
Rotary Control Valve
These valves control fluid flow through rotary motion, offering fast response and a compact structure.


Double Offset Butterfly Valve
GDO Series
Description
The GDO series features high-performance butterfly valves with a double-offset design. This design allows the valve disc to disengage quickly from the seal when opened, minimizing friction and enhancing sealing performance. Its custom sealing valve seat effectively compensates for wear and reduces friction during sealing, lowering the operating force required and improving control accuracy. These butterfly valves offer a long sealing life and are ideal for handling corrosive gases and liquid media adjustments.
Standard Specification
SIZE RANGE | 2” ~ 48” |
TEMP. RANGE | -50 ~ 815 ℃ |
DESIGN | API 609 / BS 5155 / ANSI B 16.34 |
TEST INSPECTION | API 598 / ISO 5208 |
PRESSURE TEMP' RATINGS | ASME / ANSI B 16.34, 16.24 |
LEAKAGE | ZERO LEAKAGE |
FLUID | WATER / SEA WATER / O2 / CO2 / H2 / COG / LDG / BFG / FOG / MIXED GAS / DUST / STEAM / AIR / HYDROCHLORIC ACID / SULFURIC ACID / NITRIC ACID |
FLANGE RATING | ASME B 16.5 / 16.47 CLASS 150LB, 300LB, 600LB (JIS) 10K, 16K, 20K, 30K, 40K BS 4504 DIN PN10, PN16, PN25, PN40, PN63, PN100 AWWA C207 CLASS B & D, E, F |
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