ACD Nikkiso TC-30 FC — 30.0 PSIG Cryogenic Pump

What flow and head is this rated for, and at what NPSH?

The listing does not provide flow rate, head, or NPSH specifications for this unit. ACD Nikkiso TC-series pumps are typically rated for cryogenic liquids like LIN, LOX, and LAr with performance curves varying by impeller trim and motor sizing, but you'll need to request the nameplate data or original pump curve from the seller to confirm this specific unit's capacity and required net positive suction head.

What should I inspect on a used pump before buying?

The unit was inspected but not fully tested at time of inventory, so a thorough onsite or video inspection is essential. Check for bearing condition by manually rotating the shaft (should turn smoothly with no binding or radial play), inspect seal faces and O-rings for cracking or compression set, examine the motor windings for moisture ingress, and verify the impeller and volute are free of erosion, cavitation pitting, or cryogenic embrittlement cracks. Request a hydrostatic pressure test and no-load motor run if feasible.