Ball Valves for Propylene / Propene (C₃H₆) Service
Which ball valves configuration suits Propylene / Propene (C₃H₆) (C₃H₆), in which material, to which standard — from real service data, with the pitfalls flagged.
Which ball valves for Propylene / Propene (C₃H₆)?
Trunnion Ball Valve (WCB, fire-safe API 607) - Main isolation for propylene pipelines and storage sphere connections Floating Ball Valve (for smaller sizes) - DN15–DN50 isolation on propylene service lines Typical service window: 5–25 barg (liquefied storage and pipeline), −47°C (cryogenic storage) to +60°C (ambient).
Recommended Configurations
Trunnion Ball Valve (WCB, fire-safe API 607)
Main isolation for propylene pipelines and storage sphere connections
Floating Ball Valve (for smaller sizes)
DN15–DN50 isolation on propylene service lines
Body Material for Propylene / Propene (C₃H₆)
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Propylene / Propene (C₃H₆) Service
What to Avoid in Propylene / Propene (C₃H₆) Service
- Non-fire-safe valves in propylene storage areas
- Valves with dead legs that could allow propylene polymerisation
Service Considerations
- Fire-safe API 607 design mandatory - propylene is a Class IA flammable liquid
- ESD (emergency shutdown) valves required on storage sphere connections
- Low-temperature service at −47°C requires A350 LF2 or SS 316L bodies
- Potential polymerisation in dead legs - minimise dead volume in valve design
Other valve types for Propylene / Propene (C₃H₆)
Ball Valves for other services
Connected Engineering
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