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The KOZO 904L Stainless Steel Ball Valve is designed for corrosive chemical and acid-handling service where UNS N08904 / 904L construction is preferred. Depending on size and pressure class, the valve can use floating or trunnion-mounted ball construction.
Why 904L?
904L is a high-alloy austenitic stainless steel containing elevated nickel, chromium and molybdenum with copper additions. It is selected in certain sulfuric-acid, chloride-containing and chemical environments where conventional 316L may not provide enough corrosion margin. Compatibility must still be checked against concentration, temperature and contaminants.
Principais recursos de design
- 904eu / UNS N08904 pressure-containing components.
- Floating or trunnion design according to size and class.
- PTFE, RPTFE, PEEK or metal-seat options.
- Flanged or welded end connections.
- Manual, pneumatic or electric actuation.
Especificações Técnicas
| Tipo de válvula | Válvula de esfera |
|---|---|
| Material do corpo | 904eu / UNS N08904 |
| Seat Options | PTFE / RPTFE / PEEK / Assento Metálico |
| Terminar conexão | Flangeado / Solda de topo |
| Operação | Manual / Pneumático / Elétrico |
| Serviço Típico | Acid / Corrosive Chemical Process |
Aplicações Típicas
- Sulfuric-acid systems where 904L is compatible
- Chemical production
- Fertilizer plants
- Corrosive process utilities
Selection Notes
Do not select 904L solely from alloy name. Acid concentration, chloride content, oxidizing/reducing conditions, temperature and trim/seat compatibility must be reviewed.
How to Specify
Please provide size, classe de pressão, process chemistry, concentração, temperatura, assento, trim, connection, actuator and documentation requirements.
Perguntas frequentes
Why choose 904L instead of 316L?
904L is considered when additional alloy content is needed for selected acid or chloride-containing environments, subject to an actual compatibility review.
