51321 STEV Sensing Trailer Emergency Valve with 1/4-Inch Supply and Control Ports

Description

Provides Spring Brake Priority for Direct Control of Trailer Spring Brakes. The logic of the TEV valve retains the ability of the driver to repeatedly apply and release the Parking/Emergency brakes, even with a damaged tank.

• Prevent spring brake drag.
• Sealed hard anodized finish: 200 hours of salt spray resistance!
• Use a single air tank allows the elimination of the protected reservoir.
• Small size is gentle on tanks, weighs less than two pounds
• Easy installation & conversion from old systems
• Fully compatible with anti-lock systems

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