KOSO BUTTERFLY VALVES600B: Butterfly Valves/Casting Body type
600S: Butterfly Valves/Fabricated Body type
610S: RING-SEAL type Butterfly Valves
Metal seal ring with a cut-end is set around the disc.
This construction realizes low seating force and better shut off performance. It also provides more resistance against very high operating temperature. The seat ring's thermal expansion with fluid temperature fluctuation makes the valve best suited to high-temperature fluid service.
SpecificationsBody type600B600S610SBody size3Inch(80A) to 60Inch(1500A)3Inch(80A) to 128Inch(3200A)6Inch(150A) to 36Inch(900A)Body ratingANSI Class 150 to 900, JIS 5K to 63KANSI Class 125, JIS 2K to 10KANSI Class 125, JIS 2K to 10KFluid temperature-45 to +600°-45 to +750°ConnectionsWafer typeFlanged (RF)Body materialsSCPH2/WCB, SCS13A/CF8,
SCS14A/CF8M. etc.SS400, SUS304, SUS316. etc.SUS304, SUS316 etc.Disc materialsSCS14A/CF8MRangeability60° Opening/15:1
90° Opening/30:1100:1 to 150:1Flow characteristicsApproximate Eq% (Inherent Characteristics)Seal ring materials--SUS316 or InconelSeat
LeakageStandard90°Cv × 2.5 to 0.5%90° Cv × 5.0 to 1.5%90°Cv × 2.5 to 0.1%15° seal-90° Cv × 0.5 to 0.2%-Back seat-90° Cv × 2.0 to 1.0%-Actuator combination6300RB, 6500RA, 7300RA: Pneumatic Cylinder Actuator
3500RB, 3600RB: Solid State Electronic Actuator
5200TA: Pneumatic Diaphragm Actuator
