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Check Valve

Check Valve

Size:DN 50 to DN 1500,2″ to 48″ ,Full  port,Regular
Pressure Rating: Classes 150 to Class 2500
End flange connection:ASME B16.5 (2” to 24”), ASME B16.47 Serie A or B (26” and above)
Face to Face:ASME B16.10,API 600,BS 1868,API 6D
Butt weld ends:ASME B16.25
Design Standard:ASME B 16.34,API 600,BS 1868,API 6D,API 600
Temperature Range:-196°C to +500°C
Body Materials:ASTM A216 Gr. WCB, SA-217 Gr. WC9, SA-217 Gr. C12A, SA-351 Gr. CF8M Other materials available upon request
Trim material:Trim 5, 8, 12, 16, and Special Materials
Certificates:API 600 and API 602 Monogram,API 607/API 6Fa fire safe,API Q1,Certificat f Works Approval,EAC,SIL,CE

Check valve can be made up of one port, the other port allowing fluid to go back and forth between two points on the body. The crack pressure is crucial when the valves are used. The body shells containing most ‘check valves’ make up most plastic or metal. These valves work automatically and most are not operated by a person or internal control; hence most has neither a handle or stem. They are available in wide variety of size and cost, usually are very small simple and cheap.Your perfectly optimized content goes here!

Check valves are basically valves with an override that can stop the flow direction of water in a pipe. When the pressure is too low, check valves will close automatically. our check valves are designed for highly-dynamic applications with high flow velocities, reverse flow pressures up to 100 psia, and minimal/zero pressure reversal on liquid surfaces.

Swing Check Valve for Commercial and Industrial Applications
Swing Check Valve Finds Use in Various Industries

How do valves work?

Check valves are  device which enables fluids in an only direction. They have two ports one for incoming media and one for receiving media. They are commonly installed in applications which caused backflow issues. It requires a higher pressure in the input side of the valve than in the output side to open the valve. When the volume on the discharge side is increased the valve closes. Contrary to other types of valves they don’t require a handle lever or human for a correct operation. There are various sizes shapes and materials so that there are checks for every application.

Swing check valves

A check valve is a device which enables fluids in an only direction. They have two ports one for incoming media and one for receiving media. They are commonly installed in applications which caused backflow issues. It requires a higher pressure in the input side of the valve than in the output side to open the valve. When the volume on the discharge side is increased the valve closes. Contrary to other types of valves they don’t require a handle lever or human for a correct operation. There are various sizes shapes and materials so that there are checks for every application.

Swing check valve is used to prevent the backflow of fluid in pipe systems.
Swing check valves are easy to install, resist corrosion, and are highly reliable.

Check valve Specification

The valve is a device which enables fluids in an only direction. They have two ports one for incoming media and one for receiving media. They are commonly installed in pumps which caused backflow issues. It requires a higher pressure in the input side of the valve than in the output side to open the valve. When the volume on the discharge side is increased the valve closes. Contrary to other types of valves they don’t require a handle lever or human for a correct operation. There are various sizes shapes and materials so that there are checks for every application.

Which type of check valve is right for you?

Check valves are an essential component to any residential or industrial piping installation. Use to maintain control of the flow while maintaining the proper operation of the system. The pressure from the fluid flowing through the piping system opens the valve while all flow-reverse operation closes it. Tell me the appropriate type of valve? Below you find some information about the most common types of check valves with varying operations and uses to help you know what type of valve you should use in your piping. There is wide range check valves types and main model.

Check valves are an essential component to any residential or industrial piping installation. Use to maintain control of the flow while maintaining the proper operation of the system. The pressure from the fluid flowing through the piping system opens the valve while all flow-reverse operation closes it. Tell me the appropriate type of valve? Below you find some information about the most common types of check valves with varying operations and uses to help you know what type of valve you should use in your piping. Check valves run simply.There is wide range check valves types and main model.

