Seat design
- Double piston effect downstream & upstream-DIB I
- Double piston effect downstream & single piston effect
- upstream-DIB II
- Seat sealing injector
Stem
- Stem sealing injector
- Stem or bonnet extension
- Locking device
Others
- Overlay on seat area or on all wetted parts
- Heating or cooling jacket
Connections
Flanged End: ASME B16.5 / GOST 12815-80 / EN 1092.1
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
Normative: ANSI / DIN
Design: API 6D / ISO 14313
Face to Face: ASME B16.10 / EN 558.1 Serie 27
Top Flange: ISO 5211
Press-Temp Ratings & Thickness: ASME B16.34
Test: API 6D / API 598 / EN 12266-1
Pressure Equipment Directive: PED 2014/68/EU Mod. H1
Equipment Directive: ATEX 94/9/EC
Fire Safe: API 6FA / API 607 / ISO 10497-2
Fugitive Emissions: Class”A” acc.to ISO 15484-2
Safety integrity level: Sil 2 acc.to IEC 61508
Material: NACE MR0175 Lastest Edition
Certification:EN 10204 type 3.1, (3.2 upon request)