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3-Port Direct-Acting Relief Valve, Pressure: 1/2 NPT, Tank: 1/2 NPT, 150-3000 PSI Range

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Description & Features

The 3-Port Direct-Acting Relief Valve, Pressure: 1/2 NPT, Tank: 1/2 NPT, 150-3000 PSI Range from Brand Hydraulics Inc. ensures efficient, precise pressure control in industrial applications. In-line mounting allows for seamless integration into existing systems.

Constructed with a hardened, replaceable seat, this valve is designed for durability and easy maintenance. The adjustable pressure range from 150 to 3000 PSI provides versatile application options to meet a variety of demands.

The product features an adjustment screw located underneath a removable cap, facilitating simple pressure adjustments without the need for additional tools. It supports a maximum flow rate of 20 GPM and can operate under pressures up to 3000 PSI.

Additionally, precision-built components ensure reliable performance and longevity, making it an ideal choice for hydraulic systems requiring consistent pressure regulation.

Supplier Part Number: RL50-1000

Specifications

Actuator Type
Manual
Adjustment
Without Adjustment
Body Material
Steel
Check Valve
Without Check Valve
Connection Type
NPT
Diode
Without Diode
Disc Material
Steel
Electrical Flag
No
grp Adjustment Style
Adjustment Knob with Locking Nut
Media
Hydraulic Oil
Nominal Size
1/2 in
Ports
Pressure: 1/2 in NPT, Tank: 1/2 in NPT
Remote Control
Without Remote Control
Series
RL Series
Switch Connector
No

Product Questions & Answers (6)

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Question by: Harold C on Jul 27, 2025, 7:00 AM
I need a relief valve that can handle up to 3000 PSI. Will this one do the trick?
Answer by: Customer Support on Jul 29, 2025, 6:26 AM
Designed for systems requiring precise pressure control, this 3-port relief valve is rated up to a maximum operating pressure of 3000 PSI, so it should work well for your application.
Question by: Dwight P on Dec 4, 2025, 9:59 AM
Got a system running at about 2200 PSI and need a relief valve that'll handle that without being right at the top of its range. This one go up to 3000?
Answer by: Customer Support on Dec 6, 2025, 6:51 AM
Rated up to 3000 PSI, so 2200 gives you a comfortable margin before you're anywhere near the ceiling. The adjustable range starts at 150 PSI and runs the full way up, so you can dial it in right where your system needs it. Adjustment is made through a screw underneath a removable cap, which keeps it from getting bumped out of setting during normal operation.
Question by: Jimmy J on Dec 14, 2025, 8:26 AM
got a skid steer attachment that needs a simple in-line relief. is this one adjustable from 150 up to 3000 psi?
Answer by: Customer Support on Dec 15, 2025, 3:36 PM
For setting pressure, it covers an adjustable range of 150 to 3000 PSI, and the adjustment is made with a screw that sits underneath a removable cap.
Question by: Travis T on May 21, 2025, 12:03 PM
Will this handle a constant workload or is it more for occasional use?
Answer by: Customer Support on May 23, 2025, 11:32 AM
This valve is built with precision components to ensure reliable performance and longevity in hydraulic systems needing consistent pressure regulation.
Question by: Tommy S on Feb 3, 2026, 6:11 AM
adjustment screw, is that something you can get to without pulling the whole valve out of the line?
Answer by: Customer Support on Feb 4, 2026, 12:23 PM
The screw sits underneath a removable cap, so you can reach it while the valve stays in place. No need to break the line or pull anything apart just to dial in your pressure setting. That makes field adjustments a whole lot more practical on a working machine.
Question by: Cody M on Apr 8, 2025, 2:25 PM
got a power unit with 1/2 npt lines. are the ports on this relief valve both 1/2 npt, or am i gonna need adapters
Answer by: Customer Support on Apr 10, 2025, 6:57 AM
Port sizing is straightforward on this one. The pressure port is 1/2 NPT and the tank port is also 1/2 NPT, so it matches 1/2 NPT hydraulic connections on both connections.

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