Many types of check valve can be made from different materials, such as brass check valve, stainless steel check valve, PVC check valve, and cast iron check valve, depending on the application and the fluid or gas properties.
They also known as non-return valves or one-way valves, are mechanical valves that allow the fluid or gas to flow in one direction and prevent backflow. This type have a disc or a ball that rests on a seat, which closes the valve when the flow stops or reverses direction.
Farpro Valve manufacturers offer a wide range of general-purpose check valves and most specialty non-return valves to many industries and businesses. We guarantee the best quality of check valve products while keeping the sales price as low as possible. Our Check valves do not necessarily have the lowest price, но определено ще бъдем най-честният производител и вашият най-верен партньор.
Types of Farpro Check Valves
With a pass rate of over 93% при единични тестови изпълнения, our check valves are consistent and accurate, a result of our commitment to utilizing the latest technology and machinery, and adhering to strict quality control measures during the manufacturing process.
We also prioritize timely delivery of our products, with a delivery rate of over 99%. We understand that project timelines and schedules are crucial, and we strive to ensure that our valves are delivered on time to meet our customers’ needs.
Swing Check Valve Stainless Steel – API H44W
The opening and closing parts of the H44W swing check valve stainless steel is a
Swing Check Valve Cast Steel – ANSI API H44H
H44H swing check valve is suitable on the nitrk acid type pipelie does prevents the
Възвратен клапан от неръждаема стомана – H41W
H41W Възвратните клапани за повдигане са вид възвратен клапан, който работи чрез повдигане на a
Pressure Control Check Valve – SK500
SK500 pressure control check valve in the pipeline can effectively release the pressure relief pressure
Flow Control Check Valve – SK400
SK400 flow control check valve controls the water pressure in the pipeline to automatically operate
Slowly Close Silent Check Valve – SK300
SK300 slowly close silent check valve is a type of check valve that is designed
Adjustable Pressure Reducing Ball Check Valve – SK200
SK200 adjustable pressure reducing ball check valve is a type of valve that is used
Възвратен клапан с плаваща топка с дистанционно управление – SK100
SK100 remote control floating ball check valve is a type of valve that combines the
Orbital Ball Check Valve Cast Iron – HQ41X
HQ41X orbital ball check valve is a type of check valve that allows unidirectional flow
Възвратна клапа тип пеперуда – DH77X
DH77X wafer butterfly check valve is a type of valve that allows fluid to flow
Silent Check Valve Flanged Cast Iron – HC41X
HC41X silent check valve is a type of check valve designed to reduce the noise
Swing Flanged Check Valve Cast Iron – H44T
H44T swing check valve is a type of check valve that allows flow in one
Lift Flanged Check Valve Cast Iron – H41T
H41T Cast iron lift flanged check valves are commonly used in applications where the flow
Pump Control Lift Check Valve – JD745X
JD745X pump control lift check valve is used in the water supply system of high-rise
Water Pump Control Check Valves – SK700
SK700 water pump control check valve can control valve of the pump. When the pump
Advantages of Check Valves
- Preventing Backflow: The primary advantage of non-ruturn check valves is that they prevent backflow, which can cause damage to equipment and disrupt the flow of fluid in a system. By preventing backflow, check valves help to maintain system efficiency and prevent costly downtime.
- Reduced Maintenance: Check valves require little maintenance compared to other types of one-way valves. They are typically designed to operate without any external power source, making them easy to install and maintain.
- Energy Savings: Check valves can help to reduce energy consumption in a system. By preventing backflow, check valves reduce the need for additional pumping power to compensate for the loss of pressure caused by reverse flow. This can result in significant energy savings over time.
- Improved System Efficiency: Types of check valves can improve the overall efficiency of a system by maintaining a consistent flow of fluid in one direction. This can help to reduce the wear and tear on equipment and improve the performance of pumps and compressors.
- Preventing Water Hammer: Pipelines carrying liquids, such as water distribution systems, rapid changes in flow velocity can cause pressure surges known as water hammer. Check valves help mitigate the effects of water hammer by preventing the sudden reversal of flow, which can lead to pipe damage, leaks, or even system failure.
- Maintaining System Pressure: Some pipeline systems, check valves are used to maintain the desired pressure levels. For example, in water distribution networks, check valves can prevent the backflow of water from higher-pressure areas to lower-pressure areas, ensuring consistent water pressure throughout the system.
