• Optional high lift ball spring relief reduces noise, heat, and chatter.
• Optional O-ring ports to eliminate leakage.
• Steel ball will not jam, lock, or seize and will always open.
• Chrome alloy steel ball is a grade No. 25 ball.
• Hardened alloy steel seat to reduce wear.
• Shot peened stress relieved steel spring to increase life and consistent results.

• Pressure rating: 3000 psi (207 bar).
• Pressure setting: 150-3000 psi (10-207 bar).
• Weight: 2 1/4 lbs (1.0 kg).

• Zinc plated steel body.
• Chrome alloy steel ball.
• Hardened alloy steel seat.
• Aluminum alloy body.

The Brand adjustable relief valve is precision-built, dependable, and low-priced. Both the RL and RLC are of the ball spring type, which is the most dependable type of relief valve. The ball will not jam, lock, or seize and will always open. The RLC offers an advantage over the RL option as the cracking pressure at low and high flow is virtually the same, and it is more stable when flow is traveling past the ball and spring.

• RL10-1500: Adjustable ball spring relief, all ports are #10SAE, relief set at 1500 psi (103 bar).
• RL50-1500: Adjustable ball spring relief, all ports are 1/2” NPT, relief set at 1500 psi (103 bar).
• RL75-2000: Adjustable ball spring relief, tank port is 1/2” NPT, pressure ports are 3/4” NPT, relief set at 2000 psi (138 bar).
• RLC75-3000: Adjustable high lift ball spring relief, tank port is 1/2” NPT, pressure ports are 3/4” NPT, relief set at 3000 psi (207 bar).
• RLC16-1500: Adjustable high lift ball spring relief, rated for 30 gpm (113 lpm), #16SAE all ports, manifold body, relief set at 1500 psi (103 bar).

Model codes are structured as RL followed by port size and relief setting. For example, RL75-1500 indicates a 3/4” NPT pressure port, 1/2” tank port, and a relief setting of 1500 psi.

Pressure vs. Flow charts are provided for RL and RLC models, showing the relationship between flow rates (in gpm and lpm) and pressure (in psi and bar).

Dimensions are provided in inches and millimeters for various models, detailing the size and port configurations.