The 30172129 valve is engineered from high-strength alloy steel to withstand extreme drilling pressures. Its precision-machined internal spool ensures low-leakage performance and rapid response times under heavy loads. Designed for the NOV TDS series, it provides seamless integration with the hydraulic manifold to optimize fluid distribution. The robust construction resists abrasive particulates, extending the life of the control assembly. It is a dependable solution to prevent hydraulic failure and maximize rig uptime.