T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
WG9000360524
Sinotruk HOWO
| Attribute | Description |
|---|---|
| Part Name | Relay Valve (Air Brake Relay Valve) |
| Part Number (OEM) | WG9000360524 |
| Alternative Numbers | See Section 4 – Cross Reference |
| Function | Controls rapid supply and exhaust of compressed air to rear axle brake chambers |
| Valve Type | Pneumatically operated, differential piston relay valve |
| Design Standard | Complies with WABCO technical specifications; designed for high-flow performance |
| Material (Body) | High-quality die-cast aluminum alloy (corrosion-resistant) |
| Internal Components | Wear-resistant synthetic piston, rubber seals (NBR or HNBR), stainless steel springs |
| Working Principle | Uses pilot pressure from brake pedal valve to trigger main air flow from reservoir to brake chamber |
| Max Working Pressure | 10.0 bar (1.0 MPa) |
| Operating Temperature Range | -40°C to +80°C (-40°F to +176°F) |
| Weight | Approx. 1.2 kg – 1.5 kg (varies with mounting bracket configuration) |
| Port Configuration | • Port 1 (Supply Inlet): M22 x 1.5 • Port 2 (Outlet to Brake Chamber): M22 x 1.5 • Port 3 (Exhaust Port): Equipped with silencer or protective cap • Port 4 (Control/Input from Brake Valve): M16 x 1.5 |
| Flow Capacity | High-flow design enables fast charging and discharging of brake chambers |
| Certifications | ISO9001, CCC (China Compulsory Certification), meets GB12676 commercial vehicle safety standards |
Name1
Name2
Proper installation ensures optimal performance and safety. Follow these guidelines:
| Port | Function | Connection Requirement |
|---|---|---|
| Port 1 | Air Supply (from reservoir) | Connect to main air tank via M22×1.5 thread |
| Port 2 | Output to Brake Chamber | Route to rear wheel brake actuators |
| Port 3 | Exhaust Port | Must be open to atmosphere; install noise suppressor/silencer |
| Port 4 | Control Signal Input | From foot valve or ABS modulator (M16×1.5) |
Depressurize System: Drain all air pressure from the brake system before starting.
Clean Fittings: Ensure all air lines and connectors are free of moisture, oil, rust, and debris.
Mount Securely: Fix the relay valve using original brackets; avoid stress on ports.
Use Proper Seals: Install OEM-grade sealing washers or O-rings. Do not over-tighten fittings.
Avoid Thread Sealant Overuse: Never use excessive PTFE tape (Teflon tape); loose particles can clog internal passages.
Check Orientation: Mount vertically or as per original design to prevent water accumulation.
Leak Test: After repressurizing, check all connections and exhaust port (Port 3) for unintended leakage.
| Attribute | Description |
|---|---|
| Part Name | Relay Valve (Air Brake Relay Valve) |
| Part Number (OEM) | WG9000360524 |
| Alternative Numbers | See Section 4 – Cross Reference |
| Function | Controls rapid supply and exhaust of compressed air to rear axle brake chambers |
| Valve Type | Pneumatically operated, differential piston relay valve |
| Design Standard | Complies with WABCO technical specifications; designed for high-flow performance |
| Material (Body) | High-quality die-cast aluminum alloy (corrosion-resistant) |
| Internal Components | Wear-resistant synthetic piston, rubber seals (NBR or HNBR), stainless steel springs |
| Working Principle | Uses pilot pressure from brake pedal valve to trigger main air flow from reservoir to brake chamber |
| Max Working Pressure | 10.0 bar (1.0 MPa) |
| Operating Temperature Range | -40°C to +80°C (-40°F to +176°F) |
| Weight | Approx. 1.2 kg – 1.5 kg (varies with mounting bracket configuration) |
| Port Configuration | • Port 1 (Supply Inlet): M22 x 1.5 • Port 2 (Outlet to Brake Chamber): M22 x 1.5 • Port 3 (Exhaust Port): Equipped with silencer or protective cap • Port 4 (Control/Input from Brake Valve): M16 x 1.5 |
| Flow Capacity | High-flow design enables fast charging and discharging of brake chambers |
| Certifications | ISO9001, CCC (China Compulsory Certification), meets GB12676 commercial vehicle safety standards |
Name1
Name2
Proper installation ensures optimal performance and safety. Follow these guidelines:
| Port | Function | Connection Requirement |
|---|---|---|
| Port 1 | Air Supply (from reservoir) | Connect to main air tank via M22×1.5 thread |
| Port 2 | Output to Brake Chamber | Route to rear wheel brake actuators |
| Port 3 | Exhaust Port | Must be open to atmosphere; install noise suppressor/silencer |
| Port 4 | Control Signal Input | From foot valve or ABS modulator (M16×1.5) |
Depressurize System: Drain all air pressure from the brake system before starting.
Clean Fittings: Ensure all air lines and connectors are free of moisture, oil, rust, and debris.
Mount Securely: Fix the relay valve using original brackets; avoid stress on ports.
Use Proper Seals: Install OEM-grade sealing washers or O-rings. Do not over-tighten fittings.
Avoid Thread Sealant Overuse: Never use excessive PTFE tape (Teflon tape); loose particles can clog internal passages.
Check Orientation: Mount vertically or as per original design to prevent water accumulation.
Leak Test: After repressurizing, check all connections and exhaust port (Port 3) for unintended leakage.
