YVB4021B Pressure-Trapping Unloader – 21 GPM @ 4050 PSI, Multi-Gun Regulating Valve

Model: YVB4021B
Category: Pumps → Pump Accessories → Unloaders / Regulators
Type: Pressure-Trapping Unloader Valve – Multi-Gun Regulating Valve, Genuine OEM General Pump

The YVB4021B Pressure-Trapping Unloader is a genuine OEM General Pump regulating valve designed for high-flow, high-pressure pressure washer systems, including multi-gun setups. This pressure-trapping unloader maintains consistent operating pressure while protecting pumps and system components from pressure spikes when flow demand changes.

Specifications

• Maximum Flow: 21 GPM

• Rated Pressure: 4050 PSI

• Maximum Pressure: 4500 PSI

• Maximum Temperature: 195°F

• Inlet Port: 1/2″ NPT-F

• Outlet Port: 1/2″ NPT-F

• Bypass Port: 1/2″ NPT-F

Product Details

Brand: General Pump
OEM: Yes – Genuine General Pump Part
Application: Pressure Regulation / Pump Protection
Unloader Type: Pressure-Trapping, Multi-Gun Regulating Valve

Key Features

• Genuine OEM General Pump YVB4021B unloader

• Designed for multi-gun pressure washer systems

• Handles high flow rates up to 21 GPM

• Rated for 4050 PSI with 4500 PSI maximum

• Pressure-trapping design for stable pressure control

• Helps protect pumps, hoses, and system components

• Ideal for commercial and industrial pressure washing applications