BYF-3 Oxygen Cylinder Residual Pressure Valve for Pressure Holding Function
You are here: Home » Valves » GAS CYLINDER VALVE » O2/N2/Ar Valve » BYF-3 Oxygen Cylinder Residual Pressure Valve for Pressure Holding Function


Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

BYF-3 Oxygen Cylinder Residual Pressure Valve for Pressure Holding Function

5 0 Reviews
BYF-3 Oxygen Cylinder Residual Pressure Valve is a high-quality device that is specifically designed to maintain residual pressure in oxygen cylinders. This valve features a pressure holding function that ensures a constant and safe level of residual pressure, even when the cylinder is not in use. The BYF-3 is constructed with precision engineering and is built to withstand the rigors of daily use.
  • BYF-3

  • Feilun

Product Paremeters

Type No.


Product Name

Pressure Retaining Valve

Inlet Thread


Outlet Thread


Nominal Pressure


Nominal Diameter


Suitable Media


Product Details

According to national standards, all domestic gas cylinder valves need a device with residual pressure holding. A device that maintains a positive pressure in the cylinder relative to the atmosphere by closing the internal gas channel in the outlet direction and preventing pollutants from entering the cylinder. The device has a check function that prevents gas from flowing back from the valve outlet to the cylinder. We recommend that customers from all over the world also come to know this valve, replacing the previous cylinder valve with this pressure holding valve will improve the safety performance of the valve.

This valve is ideal for use in a variety of settings, including medical facilities, industrial applications, and other environments where oxygen storage and delivery are critical. The BYF-3 is easy to install and operate, and it provides years of reliable service.

When it comes to safety and reliability, the BYF-3 Oxygen Cylinder Residual Pressure Valve is an excellent choice. Its precision engineering and high-quality construction ensure that it will perform flawlessly, even under the most demanding conditions. So if you want to ensure the safety and reliability of your oxygen storage system, choose the BYF-3 Oxygen Cylinder Residual Pressure Valve today.


1、The material for producing the valve is the raw material processed by the factory itself. Through the smelting furnace, the raw materials such as electrolytic copper and lead plate are produced into HPb59-1 (Brass) higher than the national standard, and then through special extrusion, cutting, processing, cleaning and other equipment Produce the required parts. Therefore, source quality control is a vital part of the entire quality management system.

2、We are self-produced and sold, have a large inventory and low MOQ(1pcs).

3、We have related natural gas valve certificates.

Danyang Feilun Gas Valve Co., Ltd. established in 2001, located in a historic town Yanling in Jiangsu, China. It is a professional valve manufacturer with more than 200 employees, including dozens of technical engineers.

Quick Links

Contact Us 
 21 Dongjin Rd., Yanling Town, Danyang District, Zhenjiang City, Jiangsu, China
Leave a Message
Contact Us
Copyright © 2023 Danyang Feilun Gas Valve Co., Ltd. All Rights Reserved. Privacy Policy | Sitemap Support By Leadong