Product

DG Series
DG Series control valve is used to control temperature, pressure and level of the fluid.
It is mainly used where large capacity is required, and the balance-type plug structure allows smooth operation under difficult operating conditions with large pressure difference. Special cages can be applied to reduce noise, and various flow characteristics are provided depending on the shape of the cages.

FEATURES

  • Cage guided throttling trim design is adopted.
  • Balanced plug design.
  • Single bonnet mounting size for all valves and actuators.
  • Lock nut connection between the bonnet and the actuator for quick assembly and disassembly, actuator mounting in any directions.
  • Handwheel, positioner, solenoid valve, limit switch and any other accessories can be provided as an option.

DG GENERAL SPEC.

Valve Body Type & Style Single seated globe body with cage guided throttling trim
Pressure Rating ANSI 125~2500 or JIS 5~63K
Valve Size 1" ~ 16" (25~400mm)
Temperature Range PTFE V-ring : -20~460˚F (-29~238˚C)
Laminated Graphite : -320~800˚F (-195~427˚C)
Body & Bonnet Material ASTM A126 CL.B (FC200)
ASTM A216 WCB (SCPH2)
ASTM A536 65-45-12 (FCD450)
ASTM A351 CF8 or CF8M (SCS13 or SCS14)
Flow Coefficient (Rated CV) 18 to 1200
Flow Characteristics Equal Percentage, Linear, Quick Opening, Parabolic, Noise Reducing, Anti-Cavitation
Leakage Class ANSI Class Ⅳ, Ⅴ, Ⅵ
Rangeabillity 30:1 ~ 50:1
Actuator Size 35 in2, 55 in2, 85 in2, 135 in2, 180 in2
Actuator Action Direct (air to close) / Reverse (air to open)
Spring Range 3~15 psi (0.2~1.0 kg/cm2) / 6~30 psi (0.4~2.0 kg/cm2)