- Size Range: Up to 36”
- Pressure Class: 150# to 2500#
- Material of construction: Carbon Steel (A105 and WCB ), Low alloys (F1-WC1, F11-WC6, F22-WC9), High Alloys (F91-C12A, F92 and Stainless Steel)
- Nickle alloys: Inconel, Monel, Hastelloy, Duplex, Super Duplex
- Hardfacing: Stellite, Chromium Carbide
- Materials 100% European.
- Full traceability of all components provided with strict application of the re-stamping procedure.
- Qualified fugitive emission ISO 15848-1 and can be supplied with certificate ISO 15848-2 on request.
DESIGN FEATURES
- The bellow is the most critical component and forms the heart of the Bellow Seal Valves.
- AISI 316Ti stainless steel contains Titanium to withstand high temperatures.
- Inconel 625 improves fatigue strength and corrosion resistance compared to stainless steel bellows.
- Hastelloy C-276 offers greater corrosion resistance and fatigue strength than Inconel 625.
- Fatigue resistance can be improved by using a multiply bellows system.
- Reducing the stroke length enhances fatigue resistance.