YACO 1/4″ NPT Carbon Steel Check Valve – 3000 PSI

Built for durability and performance, this YACO 1/4″ NPT inline check valve is the no-frills solution for protecting hydraulic cylinders, pumps, and compressors from backflow and pressure loss. Made from CNC precision-machined carbon steel, it delivers a tight seal and consistent operation—without the premium price tag of stainless steel alternatives. Whether you're working with hydraulic oil, water, or gas, this valve maintains system integrity by preventing reverse flow while allowing forward pressure with minimal restriction.

Designed for real-world conditions, it features a 3000 PSI working pressure rating and operates reliably across a wide temperature range (-20°C to +180°C / -4°F to +356°F). Every valve undergoes rigorous oil pressure testing to ensure quality, and its low cracking pressure (0.35 MPa / ~50 PSI) allows instant response—protecting your equipment from water hammer and backflow damage. Ideal for cylinder holding, pump discharge, and hydraulic manifolds, this valve is the practical choice for professionals who prioritize dependability over unnecessary complexity.