AS-Schneider engineers have been given the task of consistently transferring the tried-and-tested valve technology of the successful ISO FE Series to the OS&Y valve bonnets of the AS-Schneider Process Monoflange. The new OS&Y valves now satisfy even the maximum endurance category CO3 (2,500 mechanical / 4 thermal cycles) for the top tightness class ‘A’.
All three types were tested and certified in accordance with the stringent requirements of ISO 15848-1 and therefore meet the maximum requirements in terms of endurance and tightness. TÜV SÜD certified the two-week long type test.
ISO FE valve bonnets can be supplied in the three tried-and-tested AS-Schneider designs.
Pressure rating 420 bar / Class 2,500 applies to all types:
1) ISO FE Type 1 with a sealing system of FPM O-ring + graphite packaging and performance data of Class A: 2,500 cycles / –29°C to 40°C, Class A: 500 cycles / –29°C to 200°C and Class B: 2,500 cycles / –29°C to 200°C
2) ISO FE Type 2 with a sealing system of FPM O-ring + graphite packaging and performance data of Class A: 2,500 cycles / –29°C to 40°C, Class A: 1,500 cycles / –29°C to 200°C and Class B: 2,500 cycles / –29°C to 200°C
3) ISO FE Type 3 with a sealing system of PTFE / carbon-filled PTFE and performance data of Class A: 2,500 cycles / –29°C to 40°C and Class B: 2,500 cycles / –29°C to 200°C.