- Bolted Bonnet
- ASME Class 150 (Figure No. 1531) and 300 (Figure No. 3031)
- Cast carbon, stainless steel or alloy steel
- Flanged ends or butt weld ends
- Standard trim is API trim 12 with 316Ti bellows
- Each valve is shell, seat and backseat pressure tested per industry standard API 598
- Bellows are hydro-formed rather than welded