Spring Loaded Check Valves

A spring loaded check valve is a specialized kind of safety device used for controlling water flow through pipes. It is designed to release water in an emergency by opening in response to pressure from outside of its housing. Spring loaded check valves have a number of different configurations and uses.

The spring loaded check valve is composed of several springs that are trapped between two plates: one plate that contains holes and another plate with projections that push against each other when pressure is applied. Pressure from outside forces these two plates outwards until they come into contact with each other and force each side’s springs upwards.

Pison(Lift) Check Valves

A piston check valve is a type of spring loaded check valve that has a piston inside of it. This piston pushes the check valve closed when pressure is released so the fluid cannot escape. This type of check valve can be used to regulate and control flow rates as well as create pressure in different parts of pumps and valves.

Lift check valves are used in the booster pump system to check and prevent lifting of the water. They are usually a rotary valve with one closed end and one open end, and they open as soon as the water pressure increases.

Piston Check Valve - A Simple Solution for oil and gas
Piston check valve is a simple solution for oil and gas.

Lift check valves are usually made up of a lift rod, spring seat, spring, diaphragm, washer, H shaped wire coil spring and piston rod connected together by a pin.

The purpose of lift check valves is to prevent lifting of the booster pump because it can happen when there is an increase in pressure or flow rate.

Piston check valve is a type of valve that allows the flow of liquid in one direction and prevents the flow in the opposite direction. It is also known as a piston check valve because it has a very small diameter and a large height.

Spring load check valves are commonly used to prevent fluid flow in specific areas called control valves. For example, in a steam boiler, the spring load check valve is used to stop the flow of water in case of emergency.

Ball Check Valves

Ball check valves are used in pipework systems to control the flow of a liquid or gas. They are normally fitted using a valve and when activated, they close the piping system under specific conditions.

Ball Check Valve for Chemical and Petroleum Industries
Ball Check Valve for Chemical and Petroleum Industries

Ball check valves are commonly found in industrial applications where they have to be operated manually. These valves have been installed over the years due to their simplicity and reliability.

The ball check valve has been used for more than 100 years and is still widely used by industry experts today because of its ability to operate under high pressure without wearing out easily.

Swing Check Valves

Swing check valves use a disk within a valve to stop or allow movement of the system. A valve disk must open when the liquid reaches its proper angle and stay open to allow the liquid to pass. They are most often used to prevent flooding in sewage systems and in fire fighting applications. Swing check valvess come in a broad selection of material types including cast steel,stainless steel,forged steel. They are in systems where liquids are moved like water or other liquids as well as other types of materials in these systems.

A swing check valves is a valve that lifts into a counter-clockwise position in order to close, and then slides down into an opening position in order to open.

It is important for the swing check valves to be able to lift up and down with easy movement for effective use in different water pressures.

Wafer Check Valve

Wafer Check Valve is a check valve designed to meet the highest demands for performance, safety and reliability.A wafer check valve is a disc fitted with a radial flow passage, typically in the form of two blades. It is mounted in at least one opening in the valve housing and is open to the atmosphere so that when pressure on the disc swings it can be closed or opened to stop, change or regulate flow.

wafer check valve is used in water distribution systems. The valve is a wafer style valve that is easy to install and has a long service life.
Wafer check valve is used for on-off control of flow in a piping system.

The design of these valves enables them to be fitted in extremely tight spaces and also prevents them from being damaged by an over-pressurization event. This is important for a wide variety of applications, such as water, gas and oil pipelines.

This type check valves are a preferred choice for all types of man-made and industrial liquid applications. The check valve is a self-centering, non-return valve which prevents backflow and has the capability of opening at higher pressures and high temperature industries.

Tilting Disc Check Valves

Along with being easy to use, the tilting Disc Check Valve is versatile. It is great for gas and oil applications especially in high flow positions.This valve is a way to save energy over the course of time. It allows for low head loss–low friction–and a large flow area, which means faster movement and smooth operation at every phase in its cycle.Double wafer check valves consist of two discs, two discs are movable, that come together when the pressure on one side exceeds the pressure on the other. This pressure differential allows it to be used as an on-off valve for various applications.

