Giant Pumps 21381 Linear Shut-Off Gun – 4500 PSI

Linear Shut-Off Gun – 32 GPM, 4500 PSI, 1/2" FNPT (21381)

Description
Downloads

Description

The Giant Pumps 21381 linear shut-off gun is built for high-flow, high-pressure cleaning systems where you need dependable flow control at the gun. It handles up to 32 GPM with a rated working pressure of 4,050 PSI and a maximum pressure of 4,500 PSI.

Designed for hot water use up to 210°F, the 21381 uses 1/2" FNPT inlet and outlet connections to support high-flow systems without stepping down to smaller fittings at the gun. A piston-and-seat shut-off design controls the high-pressure flow, while the trigger and safety latch provide straightforward operation on the job. This high-pressure shut-off gun is intended for clean fresh water and can also be used with normal detergents as specified by Giant.

Best For

High-flow pressure washing systems
Hot water pressure washing equipment
Industrial cleaning systems
Applications requiring 1/2" high-flow connections

Downloads

Owner's Manual

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Linear Shut-Off Gun – 32 GPM, 4500 PSI, 1/2" FNPT (21381)

KEY FEATURES

High-Flow Capacity: Handles flow rates up to 32 GPM for demanding cleaning systems.
4,500 PSI Maximum Pressure: Rated for 4,050 PSI working pressure with a 4,500 PSI maximum pressure.
Hot Water Compatible: Designed for operating temperatures up to 210°F.
1/2" FNPT Connections: Uses 1/2" female NPT connections at both the inlet and outlet.
Linear Shut-Off Design: A piston acts on the seat to open and close the high-pressure flow, with spring-controlled return when the trigger is released.
Safety Latch: Helps prevent accidental trigger operation when engaged.