⛟ Heavy-Duty Brass Air Brake Cut Off Shut Off Valve with 3 Optional Styles for Semi Trucks & Trailers

Core Features

🚨 Essential Emergency Solution for Truck Drivers

When your brake diaphragm ruptures and causes sudden air pressure loss, installing this shut-off valve blocks the leaking brake line instantly. You no longer need to wait for costly roadside maintenance or replace the whole brake assembly temporarily, greatly saving your repair cost and avoiding long traffic delays on highways.

🛡️ Premium Solid Brass Valve Body with Excellent Sealing Performance

The main valve body is made of thickened brass, paired with iron threaded joints and an aluminum valve core. It features high pressure resistance, rust resistance and tight sealing, effectively preventing air leakage even under long-term high-pressure brake system working conditions. The compact short structure saves installation space and fits tightly into narrow chassis mounting positions.

🔧 Three Universal Styles to Meet Different Installation Needs

M18-M18 Air Brake Cut Off Valve with Automatic Exhaust Function: After closing the valve, residual air inside the pipeline will be automatically discharged for safer maintenance operation.

M18×1.5 Brass Shut Off Valve: Standard common specification, with one M18×1.5 male thread and movable female nut for flexible installation angle adjustment.

M22-M18 Air Cut Off Switch: Converts M22 thread to M18 thread, perfect for cross-spec pipeline conversion and retrofitting old vehicle brake systems.

All three styles adopt M18 thread standard, widely compatible with semi-trucks, cargo trailers, dump trucks and various heavy-duty commercial haulers.

🎛️ Simple Manual Operation & Convenient Installation

Equipped with an iron quarter-turn handle, you just rotate 90 degrees to fully open or cut off the air pipeline. The movable female nut design avoids twisting the brake pipeline during assembly, making on-site installation fast and labor-saving for truck maintenance workers and long-haul drivers.

Product Specifications

Material: Thickened brass valve body, iron thread connectors, aluminum valve core
Applicable Vehicles: Semi trucks, trailers, dump trucks, heavy-duty transport haulers and most commercial vehicles

Package Includes

1 x Air Brake Cut Off Shut Off Valve (Choose your required thread style)