Seat design
- Double piston effect downstream & upstream – DIB I
- Double piston effect downstream & single piston effect upstream – DIB II
Stem
- Stem sealing injector
- Locking device
Others
- Nipple & Needle
- Overlay on seat area or on all wetted parts
- Heating jacket
Connections
Flanged End: ASME B16.5 / GOST 12815-80 / EN 1092.1
Butt Weld End: ASME B16.25
**integral nipples and available
Others