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Good Quality Truck Brake Parts Relay Valve Assembly 3527010-92100 for Dongfeng Tianlong Truck

The Part Number 3527010-92100 is a Relay Valve Assembly (also known as Quick Release Relay Valve or Air Relay Valve), a critical component in the pneumatic braking system of heavy-duty commercial vehicles. Designed for fast and efficient air signal transmission, this relay valve significantly reduces response time during brake application by delivering full reservoir pressure directly to the wheel brake chambers (air brakes) upon receiving a low-pressure control signal from the foot valve or ABS modulator.

As a core element of dual-circuit air brake systems, it ensures balanced, rapid, and reliable braking performance across axles — especially vital for large trucks, trailers, and buses operating under high-load conditions. This model is widely used on Dongfeng Commercial Vehicles and other Chinese-made heavy trucks equipped with standard pneumatic brake architecture.
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  • 3527010-92100

  • Dongfeng

Attribute Description
Product Name Relay Valve Assembly / Quick Release Relay Valve
OEM Part Number 3527010-92100
Function Amplifies pilot air signal to apply full-service brake pressure quickly
Application Pneumatic Brake Systems – Front/Rear Axle Brake Circuits
Valve Type Diaphragm-Type Relay Valve with Inlet, Outlet, Exhaust Ports
Control Signal Input Low-pressure pilot line from brake pedal valve or ABS unit
Output Function Delivers high-volume compressed air from main reservoir to brake chambers
Release Feature Fast exhaust design for quick brake release and reduced drag
Mounting Style Bracket-mounted with rubber bushing or metal flange
Sealing Material Nitrile Rubber (NBR) or HNBR for oil and temperature resistance
继动阀总成-2


继动阀总成-3


Parameter Specification
Operating Pressure Range 0.5 MPa – 1.0 MPa (72–145 psi)
Nominal Port Sizes - Supply Port (P): G1/4" or ISO 1/4" NPT
- Control Port (S): G1/4"
- Output Port (A): G1/4"
- Exhaust Port (E): Open muffler or hose barb
Response Time ≤ 0.2 seconds (from signal input to full output)
Exhaust Speed Rapid depressurization to minimize brake dragging
Flow Capacity (CV Value) High-flow design (~2.5–3.0 Cv), supports multi-chamber operation
Working Medium Compressed Air (dried and filtered)
Temperature Range -40°C to +80°C (-40°F to 176°F)
Protection Class IP65 – Dust-tight and protected against water jets
Weight Approx. 1.1–1.3 kg
Material Construction Die-cast aluminum body, stainless steel fasteners, internal rubber diaphragms


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