Stainless Steel Check Valves Factory

1.Specification

Size:	2"-36"
Pressure:	150LB-2500LB
Body Material:	CF8, CF8M, CF3, CF3M, CD3MNWCuN, CW2M, Monel, CN7M, 20#Alloys, 4A, 5A, etc.
Seal Material:	STELLITE, 13Cr, SS304, SS316, etc.
Connection Type:	Flanged, Butt Welded, Socket Welded, NPT
Face to Face Dimension:	ASME B16.10
Flange End Dimension:	ASME B16.5
Butt Welded Dimension:	ASME B16.25
Design and Manufacture:	BS1868,API 6D
Test Standard:	API 598,API 6FA, ISO 15848-1-2

2.Features

Available with CF8(304), CF3(304L), CF8M(316), CF3M(316L), etc.

The minimum suitable temperature can reach - 196℃.

Available with flange end, butt welding end, thread end, socket welding end, etc.

Bolted bonnet & welded bonnet & pressure seal bonnet & union bonnet

Used in the pipeline with one-way flow of medium to prevent backflow of medium

Suitable for water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, and other medium

3.FAQ

What is the difference between check valve and butterfly valve

A check valve and a butterfly valve are both types of valves used in fluid control systems, but they have different designs and functions.

1. Check Valve:
A check valve, also known as a non-return valve or one-way valve, is designed to allow fluid flow in one direction and prevent backflow in the opposite direction. It typically consists of a disc or a ball that opens and closes based on the flow direction and pressure. When the fluid flows in the desired direction, the valve opens, allowing the fluid to pass through. However, when the flow reverses, the valve closes, preventing backflow. Check valves are commonly used to prevent the reversal of flow in pipelines and to protect pumps and other equipment from damage. api 6d ball valve

2. Butterfly Valve:
A butterfly valve is a quarter-turn valve that uses a disc-shaped closure element to control the flow of fluid. The disc is mounted on a spindle and rotates either parallel or perpendicular to the flow direction to control the flow rate. When the disc is in a fully open position, it allows maximum flow, and when it is in a fully closed position, it blocks the flow completely. Butterfly valves are known for their quick operation and low-pressure drop. They are commonly used in large-scale applications, such as water treatment plants, HVAC systems, and industrial processes.

In summary, the main difference between a check valve and a butterfly valve lies in their design and function. A check valve allows flow in one direction and prevents backflow, while a butterfly valve controls the flow rate by rotating a disc to open or close the passage. The selection of the valve depends on the specific application requirements and the desired functionality. forged ball valve

What is the most common type of check valve

The most common type of check valve is the swing check valve. It is also known as a tilting disc check valve or a flapper valve. The swing check valve consists of a disc that swings on a hinge or a pin to allow fluid flow in one direction and prevent backflow in the opposite direction. When the fluid flows in the desired direction, the disc swings open, allowing the fluid to pass through. However, when the flow reverses, the disc swings shut, preventing backflow. carbon steel gate valves

Swing check valves are commonly used in a variety of applications, including water and wastewater treatment, oil and gas pipelines, and HVAC systems. They are relatively simple in design and easy to install, making them a popular choice for many fluid control systems. However, they may not be suitable for applications with high flow rates or where a low-pressure drop is required. In such cases, other types of check valves, such as ball check valves or piston check valves, may be more appropriate. high temperature gate valves

What is the primary function of a check valve

The primary function of a check valve is to allow fluid flow in one direction and prevent backflow in the opposite direction. It acts as a one-way valve, ensuring that fluid can only flow in the desired direction and preventing any reverse flow. When the fluid flows in the intended direction, the check valve opens, allowing the fluid to pass through. However, when the flow reverses or there is a backflow, the check valve closes, blocking the flow and preventing any undesired reverse flow.

Check valves are essential in various applications to maintain the proper flow direction and prevent damage to equipment or systems. They are commonly used in pipelines, pumps, compressors, and other fluid control systems. The primary function of a check valve is to provide protection against backflow, ensuring the efficiency and safety of the overall system, low temperature ball valves.

Is the check valve unidirectional or bidirectional

A check valve is typically unidirectional, meaning it allows fluid flow in one direction and prevents backflow in the opposite direction. The valve is designed to open and allow fluid to flow in the intended direction, but when the flow reverses, the valve closes to prevent any reverse flow. However, there are some types of check valves that can be bidirectional, meaning they can allow fluid flow in both directions. These types of check valves are typically used in applications where the flow direction can change, such as in some HVAC systems. Overall, the majority of check valves are unidirectional and designed to prevent backflow, api602 forged gate valve.

Can a check valve be zero leakage

Yes, a check valve can be designed to have zero leakage. The valve is designed to prevent backflow, and if it is properly designed and installed, it can effectively prevent any leakage. However, it is important to note that the valve must be installed correctly and maintained properly to ensure that it remains leak-free. Additionally, the type of fluid being transported and the operating conditions can also affect the valve's performance and potential for leakage. Therefore, it is important to select the appropriate type of check valve for the specific application and ensure that it is installed and maintained correctly to achieve zero leakage.