State the body material and grade
“Stainless valve” can refer to a body, disc, shaft or trim component. The RFQ should identify which pressure-boundary and wetted parts require a stainless grade.
Material-led project selection
Ductile Iron & Stainless Steel Valve Options
Ductile-iron butterfly valve construction and selected stainless body, disc, shaft and trim options extend the HENO portfolio for project-specific material requirements.
Material options
Choose the body and wetted materials for the service
Ductile iron provides a widely used industrial body-material route, while stainless grades can be selected for the body, disc, shaft or trim where the medium or project specification requires them.
- DIDuctile-iron butterfly valves
A traditional body-material choice for water and general industrial systems, subject to lining, seat and service selection.
- SSStainless material configurations
Options include 304 / 316 discs, 410 / EN 1.4057 shafts and selected CF8 / CF8M body or trim combinations.
- RFQDrawing-led quotation
Size, pressure, connection, seat, disc, shaft, body grade, operator and test requirements must be tied to one model.
Material map
Available material routes
The final material combination is selected for the medium, pressure, temperature, connection and valve design.
| Material route | Available examples | Selection use | Confirm in RFQ |
|---|---|---|---|
| Ductile-iron butterfly valve | Ductile-iron body configurations | Water and general industrial service selection | Model, size, pressure rating, connection, seat, disc and actuation |
| Stainless disc / shaft | 304 / 316 disc and 410 / EN 1.4057 shaft options for HF-520 | Wetted-component and shaft material selection | Exact grade and combination for the selected size and duty |
| Stainless high-performance construction | CF8 / CF8M and selected stainless trim combinations | Offset soft-seat or metal-seat valve projects | Model, pressure class, drawing, bill of materials and tests |
| Stainless structural body for lined valves | Selected stainless structural body options | Projects combining a stainless pressure boundary with a lined wetted path | Body grade, lining system and product-specific range |
Define every wetted material
Seat, lining, disc, shaft, fasteners and seals must be reviewed with the medium rather than inferred from the body material.
Supply the flange and pressure system
Nominal size alone does not establish dimensions or allowable pressure. Include PN or Class, standard, facing and service temperature.
Name the required documents
Request drawings, material records, pressure tests or project inspection points with the quotation.
Selection support
Turn a material preference into a documented valve specification.
Send the medium, pressure, temperature, nominal size, flange, required body and wetted-material grades, operator and test documents for review.