Duty inputs
Gather the duty inputs before selecting.
A reusable request checklist for making the heat load, interface and controls clear.
SELECTION GUIDES
Selection guides
Three guides cover duty inputs, medium routing and flange interfaces, with links to related product details and inquiry paths.
View all resources and applications ↗Selection records
Selection guides
View selection guide
Liquid or gas
Liquid and gas: start on the right table.
Both ZHGD and ZHFL keep liquid and gas as separate fields. Check dimensions, tube counts and connections with the medium.
Flange dimensions
For flange heaters, list the full interface.
The size table is a starting point; flange, sheath and vessel interfaces need separate descriptions.