PG25 · 25% propylene glycol
PG25 denotes a nominal 25% propylene-glycol concentration; it is not a universal direct-to-chip default or a complete fluid specification. Name the product/base fluid, percentage basis, inhibitor package, water quality, materials compatibility, operating envelope, maintenance controls, and equipment warranty.
Current numbers
~7.5–12 °C (typical 10 °C)OCP's TCS guideline for cold-plate coolant rise, ~1.25–2.0 L/min per kW of PG25; your rack's flow curve sets the value
~10 °C (7.5–12 °C range)PG25 cold-plate (TCS) loop rise per OCP: 7.5–12 °C, typically 10 °C; flow 1.25–2.0 L/min per kW, nominal 1.5
~1.25–2.0 L/min/kWPG25 flow rule of thumb (OCP guideline); keeps the coolant rise across the TCS at ~7.5–12 °C