Dual Compartment Welded Railway Air Reservoir 11*17 for Freight Wagon Brake System

Dual Compartment Welded Railway Air Reservoir 11*17

Product Overview

This dual compartment air reservoir is a heavy-duty welded air storage vessel specially designed for railway freight wagon air brake systems. As a core component of railway pneumatic braking equipment, it adopts an integrated welded air reservoir structure with an internal partition plate, dividing the tank into two independent sealed chambers with rated volumes of 11L and 17L respectively. Tailored for 120-type railway brake valves, this railway air reservoir provides stable and reliable air pressure support for train service braking, pressure maintaining and slow release functions, widely applicable to standard railway freight wagons worldwide.

Core Structural & Design Advantages

• Integrated Welded Construction: Adopts full seamless welding process with integral cylinder body and elliptical head sealing. Compared with traditional flange assembled structures, this welded air reservoir features higher structural rigidity, zero air leakage risk, stronger vibration resistance, and adapts to long-term high-frequency vibration working conditions of railway operation.
• Dual Independent Compartment Design: The dual compartment air reservoir is precisely divided into a 11L working air chamber and a 17L pressure reduction air chamber. The two chambers work independently without mutual interference, realizing accurate pneumatic control, effectively optimizing train braking sensitivity and ensuring stable stage braking and slow release performance.
• Premium Pressure Vessel Material: Made of high-quality Q245R pressure vessel steel or customized stainless steel material. The thickened cylinder wall ensures excellent pressure resistance, corrosion resistance and low-temperature adaptability, meeting the rigorous service requirements of complex railway working environments.
• Standardized Interface & Installation: Equipped with standard pneumatic thread interfaces and bottom drain plugs for each chamber, facilitating pipeline connection, daily drainage and maintenance. The integrated lifting seat design realizes fast and firm bottom frame installation, compatible with mainstream railway wagon mounting standards.

Technical Specifications

Product Performance & Quality Assurance

All our railway air reservoir products undergo strict factory tests including 100% hydraulic pressure strength test, air tightness test, weld nondestructive testing (MT/RT), and volume calibration. The integrated welded structure eliminates hidden dangers of air leakage and structural failure, ensuring long-term stable operation in high-intensity railway scenarios. Each product is marked with a formal nameplate with complete production certificates, test reports and quality documents to support global project inspection and acceptance.

Application Scope

This dual compartment welded air reservoir is universally suitable for various railway freight wagons, including grain hopper wagons, open-top wagons, tank wagons and other standard railway vehicles. It is the matching core part of 120-type air brake systems, widely used in domestic and international railway renovation and new construction projects, favored by global railway equipment suppliers and engineering contractors.

Customization Service

We support personalized customization of railway air reservoirs, including thread standard conversion (NPT/G thread), size adjustment, surface anti-corrosion treatment, material upgrading and exclusive logo marking. Provide one-stop solutions for global railway spare parts procurement and project supporting needs.

For bulk orders, customized parameters or OEM cooperation, please contact our sales team for a quotation.