Relief Valves

Relief Valves — New & Used

Relief valves protect hydraulic, pneumatic, and fluid systems by releasing excess pressure before equipment damage can occur. They ensure safe operation in pumps, cylinders, piping, compressors, and controlled-pressure circuits.

At Surplus Select, we stock new and used OEM relief valves including spring-loaded, adjustable, pilot-operated, and cartridge-style models. Our surplus pricing helps maintenance teams, OEMs, and repair operations source dependable pressure-safety components quickly and affordably.

Price Match — We match any authorized distributor on identical in-stock parts, so you can source parts at surplus pricing with distributor-level assurance.

Trade-In Credit — Have quality new surplus items? Trade them in for store credit toward the parts you actually need.

Fast U.S. Shipping — Most orders ship same or next business day from our U.S. warehouse to keep your line running.

Find Your Relief Valve Fast (Search-First)

Search by type or rating (e.g., hydraulic relief valve 3000 psi, pilot-operated, cartridge valve ½″ NPT).
No part number? Try descriptors like “adjustable relief valve”, “pressure safety valve”, or “pneumatic relief valve”.
Need specific capabilities? Add pressure range, port size, media (air/oil/water), or mounting style to refine the search.

Applications & Use Cases

Hydraulic systems: Protect pumps, actuators, lines, and cylinders from overpressure events.
Pneumatic systems: Regulate safe pressure levels in air circuits, compressors, and tooling.
Fluid & process systems: Ensure safe operation in coolant lines, lubrication systems, and liquid transfer loops.
Maintenance & retrofits: Replace aging valves to maintain system safety and compliance.
OEM builds: Integrate relief valves into new equipment needing dependable pressure protection.

Why Buy Relief Valves from Surplus Select

New & Used Options: OEM relief valves — adjustable, spring-loaded, pilot-operated, cartridge-style — at surplus pricing.
Reliable Protection: High-quality valves designed to prevent equipment failure and maintain safe operation.
Affordable Sourcing: Reduce costs on critical safety components without compromising performance.
Fast Shipping: Most orders ship same or next business day to keep your systems operating safely.