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3-Port Direct-Acting Relief Valve, Pressure: 3/4 NPT, Tank: 1/2 NPT, 150-3000 PSI Range

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Description & Features

Designed to ensure optimal performance in industrial settings, this relief valve features precision in-line mounting, a hardened, replaceable seat, and a maximum operating pressure of 3000 PSI. The adjustable range is 150-3000 PSI, and it comes equipped with a maximum flow rate of 20 GPM, facilitating efficient pressure regulation.

Ports include a 3/4 NPT pressure port and a 1/2 NPT tank port, making it suitable for diverse hydraulic applications. The adjustment screw is located underneath a removable cap, offering straightforward configuration while maintaining a robust and durable design.

BRAND HYDRAULICS INC. has engineered this direct-acting ball type relief valve for reliability in demanding environments. The build quality and component integration ensure long-lasting functionality and consistency without the need for frequent maintenance.

Supplier Part Number: RL-75-1500

MPN: RL-75

Specifications

Adjustable Range
150-3000
Adjustment
No
Check Valve
No
Diode
No
Brand
Brand Hydraulics Inc.
Brand
Brand Hydraulics
Pack Size
1.00
UOM
EA
Electrical Flag
No
Ports
Pressure: 3/4 NPT, Tank: 1/2 NPT
Ports
Pressure: 3/4 NPT, Tank: 1/2 NPT
Remote Control
No
Supplier Part Number
RL-75-1500
Switch Connector
No
Alternate Part Numbers
Alternate Part Number C1DB36, Alternate Part Number C1DK23, Alternate Part Number MI-02186524, Alternate Part Number MINO-00127X20152, Alternate Part Number RL-75-1500, Alternate Part Number RL75, Alternate Part Number RL75-1500
Product Weight
2.40 lbs

Similar Products

Model Number Adjustable Range Ports Price Action
3-Port Direct-Acting Relief Valve, Pressure: 1/2 NPT, Tank: 1/2 NPT, 150-3000 PSI Range

RL-50 3-Port Direct-Acting Relief

150-3000

Pressure: 1/2 NPT, Tank: 1/2 NPT

Product Questions & Answers (3)

Question by: Glen P on Feb 23, 2026, 11:59 AM
i’ve got a line where i need to dump pressure back to tank, what ports does this relief valve actually have?
Answer by: Customer Support on Feb 25, 2026, 7:35 AM
Porting is set up with a 3/4 NPT pressure port and a 1/2 NPT tank port, so it can be plumbed in-line and return flow back to tank through the smaller NPT connection.
Question by: Ray R on Jun 22, 2025, 4:08 PM
adjustment screw being under the cap - does that make it harder to fine-tune the pressure out in the field, or is it pretty easy to get to once you pull the cap off?
Answer by: Customer Support on Jun 24, 2025, 1:25 PM
Pulling the cap off is straightforward, and once it's off the adjustment screw is right there. The cap just keeps it protected during operation, so it's not like you're fighting through anything to get to it. For field adjustments, it's about as accessible as you'd want on an inline valve like this.
Question by: Rick P on Feb 23, 2026, 9:13 PM
got a skid unit that needs an in-line relief, are these ports 3/4 npt on pressure and 1/2 npt on tank?
Answer by: Customer Support on Feb 25, 2026, 2:16 PM
Port sizing is set up with a 3/4 NPT pressure port and a 1/2 NPT tank port, and it is meant for in-line mounting.