THD Herose GVMTB-G-B-ACAE — 8.0 PSIG Extended Stem Globe Valve

What pressure, flow and temperature is it rated for?

This valve is rated for 8.0 PSIG. The listing does not specify flow coefficient (Cv) or temperature range; ask the seller for the nameplate temperature limits and Cv value if sizing is critical. Extended stem cryogenic globe valves in this class are typically rated to -320°F for LN2 service, but confirm the specific rating for this unit.

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

The listing describes it as built for cryogenic service but does not identify the specific gas or previous service history. The listing does not state whether it has been oxygen cleaned. For oxygen service, any valve regardless of design requires proper cleaning and documentation; ask the seller for service history and whether oxygen cleaning records are available.

What materials are the wetted parts?

The body is bronze construction. The listing does not specify seat material, stem material, or packing type. Ask the seller for the complete materials of construction, particularly the seat and stem, as bronze bodies in cryogenic valves are often paired with stainless steel internals.

What should I inspect before putting it into service?

Check the seat for scoring or erosion, verify the stem moves freely through its full travel without binding, and inspect the packing gland and extended stem for frost damage or corrosion. Bench test for seat leakage at operating pressure and confirm the bonnet-to-body joint is tight. On cryogenic valves, examine the extended stem length to ensure it meets your installation requirements for keeping the packing above condensation zones.