The tilting disc check valve is a special type of check valve that has a cone shaped metal disc that pivots on a central fulcrum.
Tilting Disc Check Valve – for Pumps, Valves, and other Hydraulic Applications

Tilting disc valves are a type of check valve, which is used in water systems to control the flow of fluids. This type of swing check valve can operate at lower flow pressure and close quickly, using a dome-shaped disc spring loaded to make the valve close quicker than a common check valve.

Nozzle Check Valve

These valves are easy to install and eliminate water hammering and possible pipe damage caused by leaks. The Nozzle Check Valve is a durable, reliable, cost-effective solution that prevents water hammering.

Materials of Check Valves

Stainless steel

Check Valves are suitable for use in low-pressure service. It is mainly used for draining mud, water, oil or any other liquid. Check valves can direct flow in one direction when it is open and the flow can also be completely blocked when it is closed.Stainless steel material available including ss304,ss 316,A351 CF8,A351 CF8M ,A351 CF3,A351 CF3M etc

Cast steel

check valves are a cast steel material valve,we can make it according to your requirement with the shape you want ,such as A A216 WCB,A A352 LCB,A A352 LCC etc

Forged steel

Forged steel is a quality of steel which has been created using a process called forging. Forging creates a hard metal with extreme strength and durability.

A105 ,A350 LF2,A182 F304,A182 F316 etc.

Application Specification

check valves are one of the most popular construction equipment in the world. It can be used to prevent any leakage, such as water, oil or gas from flowing back into a system by closing a system .

Design manufacture

check valves styles& API standards are available. You can choose exactly what you need to meet your standards. Our API 594, BS 1868, and API 6D check valves are normally available.

Face to Face

ASME B16.10 is the most commonly used standard for the American Society of Mechanical Engineers (ASME). It classifies piping systems by their respective working pressures and temperatures. These standards are used to provide designers with all the necessary information they need to design piping systems for various applications.Our Valve Face to face accdording to ASME B16.10.

End flange connections

ASME B 16.5 JIS B2212~B2214

Valve Check and test

Valve tests and checks their products according to API 598 which ensures that all of their products are of the highest quality. Not only does this benchmark ensure Valve’s high standards are met, but it also provides peace of mind for customers who are looking to buy Valve products.

Check Valve Application

Check valves are used in a variety of different areas and are an essential part of any industrial plant. Check valves help to ensure that a system does not allow any liquid to move in one direction, while tightly restricting the fluid moving in the opposite direction.

The Check Valve Application quickly and easily allows you to create a corrosion-preventing check valve that will allow clean water to flow through the valve while preventing any backflow or leakage.

A check valve is a device installed at the outlet of a pipe to prevent backflow or leakage. The Check Valve Application quickly and easily allows you to create a corrosion-preventing check valve that will allow clean water to flow through the valve while preventing any backflow or leakage.

The check valves are devices that can be used to control the flow of medium in pipelines and other piping systems. Check valves are installed in low-pressure pipes, such as water supply lines, to prevent backflow into higher-pressure pipes. The pressure difference between the two types of pipes is caused by a difference in height (h), which creates back pressure. A check valve is a device used to control the flow of fluid in a pipe or hose. It is mainly used to permit the passage of fluid in one direction and restrict the opposite direction.

A cracking pressure is a pressure that, when applied to material, causes it to crack by relieving internal stresses. This means that a crack may be initiated by lab tensile or compressive strain or elastic force.

In check valves systems, cracking pressure is a sign of a problem and it should be prevented at all costs because it could lead to disaster.

Pressure in check valves systems is often expressed as a differential pressure or internal force and it usually has to do with surface area and velocity inside the system and stress concentration factors.

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