Disc Damper

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.

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Body type 600B 600S 610S
Body size 3"(80A) to 60"(1500A) 3"(80A) to 128"(3200A) 6"(150A) to 36"(900A)
Body rating ANSI Class 150 to 900, JIS 5K to 63K ANSI Class 125, JIS 2K to 10K ANSI Class 125, JIS 2K to 10K
Fluid temperature -45 to +600° -45 to +750°
Connections Wafer type Flanged (RF)
Body materials SCPH2/WCB, SCS13A/CF8,
SCS14A/CF8M. etc.
SS400, SUS304, SUS316. etc. SUS304, SUS316 etc.
Disc materials SCS14A/CF8M
Rangeability 60° Opening/15:1
90° Opening/30:1
100:1 to 150:1
Flow characteristics Approximate Eq% (Inherent Characteristics)
Seal ring materials - - SUS316 or Inconel
Seat
Leakage
Standard 90°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 combination 6300RB, 6500RA, 7300RA: Pneumatic Cylinder Actuator
3500RB, 3600RB: Solid State Electronic Actuator
5200TA: Pneumatic Diaphragm Actuator