DELVAL

Series 7/8 Trunnion Mounted Ball

SPECIFICATIONS

● 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 - 1500 Full and Reduced Bores

● Design Standard: API 6D, ASME B16.34

● Testing Standard: API 6D, API 598, ISO 520

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-energized 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