DELVAL
SERIES 44-49 HIGH PERFORMANCE DOUBLE OFFSET
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✔︎ ISO 5211 top plate for direct mounting of a wide range of actuators, handles, and gears
✔︎ Adjustable stem packing features pull down gland with easy access without removal of actuator
✔︎ Tangential wedge pins are offset from center of stem putting them in compression rather than shear
✔︎ Disc stop designed to prevent disc rotation in wrong direction and potential seat damage
✔︎ Retainer clip provides blow-out proof stem
✔︎ Live-loaded stem seal system by a set of Belleville springs. Rocker shaped gland bridge compensates for uneven adjustment of gland bolts
✔︎ “Bear-X” bearing has excellent thermal, chemical and wear resistance
✔︎ One piece body with extended neck
✔︎ Self-energizing flexible lip seal soft seat design. Two points of contact on firesafe metal seat design
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➤ Body Type → Wafer, Lug, Double Flanged
➤ Body → CS, SS
➤ Disc → CF8M, CF8
➤ Stem → 316 SS, 17-4 PH, XM-19
➤ Seat → Ultra PTFE, RTFE, Metal (SS, Inconel) Firesafe
➤ Size Range → Series 44, 45 – 2" to 48“ (DN 50 to 1200),Series 47, 48 – 2” to 24” (DN 50 to 600),Series 46 – 3" to 48“ (DN 80 to 1200),Series 49 – 3" to 24“ (DN 80 to 600)
➤ Pressure Rating → Series 44, 45, 46 - Class 150,Series 47, 48, 49 - Class 300
➤ Leakage Class → Soft seat – Class VI,Metal seat – Class IV
➤ Design Standard → API 609 Category B, BS EN 593
➤ Testing Standard → API 598, BS EN 12266-1