Seat design
- Self-relieving seat (cavity relief)
- Metal to metal seats
Stem
- Locking device
Others
- Drain plug
- Overlay on seat area or on all wetted parts
Connections
Socket Weld End: ASME B16.11
**integral nipples and available
Butt Weld End: ASME B16.25
**integral nipples and available
Threaded NPT End: ASME B1.20.1
Threaded BSPP OR BSPT: BS21
Others