Check Valves

Check Valves — New & Used

Check valves are essential one-way flow components used to prevent backflow in hydraulic, pneumatic, and fluid transfer systems. Designed to automatically allow flow in one direction while blocking reverse flow, they help protect pumps, compressors, and sensitive components from pressure surges or contamination. Available in ball, poppet, inline, and spring-loaded designs, check valves deliver dependable performance across a wide range of pressure and temperature conditions.

At Surplus Select, we carry a rotating stock of new and used OEM check valves from top manufacturers like Parker, Swagelok, Eaton, SMC, and Bosch Rexroth. Whether you’re maintaining fluid systems, repairing equipment, or building custom assemblies, our surplus inventory provides high-quality, tested valves at a fraction of distributor pricing.

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

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

Fast U.S. Shipping — Most orders ship same or next business day to minimize downtime.

Find Your Check Valve Fast (Search-First)

Search your part number (e.g., CV1-08, NRV-12, VCA-3).
No PN? Try specs: “1/4” NPT stainless check valve” or “hydraulic inline check valve”.
Need a specific OEM? Add the brand (e.g., Parker, Swagelok, or SMC).

Applications & Use Cases

Hydraulic systems: Prevent reverse oil flow and protect pumps and actuators.
Pneumatic systems: Maintain air direction and system pressure stability.
Water & process systems: Stop backflow in pipelines, pumps, and filters.
Vacuum & instrumentation: Control directional flow in sensitive measurement setups.
Maintenance & retrofits: Replace failing or obsolete valves in existing assemblies.

Why Buy Check Valves from Surplus Select

New & Used Options: Brass, stainless, and high-pressure check valves at surplus pricing.
Trusted Brands: Parker, Swagelok, Eaton, SMC, and Bosch Rexroth.
OEM Quality: Precision-tested for reliable one-way flow and long service life.
Fast Shipping: Same or next-day dispatch available from our U.S. warehouse.