What is a V port ball valve?  A V port ball valve is a type of ball valve with a V-shaped ball bore or V-shaped valve seat. A V-port ball valve has the advantage of being used as a control valve which is not common in most ball valves. The main difference between a V-notch ball valve and other ball …

What is a socket weld ball valve?  A socket weld ball valve is a type of ball valve with socket weld. A socket weld is a recessed area of the ball valve where a pipe is inserted. Socket weld ball valves are made of steel for applications involving higher pressure and higher temperatures that do not need disassembling. Socket weld …

What is a metal seated ball valve?  Metal seated ball valves are valves designed with metal to metal seal between the ball and the seats. Metal seated ball valves are meant for use in applications of corrosion, abrasion, high pressure, or high temperature. Metal seated ball valves enhance a tight shutoff in both bi and unidirectional fluid flow in severe …

 What is a lockable ball valve?  A lockable ball valve is a type of ball valve with a lock mechanism. As the name suggests, a lockable ball valve uses a hollow ball and locking mechanism to control fluid flow and lock the valve in an open/closed position. The hole in the valve ball is where the fluid flows through in …

What is a full-port valve?  The full-port ball valve is also known as a full-bore ball valve. A full-port ball valve is a type of ball valve with a larger body than a standard ball valve. With a larger body, a full-port ball valve houses a larger ball as well as larger openings. Full-port ball valves have their openings the …

What is a ball valve with drain?  A ball valve with drain is a type of ball valve with a tap for releasing excessive or unwanted amounts of fluid from a vessel or pipeline. A ball valve with drain is opened by rotating a handle. When the ball valve with drain is opened, the fluid drains from the vessel due …

What is a three-piece ball valve? A three-piece ball valve is a type of ball valve with three pieces which are the body, and two end caps. The end joints or end caps are joined to the pipeline by threading, using bolts and nuts, or by welding. The three pieces are connected together using bolts and nuts which makes it …

What is a pneumatic ball valve?  A pneumatic ball valve is a type of ball valve that uses a pneumatic actuator. This type of valve is suitable for on and off applications. Pneumatic ball valves are quick to operate which helps to save time. Pneumatic ball valves can be automated or semi-automated depending on your preferences. The working of a …

What is a high-pressure ball valve?  A high-pressure ball valve is a ball valve that can operate at more than 500 psi without the valve body getting damaged. High-pressure ball valves use a ball with a hole at its center to open or close the fluid flow. The ball makes a quarter turn or 90o angle to either allow or …

What is a gas ball valve? The gas ball valve is a type of ball valve that is meant for use in gaseous applications. Gas ball valves are mostly two-piece ball valves. Gas ball valves must meet certain standards for them to be used in combustible gas applications. A gas ball valve is known for delivering better performance than other …

 What is a motorized ball valve?  A motorized ball valve is a type of ball valve that uses electricity to operate. This type of valve uses a perforated, hollow, and turning ball to control fluid flow. Motorized ball valves have the ball with a hole at the center. An electric motor is used to control the position of the ball …

What is an electric ball valve? An electric ball valve is a type of ball valve that is operated using electric actuator. As the name suggest, the actuator used in electric ball valves is electric actuator. This is an actuator which is powered by electrical energy. This type of ball valve employs a hollow ball which when it turns 90o …

What is a cast-iron gate valve?  A Cast iron gate valve is a gate valve whose body and bonnet are made of cast iron material. Cast iron gate valves have been in use for hundreds of years. Cast iron gate valve has excellent resistance to temperature since it can withstand high temperatures of around 1150 oC. Cast iron gate valves …

What is stainless steel gate valve?  A stainless steel gate valve is a type of gate valve which is made entirely of stainless steel material. A stainless steel gate valve is known for its high strength. With that high strength, these valves are suitable for high pressure and high-temperature applications. Stainless steel gate valves are also known to be made …

What is a three-way valve?  A three-way valve is a valve that has three ports. These valves are commonly used in different applications to mix or divert fluids. When used to mix fluids, two fluid streams combine to form one outgoing stream. When used to divert fluid, one fluid stream is separated into two outlet streams. A three-way valve is …

Butterfly valves are commonly used in many industries, such as petroleum, chemicals, metallurgy, power and water industries, as it is used to restrict and control the flow in the system pipelines. In the conventional butterfly valve technologies, a seal coated/lined with rubber, PTFE, etc. is used as a closure member to restrict the flow of fluid. Owing to structural constraints, …

Valves are devices used to regulate fluid flow, pressure, and flow direction. Regulated fluid can be a liquid, a gas, a gas-liquid mixture, or a solid-liquid combination. The valves normally consist of the body, cover, valve seat, opening and closing components, driving mechanism, seals, and connectors. The control function of the valve is obtained by means of a driving mechanism …

The pneumatic ball valve is a pneumatic actuator-equipped ball valve. With the fastest operating speed of 0.05 seconds per second, pneumatic actuators operate very rapidly, so they are typically often called pneumatic fast plugging ball valves. In order to complete in-site control and remote centralized control, pneumatic actuated ball valves are normally fitted with different accessories, such as solenoid valves, …

The globe valve and the gate valve have a certain similarity in appearance, and as both valves have the role of cutting off in the pipeline, so the people always ask what the difference is between the globe valve and the gate valve? 1. The variation in the working principles of globe valve vs gate valve. Whenever the globe valve …

In normal conditions, industrial valves are not subjected to a strength test while in operation, but after maintenance, the corrosion-damaged valve body and cover may be subjected to a strength test. In the case of safety valves, steady pressure, return pressure and other checks should meet with the standards and associated regulations.  The valve strength test and the valve sealing …

Industrial Valves have some problems during operation, e.g. the valve is not closed tightly. What am I supposed to do? In normal circumstances, if the valve is not completely closed, first check to see if the valve is closed in place. If it has been closed in place, and the leakage persists, then check the sealing surface. If it is …

Regulating valves are often referred to as control valves. It accepts the control signal output from the adjustment control unit in the area of industrial automation process control and uses power operation to alter the final control element of process parameters such as medium flow, pressure, temperature, and liquid level. It normally consists of a drive actuator and a valve. …

Valve corrosion is commonly viewed as damage to the metal material of the valve under the effect of a chemical or electrochemical environment. Since the “corrosion” occurs in the spontaneous reaction between the metal and the surrounding environment, the prevention of corrosion focuses on how to separate the metal from the surrounding environment or use more non-metallic synthetic materials. Here …

Flange Ball Valve is a control component in the piping flow system used to cut off and distribute the direction of the medium flowing in the pipeline. In operation, a rotation of 90 degrees with a small torque is sufficient to close the valve tightly. Flanged ball valves are made of metals such as carbon steel, stainless steel or brass, …

Valves are the control component in a piping flow system. The main functions include: – Isolating equipment from the piping. – Regulating the flow rate. – Preventing backflow of liquid. – Regulate discharge pressure in the piping system.   Valves can be used to control the flow of all kinds of fluids such as air, mud, oil, water, steam, liquid …