4" x 20' Cryogenic Transfer Hose — CL 150 — 280 PSIG

What pressure, flow and temperature is it rated for?

This hose is rated for 280 PSIG. Flow capacity depends on the internal corrugation profile and backpressure conditions, which are not specified in the listing—contact the seller for the flow curve or nominal inner diameter. Temperature rating is not provided; cryogenic transfer hoses are typically rated to handle fluids down to -320°F (LN2/LOX range), but verify the specific minimum design temperature with the seller.

What gases is it compatible with, and has it been oxygen cleaned?

The listing describes this as suitable for low-temperature fluid transfer applications but does not specify gas compatibility or oxygen cleaning status. Oxygen service requires CGA G-4.1 cleaning and specific material compatibility; ask the seller whether this hose has been cleaned for oxygen and what fluids it is rated for. New hoses are sometimes delivered in a general industrial clean condition unless oxygen service is specified at manufacture.

What should I inspect before putting it into service?

Inspect all flange faces and gasket seating surfaces for damage, verify the integrity of the outer jacket for cuts or abrasion, and check that end fittings are secure with no visible cracks or corrosion. Pressure test per your facility standards, and if intended for oxygen service, confirm cleaning certification and conduct a hydrocarbon contamination test. Even though listed as new, verify storage conditions haven't introduced moisture or contamination inside the hose.