4" x 18' Cryogenic Transfer Hose — 280 PSIG CL 150

What pressure, flow and temperature is it rated for?

This hose is rated for 280 PSIG. Flow capacity for cryogenic hoses this size typically ranges from 150-300 GPM depending on line pressure and liquid density, but the seller should confirm actual flow performance. Cryogenic hoses are generally rated for service temperatures from -320°F (LN2/LOX) up to ambient, though the specific temperature range for this unit is not stated.

What should I inspect before putting it into service?

Inspect the corrugated inner hose for cracks, kinks, or flat spots that indicate damage from improper handling or vehicle strikes. Check the vacuum jacket integrity by looking for frost patterns during a cold test—localized frosting indicates vacuum loss and poor insulation performance. Verify the swivel end fittings rotate freely, inspect all flange faces and gasket surfaces for damage, and pressure test to rated pressure before cryogenic service.