AR VRT3-310 Unloader Valve 4500 PSI with Black Spring – OEM Replacement Part

Part Number: VRT3-310
Category: Pressure Washer Components → Unloader Valves → Annovi Reverberi (AR) Pump Parts
Type: AR VRT3-310 Adjustable Unloader Valve with Black Spring

The AR VRT3-310 Unloader Valve is a genuine OEM pressure-actuated unloader designed for commercial and industrial pressure washer systems requiring reliable pressure regulation and pump protection. Rated for pressures up to 4,495 PSI and flow rates up to 8.0 GPM, this heavy-duty unloader valve provides precise pressure control while helping protect pumps and system components from excessive pressure buildup.

Key Features & Benefits

• Genuine Annovi Reverberi (AR) OEM Replacement Part
• Adjustable pressure-actuated unloader valve
• Rated up to 4,495 PSI
• Supports flow rates up to 8.0 GPM
• Oversized adjustment handle for easy pressure changes
• Heavy-duty forged brass valve body
• Dual inlet ports for installation flexibility
• Dual bypass ports for efficient system integration
• Color-coded spring and cap design for easy identification
• Replaces AR AL607 and AL607X unloaders

Technical Specifications

Manufacturer: Annovi Reverberi (AR)

Part Number: VRT3-310

Product Type: Adjustable Unloader Valve

Spring Color: Black

Maximum Pressure: 4,495 PSI

Maximum Flow Rate: 8.0 GPM

Maximum Fluid Temperature: 194°F

Valve Body Material: Forged Brass

Pressure Adjustment: Adjustable

OEM Replacement: Yes

Replaces: AL607, AL607X

Port Configuration

Inlet Ports (2):

• 3/8" FNPT

Discharge Port (1):

• 3/8" FNPT

Bypass Ports (2):

• 3/8" FNPT

Port Type:

• All ports are FNPT

Typical Applications

• Commercial pressure washers
• Industrial cleaning systems
• Fleet washing equipment
• Agricultural cleaning systems
• Contractor pressure washer trailers
• Equipment wash bays
• Mobile pressure washing rigs
• Custom pressure washer builds

Performance Advantages

• Provides accurate pressure regulation and control
• Helps protect pumps from excessive pressure buildup
• Supports smooth bypass operation during trigger release
• Heavy-duty forged brass body resists wear and corrosion
• Oversized adjustment handle simplifies pressure tuning
• Dual inlet and bypass ports increase installation flexibility
• Color-coded spring system simplifies product identification
• OEM-quality construction ensures reliable long-term performance
• Ideal for demanding commercial and industrial environments