Wholesale Non-Return Valve

Zhejiang Qinghao Copper Co., Ltd.

Zhejiang Qinghao Copper Co.,LTD is professional Brass Check Valve manufacturers and Check Valve suppliers in China. We located in the north of Yuhuan, the capital of china valve, specialize in brass valves and plumbing eqnipments.

As the manufacturer, we experience in every kinds of civilian valves, such as angle valve, mini valve, check valve, seat valve, filter..... and also some accessories for cooling systerm. It wins good reputations for stable quality and competitive price. European buyers become our main customers. We enjoy in OEM business and share high technology with them. We custom make and wholesale Brass Check Valve in bulk.

Always we are improving. Everyday is nice day, we believe!


Industry Knowledge Extension

Features of check valve

A check valve, also known as a non-return valve, is a type of valve whose main characteristics are as follows:

Can prevent reverse flow: The check valve is designed to allow only one-way flow and prevent the reverse flow of media in the pipeline. This protects pipes and systems from the reverse flow that could cause danger or damage.

Simple operation: The check valve has no handle or other control mechanism, requires no human intervention, and is free from human error, so it is very simple and easy to use.

Noiseless: Check valve's special design reduces noise and vibration in the pipeline.

Ease of maintenance: The check valve requires little maintenance because it has no moving parts and no motors, batteries, or other electronics.

Wide applicability: Check valves can be used in various applications, such as in hydraulic systems, water treatment systems, chemical processes, the petroleum industry, the pharmaceutical industry, etc.

Various types: Check valve has many different types, including ball type, flap type, clamp type, etc., to suit the needs of different applications.

The main features of a check valve include preventing reverse flow, simple operation, no noise, simple maintenance, wide applicability, and various types available. These features make the check valve a very practical valve type used in a wide variety of fluid control and processing applications.

How to choose Check Valve

Choosing the right automatic check valve involves considering several factors to ensure it meets the specific requirements of your application. Here are the key steps to help you make an informed decision:

Identify the application: Understand the purpose of the check valve in your system. Determine whether it needs to prevent backflow, control flow direction, or maintain pressure.

Type of check valve: There are different types of check valves, including swing check valves, lift check valves and ball check valves. Choose the type that suits your application best based on factors like flow rate, pressure, and the nature of the fluid.

Material selection: Consider the material of the valve body and components. Materials like stainless steel, brass, and PVC are common choices, and the selection should depend on the compatibility with the fluid being handled and the environment (corrosion resistance, temperature, etc.).

Size and flow capacity: Select the appropriate size of the valve based on the pipe diameter and flow rate. Ensure that the valve's flow capacity matches or exceeds the requirements of your system.

Pressure rating: Check the valve's pressure rating to ensure it can handle the maximum pressure in your system without causing any damage or leakage.

Operating conditions: Consider the temperature, viscosity, and other operating conditions of the fluid. Some check valves may be better suited for specific conditions, such as high-temperature environments or viscous fluids.

End connections: Determine the type of end connections (threaded, flanged, etc.) that are compatible with your piping system.

Installation and maintenance: Consider the ease of installation and future maintenance requirements. Some check valves may have features that simplify installation or allow for easy inspection and maintenance.

Compliance and standards: Ensure that the valve complies with relevant industry standards and regulations, especially if it is used in critical applications.

Cost: Compare the cost of the valve with your budget, but prioritize performance and reliability over price to avoid potential issues and maintenance costs down the line.