Many vrste nepovratnih ventila 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, ali svakako ćemo biti najpošteniji proizvođač i vaš najvjerniji partner.
Types of Farpro Check Valves
With a pass rate of over 93% na pojedinačnim probnim izvođenjima, 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
Lift Check Valve Stainless Steel – H41W
H41W Lift check valves are a type of check valve that operate by lifting a
Nepovratni ventil za kontrolu tlaka – SK500
SK500 pressure control check valve in the pipeline can effectively release the pressure relief pressure
Nepovratni ventil za kontrolu protoka – 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
Remote Control Floating Ball Check Valve – 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
Vafer leptir povratni ventil – 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
Kontrolni nepovratni ventili pumpe za vodu – SK700
Kontrolni nepovratni ventil pumpe za vodu SK700 može kontrolirati ventil pumpe. 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, curenja, or even system failure.
- Maintaining System Pressure: Some pipeline systems, check valves are used to maintain the desired pressure levels. Na primjer, 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.
Zakretni povratni ventil
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, proizvodnja električne energije, rudarstvo, and petrochemical industry applications to prevent backflow of fluids or gases and protect the equipment from damage.
Vafer nepovratni ventil
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, metalurška proizvodnja, farmaceutski, zaštita okoliša, izrada papira, rudarstvo, gradska izgradnja, household pipeline and other industries.
Kuglasti povratni ventil
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, sprječavanje povratnog toka. Ball check valves are suitable for applications with high flow rates and where minimal pressure drop is required.
Zaustavni povratni ventil
Stop check valves combine the features of a lift check valve and a globe valve. Omogućuju protok tekućine u jednom smjeru i zatvaraju se kako bi spriječili povratni tok.
Međutim, 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.
Tihi povratni ventil
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, uključujući naftu i plin, kemijski, petrokemijski, farmaceutski, hrane i pića, i tretman vode. These valves can be used in a variety of applications, such as pipelines, pumpe, and compressors, to prevent backflow and protect equipment.
The Most Important Applications and Uses of Check Valves
Projekt pročišćavanja vode
Swing check valves are commonly used in water treatment plants to prevent backflow and protect pumps. According to Farpro's statistics, utvrđeno je da se za svaki stupanj općeg pročišćavanja otpadnih voda koriste različite vrste ventila.
1. Prvi korak, primarni tretman, uklanja krute zagađivače u suspenziji, a većina fizikalnih metoda liječenja zadovoljava zahtjeve liječenja. Nakon primarne obrade, stopa uklanjanja BPK općenito je oko 30%. Here commonly used valves and pipeline accessories are: nožasti zasuni, triple eccentric butterfly valves, filters, itd.
2. the second step, potreba uklanjanja koloida i otopljenih organskih zagađivača u kanalizaciji (BOD, KPK tvari), stopa uklanjanja 90%, tako da organski zagađivači zadovoljavaju standarde ispuštanja, brzina uklanjanja suspendirane tvari to 95%. The valves commonly used here are soft seal butterfly valves, zasuni zasuna, kuglasti ventili, povratni ventili, itd.
3. the third step, glavne metode uključuju biološku denitrifikaciju i uklanjanje fosfora, koagulacija i sedimentacija, filtracija pijeska, adsorpcija aktivnog ugljena, ionska izmjena i elektroosmoza. Ventili koji su ovdje potrebni su leptir ventil, zasuna, kuglasti ventil, provjeriti ventil, gumeni mekani spoj, itd.
Industrija proizvodnje električne energije
Farpro vjeruje da primjene u elektranama stavljaju cjevovode i ventile pod ogroman stres, tako da ventili trebaju robusne materijale i dizajne kako bi podnijeli višestruke testove cirkulacije, temperatura i tlak.
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.
Osim glavnih parnih ventila, elektrane imaju mnogo pomoćnih cjevovoda. Ovi pomoćni cjevovodi sastoje se od velikog broja kuglastih ventila, leptir ventili, povratni ventili, kuglasti ventili, i zasune.
Kemijska obrada
Ball check valves are commonly used in chemical processing applications, where the flow rate is high, and pressure drop is minimal.
Oil & Gas / Pomorska industrija
Farpro je zaključio, na temelju globalne prodaje i podataka, da potražnja za ventilima u globalnoj industriji vađenja nafte i plina i transportnoj industriji nastavlja rasti. Ova potražnja dovela je do potrage industrije nafte i plina za dubljim cjevovodima za bušenje i nižim troškovima proizvodnje, stoga tehničari posvećuju veću pozornost odabiru kvalitetne opreme ventila i hardvera.
Diaphragm check valves are suitable for the oil and gas industry, where the fluid may contain debris, and low pressure drop is required.
S kojim je regijama i tvornicama surađivao Farpro Valve?
Industrija elektrana
- Projekt termoelektrane Shenglong 2*300MW u Vijetnamu
- Projekt elektrane Thailang TPI PP od 150 MW
- Projekt elektrane s kombiniranim ciklusom Bangladeš Hiraganjie od 225 MW
- Projekt proizvodnje toplinske energije iz otpadne toplinske energije u južnoafričkom rudniku Tubatse
- Projekt kogeneracije Korla 2*350MW
- Hidroelektrana Olese Kambodža
Oil&Gas / Dobavljači petrokemijskih proizvoda
- Baofeng Energy Group
- China Petroleum Engineering Construction
- SABIC Corporation Indonesia Projekt prirodnog plina
- Projekt geofizičkog istraživanja u Saudijskoj Arabiji
- Kazahstan Kolzhan Prospecting Project
- Gana TEMA Tank Project Kupnja vatrogasnog ventila
Dobavljači urbane gradnje
- Poljska Projekt prijenosa vode Krakow
- Projekt crpne stanice Tusterrick u Uzbekistanu
- Pakistan SK projekt
- Projekt Angola Nova Ciamangola 5000TPD, itd.
Uvjerenja Farpro ventila
Vjerujemo da su ozbiljno tretiranje svakog proizvoda i iskreno primanje svakog kupca najvažnije stvari za Farpro Valve.
Our check valves do not necessarily have the lowest price, ali svakako ćemo biti najpošteniji proizvođač i vaš najvjerniji partner.
Farpro Valve je globalni proizvođač ventila specijaliziran za istraživanje, razvoj, proizvodnja, and sales of valves for a variety of industries. Our products meet a range of standards including GB/JB, API, ANSI, AWWA, IZ, ON, GOST, i NF.
We offer a wide range of valves, uključujući gate type valves, globe type valves, ball type valves, butterfly type valves, check type valves, membranski ventili, ventili za smanjenje tlaka, čep ventili, i zamke. Naši ventili dostupni su u 12 glavne kategorije, 200 niz, i 4000 veličine, providing our customers with ample options to suit their needs.
Our valves are made from a variety of materials, including brass, ne hrđajući Čelik, PVC, i lijevanog željeza, 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 tona, our products are widely used in industries such as petroleum, petrokemijski, kemijski, električna energija, metalurgija, očuvanje vode, konstrukcija, farmaceutski proizvodi, drenaža, i više. Our valves are popular in over 30 zemljama i regijama u Europi, Srednja Azija, Zapadna Azija, i dalje, uključujući Njemačku, Engleska, Francuska, Italija, Brazil, and Poland.
U Farpro Valveu, we prioritize honesty and integrity and strive to be the most faithful partner to our customers. Naši povratni ventili, 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.
FAQ
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, uključujući naftu i plin, obrada vode, kemijski, obrada hrane, 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.