Wafer check valve is also called counterflow valve, обратный клапан, обратный клапан, and one-way valve. This type of valve automatically opens and closes by the force generated by the flow of the medium in the pipeline. Это автоматический клапан. The wafer check valve is a one-way valve that is currently widely used in various industries. Its main function is to prevent the reverse flow of the medium. Wafer check valves can be divided into single disc and double disc check valves. The single-disc and double-disc types of wafer check valves are mainly divided according to the valve diameter. The purpose is to prevent the medium from stopping the flow or backflow and weakening the hydraulic impact.
The single диск вафля обратный клапан has a compact structure and low manufacturing cost. The structural length is only one-thirtieth to one-tenth of the traditional flange-type check valve. It adopts an integral built-in structure and has no external leakage points. Its flow channel The area is 3% к 10% larger than the conventional wafer check valve, the pressure loss is smaller, and the valve disc closes quickly. There are still many areas of use.
The butterfly plate of the double disc wafer check valve is two semicircles, and is forced to return by a spring. The sealing surface can be made of wear-resistant material overlayed on the body or lined with rubber, and the sealing is reliable. The wafer-type double-disc check valve has a wide range of applications and can be used in pure pipelines and industrial, защита окружающей среды, очистка воды, high-rise building water supply and drainage pipelines, и т. д.. Its main function is to prevent the reverse flow of the medium.
In terms of selection, specific needs must be analyzed in detail. Below TWT,China will introduce it to buyers.
Однодисковый межфланцевый дроссельный клапан
Single disc wafer check valve is a disc-type ultra-thin check valve. Диск клапана оснащен уплотнительным кольцом., which has good sealing performance and spring-assisted closing. It is sensitive in action, especially for places with limited installation space. Z is applicable. Он имеет преимущества простой структуры, красивый внешний вид, легкий вес и простая установка. It is mainly suitable for water supply systems, нефть, химическая индустрия, metallurgy and other industrial sectors, и наиболее подходит для мест с ограниченным пространством для установки.
Функции однодискового дискового затвора:
- Конструкция имеет короткую длину., небольшой размер и легкий вес, что обеспечивает большое удобство установки, транспортировка и хранение трубопроводов для арматуры, и может сэкономить много материалов и снизить затраты.
- Thesingle disc wafer check valve has an integral structure, какой простой и компактный. Имеет небольшую силу удара при закрытии клапана., небольшое давление гидроудара, длительный срок службы клапана и высокая надежность.
- Его можно установить горизонтально или вертикально. Он легкий по весу и не требует установки опоры для клапана..
- Канал потока гладкий, сопротивление жидкости небольшое, и диск клапана можно безопасно открыть при небольшой разнице давления.
Double disc wafer butterfly valve
Double disc wafer check valve is composed of valve body, диск клапана, шток клапана, пружина и другие детали, и принимает соединение типа пластины. Поскольку диск клапана имеет короткий ход и подпружинен., гидравлический удар может быть значительно уменьшен. Этот клапан в основном подходит для водопроводных и дренажных труб в городах., промышленные предприятия и высотные здания. Поскольку его конструктивная длина короче, чем у обычных обратных клапанов., он больше подходит для мест с ограниченным пространством для установки.
The double disc wafer check valve is used for pure pipelines and industrial, защита окружающей среды, очистка воды, and high-rise building water supply and drainage system pipelines to prevent the reverse flow of media. The double disc wafer check valve adopts a wafer type and has two discs. Он полукруглый и использует пружину для принудительного сброса.. The sealing surface can be made of wear-resistant material surfacing on the body or lined with rubber, cemented carbide and other seals. It has a wide range of uses and reliable sealing.
There are some other aspects to consider when selecting between single disc wafer check valve and double disc wafer check valve.You are always welcomed to consult TWT,a leading valve supplier from China.Here is an example.
Common material of double disc wafer butterfly valve
- Латунь: Brass check valves are a common choice because of their good corrosion resistance and mechanical properties. It is suitable for general water and gas fluid applications, but may be less suitable in acidic media.
- Нержавеющая сталь: Stainless steel is a high-strength, corrosion-resistant material suitable for a variety of media, например, вода, gas and chemical liquids. Stainless steel check valves can withstand high temperature and high pressure environments and are therefore widely used in industrial fields.
- Чугун: Cast iron check valves have high strength and corrosion resistance and are suitable for piping systems with liquid and gaseous fluids. It can withstand high pressure and high temperature environments, making it a reliable choice.
- PVC: Polyvinyl chloride (PVC) is a common plastic material with good corrosion resistance and low cost. PVC check valves are suitable for applications such as water treatment, wastewater treatment and chemical delivery.
- Бронза: Bronze check valve is an alloy material composed of copper and tin. It has good corrosion resistance and thermal conductivity and is suitable for applications with water and oil media.