DELVAL
SERIES F OIL & GAS FLOATING BALL
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βοΈ External grease fitting and internal lube channel in stem as standard, allows for effective lubrication
βοΈ Stem wiper seal prevents external attack of foreign abrasives
βοΈ Stem back seated and retained provides blowout-proof design
βοΈ βBear-Xβ bearing has excellent thermal, chemical and wear resistance
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β€ Body Type β Flanged (RF, RTJ), Buttweld
β€ Body β CS, SS
β€ Ball β 316 SS, CS + 3mil ENP
β€ Stem β RTFE, PEEK, Delrin, Devlon, Nylon, Ultra
β€ Seat β RTFE, PEEK, Devlon, Nylon, Viton
β€ Seat Seal β HNBR, FKM
β€ Size Range β 2" to 8β (DN 50 to 200), varies by rating
β€ Pressure Rating β Class 150 - 1500 Full and Reduced Bores
β€ Design Standard β API 6D, ASME B16.34
β€ Testing Standard β API 6D, API 598, ISO 5208