28L Railway Wagon Compressed Air Reservoir Air Tank for Freight Car Brake System

28L Railway Wagon Compressed Air Reservoir Air Tank for Freight Car Brake System

Product Overview

This 28L compressed air reservoir is a core auxiliary pressure storage component specially designed for railway freight car braking systems. Also known as an air reservoir or air tank, it perfectly matches the 120-type air control valve system and is widely equipped on 70-ton railway wagons, including C70, P70 series gondola cars, covered goods wagons and part of hopper cars. Serving as an acceleration relief air cylinder and volume air cylinder, it effectively optimizes the air charging and relieving process of long freight trains.

Manufactured with high-quality TCS345 ferritic stainless steel, this railway air tank features lightweight structure, excellent corrosion resistance and extreme temperature adaptability. Adopting integrated cylinder barrel and two-end spinning head welding technology without cross welds, the product boasts stable structural strength, tight sealing performance and long service life, supporting underframe external and embedded installation for railway vehicles.

Key Features & Advantages

• Premium Stainless Steel Material: Made of TCS345 stainless steel, realizing lightweight design while resisting rust, oxidation and atmospheric corrosion, suitable for long-term outdoor railway operation.
• Optimized Welding Structure: Seamless welding structure without cross welds, eliminating structural weak points and improving overall pressure resistance and durability.
• Stable Pressure Performance: Standard working pressure of 0.5MPa, with 0.75MPa hydraulic test pressure (1.5 times working pressure), 100% factory hydraulic and air tightness tests to ensure zero leakage.
• Extreme Weather Adaptability: Works stably in a wide temperature range from -50°C to +70°C, fully adapting to alpine, high-temperature and harsh railway operation environments.
• Complete Structural Design: Equipped with air inlet, drain plug seat for condensed water discharge, mounting brackets and standard nameplate; complete accessories ensure easy installation, maintenance and traceability.
• Professional Railway Standard: Manufactured and inspected in strict accordance with TB/T 1900 and TB/T 2231.2 railway industry standards, compliant with global railway freight car brake system matching requirements.

Technical Specifications

Product Functions

As a professional compressed air reservoir for railway braking systems, this air tank stores compressed air and assists the brake system in rapid pressure regulation. It accelerates the air charging and pressure relieving of the local vehicle and rear vehicles during train operation, greatly shortening the relieving time of long marshalling freight trains, improving railway operation efficiency and ensuring the safety and stability of train braking and relieving actions.

Quality Assurance

Every our railway air reservoir undergoes strict factory inspection and periodic type inspection, including surface quality detection, dimensional tolerance detection, weld defect inspection, ultrasonic weld testing, hydraulic pressure test, air tightness test and other full-item tests. All products pass standardized quality verification to meet high-standard railway operation requirements and provide reliable aftermarket quality guarantee for global railway equipment suppliers.

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