- Preventing Backflow of Hazardous Materials: Pipelines carrying hazardous materials, such as chemicals or toxic gases, check valves are essential for preventing backflow and potential leaks or spills that could pose environmental or safety risks.
Завъртащ се възвратен клапан
Swing check valves are the most common type of check valves. They consist of a disk that swings on a hinge, allowing the fluid to flow in one direction and closing when the fluid flows in the opposite direction.
Swing check valves are suitable for applications with low to moderate flow rates, and where back pressure is minimal.
Lift / Piston Check Valve
Lift/Piston check valves are similar to swing check valves, but instead of swinging, the disk moves up and down to open and close the valve. Lift check valves are suitable for high-pressure applications and where the flow rate is low to moderate.
Piston check valves are commonly used in oil and gas pipelines, производство на електроенергия, минен, and petrochemical industry applications to prevent backflow of fluids or gases and protect the equipment from damage.
Вафлен възвратен клапан
The wafer check valve is thin and structurally stable, so it can be adapted to a wide range of scenarios.
This type check valve is widely used in roommate chemical, metallurgical manufacturing, фармацевтични, environmental protection, производство на хартия, минен, urban construction, household pipeline and other industries.
Сферичен възвратен клапан
Ball check valves use a ball-shaped disk to control the flow of fluid. When the fluid flows in the desired direction, the ball moves away from the valve seat, allowing the fluid to pass through.
When the fluid flows in the opposite direction, the ball is pressed against the valve seat, предотвратяване на обратен поток. Ball check valves are suitable for applications with high flow rates and where minimal pressure drop is required.
Спирателен възвратен клапан
Stop check valves combine the features of a lift check valve and a globe valve. They allow fluid to flow in one direction and close to prevent backflow.
въпреки това, they also allow the operator to manually close the valve in the event of an emergency or maintenance. Stop check valves are suitable for high-pressure applications and where frequent maintenance is required.
Безшумен възвратен клапан
A silent check valve is a type of valve that is designed to prevent backflow in a piping system. The valve body is usually made of metal or plastic and contains the other components of the valve. The nozzle is a small opening in the valve body that allows fluid to flow through. The check valve element is located inside the valve body and is designed to allow fluid to flow in one direction only.
The scope of application of a nozzle check valve can be in a wide range of industries, включително нефт и газ, химически, нефтохимически, фармацевтични, храни и напитки, and water treatment. These valves can be used in a variety of applications, such as pipelines, pumps, and compressors, to prevent backflow and protect equipment.
The Most Important Applications and Uses of Check Valves
Проект за пречистване на водата
Swing check valves are commonly used in water treatment plants to prevent backflow and protect pumps. According to Farpro's statistics, беше установено, че различни видове клапани се използват за всяко ниво на общо пречистване на отпадъчни води.
1. Първата стъпка, първично лечение, премахва твърдите замърсители в суспензия, и повечето физически методи на лечение отговарят на изискванията за лечение. След първично лечение, степента на отстраняване на БПК обикновено е около 30%. Here commonly used valves and pipeline accessories are: ножови шибъри, triple eccentric butterfly valves, filters, и т.н.
2. the second step, необходимостта от отстраняване на колоидните и разтворените органични замърсители в канализацията (БПК, ХПК вещества), степента на отстраняване на 90%, така че органичните замърсители да отговарят на стандартите за заустване, скорост на отстраняване на суспендирани вещества до 95%. The valves commonly used here are soft seal butterfly valves, шибърни кранове, сферични кранове, възвратни клапани, и т.н.
3. the third step, основните методи включват биологична денитрификация и отстраняване на фосфор, коагулация и утаяване, пясъчна филтрация, адсорбция с активен въглен, йонообмен и електроосмоза. Необходимите тук клапани са дроселни клапи, шибърна клапа, сферичен кран, възвратен клапан, гумено меко съединение, и т.н.
Индустрия за производство на електроенергия
Farpro вярва, че приложенията в електроцентралите поставят тръбопроводите и клапаните под огромен стрес, така че клапаните се нуждаят от здрави материали и дизайн, за да се справят с множеството тестове на циркулацията, температура и налягане.
Stop check valves are commonly used in power generation applications, where high-pressure steam and fluid must be controlled to ensure safety and prevent damage to equipment.
