AOS trunnion mounted ball valves are designed in accordance with international standards featuring 2 pc or 3 pc split body side entry or top entry design with wide range of sealing material including PTFE, Peek, Devlon, Nylon etc. This series of valves are optional designed with double block and bleed or double piston type and can be used in working temperature range -46℃~500℃. All valves are equipped with sealant injection system for both stem and seats to allow external intervention to prevent seat or stem leakage. The top entry ball valve can be used for in-line maintenance services.
Body Material:
Cast Carbon steel, Stainless steel, Duplex steel
Design Standard:
API 6D
Quality Standard
MSS SP 55
All wetted component materials meet NACE MR0175 / ISO 15156 & NACE MR0103 / ISO 17945
Fire-Safe:
API 607, ISO 10497, API 6FA
Design Feature:
Blowout proof stem, Anti static, Double block and bleed, cavity pressure self relief, seat designed with dust proof and automatic cleaning function.