Series 7-8 Trunnion Mounted Ball Valve

Trunnion mounted ball valve with flanged (RF, RTJ) or buttweld ends, sized 2" to 14" as Series 7 and 16" to 24" as Series 8, rated Class 150 to 1500 in full and reduced bores. Firesafe design is the default and NACE versions are available: a primary soft seal backs onto a secondary metal seat, and seats are SPE x SPE (DBB) as standard with DIB-1 and DIB-2 arrangements available.

Body type

Flanged (RF, RTJ), buttweld

Body

CS, SS, Duplex SS

Ball

CS + ENP, CF8M, CF3M, Duplex SS

Stem

410 SS, 316 SS, 304 SS, XM-19, Duplex SS

Seat

RTFE, PEEK, Devlon, Nylon, Viton

Seat seal

HNBR, FKM

Size range

Series 7: 2" to 14" (DN 50 to 350); Series 8: 16" to 24" (DN 400 to 600)

Pressure rating

Class 150 to 1500, full and reduced bores

Design standard

API 6D, ASME B16.34

Testing standard

API 6D, API 598, ISO 5208

Features

Cast body with ISO 5211 top plate for direct mounting; double seal combination of O-rings and fire safe spiral wound gasket for perfect body joint sealing; O-ring stem sealing with (2) pre-energised graphite seals for emission control; SPE x SPE seats as standard (DBB), DPE x DPE seats (DIB-1) and SPE x DPE seats (DIB-2) available; primary soft seal and a secondary metal seat for fire safe design; anti-blowout proof stem design; fully machined body bore provides less resistance to flow hence increasing flow