EX Type
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TECHNICAL SPECIFICATIONS
NOMINAL DIAMETER
NPS 1 (DN25) - NPS 40 (DN1000)
TEMPERATURE RANGE
From Cryogenic(-196℃)
To High temperature(+816℃)
PRESSURE RATING
Up to ASME Class 2500
Other special classes are
# available upon request
MATERIALS
BODY : Carbon Steel, Stainless Steel, Special Material (Duplex, Hastelloy, Monel, Inconel etc.)
BLIND: Stainless Steel, Special Material (Duplex, Hastelloy, Monel, Incone
FUNCTION
Gas & Liquid Perfect Isolation( Zero Leakage )
OPERATION METHOD
Manual Operation
Electric, Pneumatic or Hydraulic Operation
Part & Description
Operating Instruction
1). Before turning the handwheel to change the blind plate position, internal pressure of the valve must be drained and be sure no pressure(Zero).
2). Unlock locking device for turn to handwheel
3). To change the blind plate position, turn the handwheel clockwise until indicator reaches to “Open” mark.
4). When indicator is on “open” mark, change the blind plate position to open or close.
5). After change the blind plate position, turn the handwheel counter-clockwise until indicator reaches to “Close” mark to tighten the seat.
6). Lock locking device for can’t use ahourized person
