SIL Classification – V Series, V1-R, NexTech®, ERV, TrunTech® series ball valves NexTech and TrunTech Trunnion Mounted Ball Valves, Cert No VAL 2103067 C001 R1.2, Surveillance Audit Due Apr-30-2025 V Series (V1-R, from V1-1 to V1-4) and ERV, Cert No VAL 2103067 C002, R1.3 Surveillance Audit Due Apr-30-2025