Jackson Turbine Shut Off Valve Unit 3 and 4 30-inch TIV Replacement Project

The Snohomish County Public Utility District is procuring two new 30‑inch turbine inlet guard (TIV) valves for Units 3 and 4 of the Henry M. Jackson Hydroelectric Project. The supplier must design, fabricate, test, deliver, and support full‑port ball or spherical valves with hydraulic actuators, all required accessories, and provide field installation assistance, testing, commissioning, spare parts, and comprehensive documentation. The valves must meet strict hydraulic, pressure, material, and leakage specifications, be ISO 9001:2015 certified, and have a service life of at least 30 years. Delivery is slated for 2028 with a bid opening teleconference on the deadline date. • Supply two 30‑inch full‑port turbine inlet guard valves (triple‑offset or equal performance) • Provide matching hydraulic actuators (Shafer‑type or equivalent) and all hardware (flanges, lugs, bypass, vent/drain valves, etc.) • Perform factory testing, field testing, and startup assistance (minimum two on‑site trips per valve) • Deliver detailed shop drawings, performance curves, material test reports, O&M manuals, and spare‑part kits • Meet ISO 9001:2015, ASME, AWWA, ASTM, and relevant EN standards • Must be capable of zero leakage (0 drops/min) and operate under 507 psi differential pressure, 30‑120 sec opening/closing times • Provide warranty, warranty‑related re‑testing, and on‑site training for owner staff