The orange ball float traps you see on every steam main and heat exchanger in refineries and chemical plants
Everyone has tried the cheap Chinese copies – they stick closed after six months and flood the steam line. The Spirax FT14 (cast iron) and FT44 (carbon/stainless steel) just keep working. The big stainless ball float never hangs up, the air vent is a proper bimetallic ring that actually opens when cold, and the whole thing is built like a tank. Most plants pull them out after 12–18 years only because the gasket finally leaks, not because the trap failed.
| Sizes | DN15 – DN50 (½" – 2") |
| Body | FT14: Cast iron | FT44: Carbon steel or SG iron |
| PMO | 4.5 / 10 / 14 / 21 / 32 bar versions |
| Connections | Screwed BSP/NPT, flanged PN16–40, ANSI 150–300 |
| Capacity | up to 25 ton/h cold water at 10 bar diff |
Q: Can I repair it in line?A: Yes – four bolts, change seat and ball, back running in half an hour.
Q: Will it freeze outdoors?A: No – built-in thermostatic vent closes when cold, body stays full of water.
Phone/WhatsApp/WeChat: +8615000725058
Email: edwardzhao@gbsxj.com