В допълнение към главните парни клапани, електроцентралите имат много спомагателни тръбопроводи. Тези спомагателни тръбопроводи се състоят от голямо разнообразие от сферични вентили, бътерфлай клапи, възвратни клапани, сферични кранове, и шибърни кранове.
Химическа обработка
Ball check valves are commonly used in chemical processing applications, where the flow rate is high, and pressure drop is minimal.
Oil & Gas / Морска индустрия
Farpro заключи, въз основа на глобални продажби и данни, че търсенето на клапани в глобалната индустрия за добив на нефт и газ и транспортната индустрия продължава да расте. Това търсене доведе до стремежа на нефтената и газовата индустрия за по-дълбоки сондажни тръбопроводи и по-ниски производствени разходи, така че техниците полагат по-голямо внимание при избора на качествено вентилно оборудване и хардуер.
Diaphragm check valves are suitable for the oil and gas industry, where the fluid may contain debris, and low pressure drop is required.
С какви региони и фабрики работи Farpro Valve?
Индустрия на електроцентрали
- Проект за топлоелектрическа централа Shenglong 2*300MW във Виетнам
- Проект за електроцентрала Thailang TPI PP 150MW
- Проект за електроцентрала с комбиниран цикъл на Бангладеш Hiraganjie 225MW
- Южноафриканска мина Тубаце Термична пещ за генериране на топлинна енергия от отпадъци
- Проект за когенерация Korla 2*350MW
- Водноелектрическа централа Olese Камбоджа
Oil&Gas / Нефтохимически доставчици
- Baofeng Energy Group
- China Petroleum Engineering Construction
- SABIC Corporation Indonesia Проект за природен газ
- Проект за геофизични проучвания в Саудитска Арабия
- Казахстански проект за проучване на Колжан
- Покупка на противопожарен клапан за проект за резервоар TEMA в Гана
Доставчици на градско строителство
- Проект за водопренос на Краков в Полша
- Проект за помпена станция Tusterrick в Узбекистан
- Проект Пакистан SK
- Проект Angola Nova Ciamangola 5000TPD, и т.н.
Farpro Valve Вярвания
Вярваме, че сериозното отношение към всеки продукт и искреното приемане на всеки клиент са най-важните неща за Farpro Valve.
Our check valves do not necessarily have the lowest price, но определено ще бъдем най-честният производител и вашият най-верен партньор.
Farpro Valve is a global valve manufacturer that specializes in the research, развитие, производство, and sales of valves for a variety of industries. Our products meet a range of standards including GB/JB, API, ANSI, AWWA, ОТ, ТОЙ, ГОСТ, и NF.
We offer a wide range of valves, включително gate type valves, globe type valves, ball type valves, butterfly type valves, check type valves, диафрагмени вентили, редуцир вентили, щепселни вентили, и капани. Нашите вентили се предлагат в 12 основни категории, 200 серия, и 4000 размери, providing our customers with ample options to suit their needs.
Our valves are made from a variety of materials, включително месинг, неръждаема стомана, PVC, и чугун, depending on the application and fluid or gas properties. We ensure that all of our products are of the highest quality and reliable in operation.
With an annual output of 80,000 тона, our products are widely used in industries such as petroleum, нефтохимически, химически, електрическа енергия, металургия, опазване на водата, строителство, фармацевтични продукти, дренаж, и още. Our valves are popular in over 30 страни и региони в Европа, Централна Азия, Западна Азия, и отвъд, включително Германия, Англия, Франция, Италия, Бразилия, and Poland.
Във Farpro Valve, we prioritize honesty and integrity and strive to be the most faithful partner to our customers. Our check valves, for example, may not have the lowest price, but we guarantee that we are the most honest manufacturer in the market. Choose Farpro Valve for high-quality products and reliable service.
Често задавани въпроси
What is a check valve?
– A check valve is a mechanical valve that allows fluid to flow in one direction while preventing backflow in the opposite direction.
What are the types of check valves?
– There are several types of check valves, including swing check valves, lift check valves, and ball check valves.
Where are check valves used?
– Check valves are used in a variety of industries, включително нефт и газ, пречистване на водата, химически, food processing, and HVAC.
What are the advantages of check valves?
– Check valves offer several advantages, including preventing backflow, reducing maintenance, saving energy, and improving system efficiency.
How do check valves help to save energy?
– Check valve can help to reduce energy consumption in a system by preventing backflow and reducing the need for additional pumping power to compensate for the loss of pressure caused by reverse flow.