FEATURES
- ISO 5211 top plate for direct mounting of a wide range of actuators, and gear boxes
- 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 and firesafe seat design with bidirectional sealing
Series 38
High-Performance Double Offset Butterfly Valve Low Pressure Rating
Full Specification
- Product Series
- 37, 38 & 39
- Size range
- 16" to 54" (DN 400 to DN 1350)
- Pressure Rating
- 100 PSI (PN 7)
- Design Standards
- API 609, BS EN 593, MSS SP 68 & ASME B16.34
- Testing Standard
- API 598, EN12266-1, ISO 5208, MSS SP 68
- Body Style
- Lug, Wafer, Double Flanged
- Body Material
- (DI - ASTM A395 65-45-15), (CS - ASTM A216 WCB), (SS - ASTM A 351 CF8M/CF8/CF3M), Duplex SS
- Disc Material
- (DI - ASTM A216 WCB+SS316 overlay on sealing area), (CS -ASTM A216 WCB+SS316 overlay on sealing area) , CF8M, CF8, CF3M, Duplex SS
- Stem Material
- 316 SS, 17-4 PH, XM-19, Inconel 718, Duplex SS
- Seat Material
- Ultra, PTFE, RPTFE, UHMWPE, Ultra + SS 316, Ultra + Inconel, Ultra + Monel 500, Metal (SS, Inconel)
- Seal Material
- Ultra, PTFE, RPTFE, Graphite
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