Hydrogen Ball Valves
Hydrogen ball valve selection requires focused review of material compatibility, stem sealing, fugitive emissions, leakage control and project qualification requirements.
Define the operating envelope before selecting the valve construction.
Hydrogen ball valve selection requires focused review of material compatibility, stem sealing, fugitive emissions, leakage control and project qualification requirements.
Base valve construction still matters
After the service condition is defined, select the underlying floating, trunnion mounted, top entry, fully welded or DBB design according to size, pressure, maintenance access and isolation duty.
Information to include in the RFQ
Include hydrogen concentration, pressure, temperature, material requirements, leakage or emission criteria and any project qualification requirements in the RFQ.
Key design questions for hydrogen ball valves.
Use these points to define the project design envelope and qualification requirements.
Hydrogen Service Definition
Specify hydrogen concentration, pressure, temperature, purity and the operating conditions that define the service.
Material Compatibility
Define the project material requirements for pressure-containing parts, trim, bolting, seals and packing.
Stem Sealing / Emissions
Specify the required fugitive-emission or leakage criteria and any packing or stem-sealing requirements.
Qualification Requirements
Include any project-specific hydrogen qualification, emissions testing or acceptance criteria in the RFQ.
Technical documents for project review.
For technical evaluation, request the applicable product documents and inspection records for the offered valve configuration.
Product Photos
Additional finished-valve, nameplate and component photos are available for the selected valve configuration.
GA Drawing / Datasheet
GA drawings and datasheets are prepared for the selected size, pressure class and valve configuration.
Testing & Inspection Records
Inspection documentation can include pressure testing, dimensional inspection, PMI, NDE/NDT and coating records as required by the project.