Description

Overview

The PP3 Dash Control Valve delivers reliable in-cab control for trailer supply lines. It suits PP-3 style systems and, as a result, integrates easily with common tractor protection layouts. Moreover, fleets gain predictable operation thanks to clearly defined trip and recharge pressures.

Features

• Automatic tripper exhausts at 30 psi and recharges above 50 psi
• Plunger trips at 40 psi and allows manual charging
• Compact push-pull design for straightforward panel mounting
• Button and nut not included for flexible knob selection

Specifications and Materials

Part number: AB8339P.
Model: PP3. Supply port: 1/8 NPT. Delivery ports: 1/4 NPT and 1/8 NPT. Typical use: trailer supply control in two-line systems with tractor protection valves.
For deeper technical detail on PP-3 trailer supply valves and operation, see the official Bendix PP-3 service data

Compatibility and Fitment

Install the valve in the dashboard and route air lines to the specified supply and delivery ports. Then verify trip and recharge pressures during commissioning for correct interaction with the tractor protection valve.
This cross-reference listing means this valve is a suitable replacement for the part numbers shown. Some changes in air line plumbing may be required. ABC288746, 88746, 278821, 279579, 284387, 284387X, 034017, 279159, 280723, 280756, K288746, 20QE378P3, LPP5591, SA145, 401179, PP-3.

Compliance and Safety

Work on depressurised air systems only. Next, connect supply and delivery lines to the correct ports and torque fittings to spec. Finally, leak-test the system and confirm valve trip, recharge and manual functions before returning the vehicle to service.

Trailer Applications

Common applications include prime mover and trailer combinations requiring a PP-3 style push-pull dash valve. Additionally, this unit suits replacements where operators want defined 30/50 psi automatic trip and recharge behaviour with a 40 psi plunger trip.

Why Choose ICS Trailers

ICS Trailers sources proven air brake components and provides practical local support. Consequently, you receive clear specifications, competitive pricing and parts that fit. Browse the Air Brake Parts range at ICS Trailers