General Pump YU21405 Trapped Pressure Unloader Valve – Green Spring

$259.50

Specifications Summary:

  • Flow: 21.0 GPM

  • Rated Pressure: 4,050 PSI

  • Maximum Pressure: 4,500 PSI

  • Inlet Ports: (2) ½″ NPT-F

  • Outlet Port: ½″ NPT-F

  • Bypass Ports: (2) ½″ NPT-F

  • Maximum Fluid Temperature: 200 °F

  • Ship Weight: 3.1 lbs.

Description:
The General Pump YU21405 is a high-capacity, green-spring trapped pressure unloader valve designed for demanding industrial pressure washer systems. With a rated flow of 21.0 GPM at 4,050 PSI and a maximum pressure rating of 4,500 PSI, this valve excels in large-scale cleaning rigs, multi-gun systems, or high-volume pump applications.
Manufactured with robust brass construction and stainless-steel internals, the valve features dual inlet and bypass ports to easily integrate into complex systems. The green spring identifies it as a high-flow model in the General Pump lineup.
Ideal for operations needing dependable pressure regulation and system protection, the YU21405 ensures smooth, reliable performance under heavy use.

Key Features:

  • High-flow capability: 21.0 GPM rating for large systems

  • Heavy-duty design: Brass body and stainless internals for long life

  • Dual bypass ports: (2) ½″ bypass for systems requiring large relief volume

  • Green-spring coded: Easy identification for service and replacement

  • Versatile ports: Dual inlets, large outlet, oversized bypass—fits heavy equipment setups

  • High temperature rating: 200 °F supports hot-water or rugged duty use

Applications:

  • Heavy-duty pressure washer systems with high volume and pressure demands

  • Fleet wash or mining/industrial cleaning rigs requiring multi-gun or high-flow operations

  • Replacement or upgrade for pump systems where large flow and high PSI are required

  • Systems requiring robust unloader valves built for continuous service

Specifications Summary:

  • Flow: 21.0 GPM

  • Rated Pressure: 4,050 PSI

  • Maximum Pressure: 4,500 PSI

  • Inlet Ports: (2) ½″ NPT-F

  • Outlet Port: ½″ NPT-F

  • Bypass Ports: (2) ½″ NPT-F

  • Maximum Fluid Temperature: 200 °F

  • Ship Weight: 3.1 lbs.

Description:
The General Pump YU21405 is a high-capacity, green-spring trapped pressure unloader valve designed for demanding industrial pressure washer systems. With a rated flow of 21.0 GPM at 4,050 PSI and a maximum pressure rating of 4,500 PSI, this valve excels in large-scale cleaning rigs, multi-gun systems, or high-volume pump applications.
Manufactured with robust brass construction and stainless-steel internals, the valve features dual inlet and bypass ports to easily integrate into complex systems. The green spring identifies it as a high-flow model in the General Pump lineup.
Ideal for operations needing dependable pressure regulation and system protection, the YU21405 ensures smooth, reliable performance under heavy use.

Key Features:

  • High-flow capability: 21.0 GPM rating for large systems

  • Heavy-duty design: Brass body and stainless internals for long life

  • Dual bypass ports: (2) ½″ bypass for systems requiring large relief volume

  • Green-spring coded: Easy identification for service and replacement

  • Versatile ports: Dual inlets, large outlet, oversized bypass—fits heavy equipment setups

  • High temperature rating: 200 °F supports hot-water or rugged duty use

Applications:

  • Heavy-duty pressure washer systems with high volume and pressure demands

  • Fleet wash or mining/industrial cleaning rigs requiring multi-gun or high-flow operations

  • Replacement or upgrade for pump systems where large flow and high PSI are required

  • Systems requiring robust unloader valves built for continuous service