韓國DRASTAR，氣體調(diào)壓閥，Core Valve
韓國DRASTAR，氣體調(diào)壓閥，Core Valve
韓國DRASTAR，氣體調(diào)壓閥，Core Valve
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?Manifolds?Diaphragm?and?Bellows?Valve
DRASTAR?Core?Valve?is?an?advanced?concept?of?valve?that?Drastar?developed?for?ultra-high?purity?specialty?gases?extensively?used?in?the?semiconductor?manufacturing?line,?bulk?gas?line?and?other?facility?lines.?Core?valves?have?integrated?and?improved?all?the?merits?of?diaphragm?valve,?bellows?valve?and?needle?valve?to?best?work?(Drastar?Patent?#10-1510987).
??Surface?finishes?to?AP?or?B.A.?25Ra?E.P.?10Ra?or?5Ra
??Improved?for?micro?and?precise?adjustment
??Pull?and?lock?device?(Drastar’s?patent?#10-1370537)?prevents?the?knob’s?self-turning
??Easy?operation
??Applicable?for?20bar(290psig)?~?max?750bar(11,000psig)
With?DRASTAR’s?patented?(patent?#10-1370537)?“?push?and?lock?type?handle?”,?you?can?operate?it?easily?and?stably;?“l(fā)ocking”?by?pushing?down?the?handle?will?prevent?any?slight?change?of?pre-set?pressure?value,?which?could?possibly?be?caused?by?any?vibration?from?gas?pipeline?or?ambient?applications?and?the?other?way?“unlocking”?by?pulling?it?back?enables?you?to?adjust?the?pressure?value?freely?again.
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?Ordering?Information.
DVS-020-VH-AP4
BASIC
SERIES
NUMBERBODY
MATERIALWORKING
PRESSURECONNECTION
BODY
POLISHING
BODY
SIZE
??20,?50bar
??PCTFE
??250,?500
??750bar
??Vesple??S?=?STS?316L
??Single?melt
??D?=?STS?316L
??Double?melt
??020?=?20bar
??050?=?50bar
??250?=?250bar
??500?=?500bar
??750?=?750bar
?
??VH?=?VCR?Male
??VM?=?VCR?Male
??????????Rotatable
??VF?=?VCR?Female
??????????Rotatable
??TS?=?Tube?Butt
??????????weld
??LO?=?Lock
??NP?=?NPT
??PT?=?PT??AP?=?AP(Ry?≤?25?)
?BA?=?BA(Ry?≤?3.0?)
?EP?=?EP(Ry?≤?0.7?)
???4?=?1/4"
??8?=?3/8"
??2?=?1/2"
??3?=?3/4"
???Specification.
??Ports?Size??1/4"????????1/2"????????3/4"??Cv?Value??0.4??????????1.2??????????2.8?Design?Proof?Pressure?150%?maximun?rated??Grade??AP?(Ry?≤?25?)
??BA?(Ry?≤?3.0?)
??EP?(Ry?≤?0.7?)????Seat?Material(DISK)??PCTFE?/?VESPEL????Body?Material??Stainless?Steel?316L
?????or
??Stainless?Steel?316L?Double?melt??Handle?Material??Aluminum??Max.?Working
??Pressure?Range??20bar,?50bar,?250bar,?500bar,?750bar????Operating??Temperature??-40°C?~?+70°C?(-40°F?~?+165°F)?Standard
??+250°C?~?+500°C?(+328°F?~?+1000°F)?Optional
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