UHP VCR Springless Single Stage Pressure Reducing Regulators
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Products Feature
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UHP Low Pressure VCR Type(1/4" 3/8" 1/2" 3/4")
DRA300 Series
is an Springless tied-diaphragm type UHP low pressure reducing regulator with surface finishes to B.A. 25Ra, E.P. 10Ra, or E.P. 5Ra microinch and applicable for gas cabinet for semiconductor manufacturing, specialty gases, valve manifold boxes, and research labs, etc. Inlet pressures are 3000psig (210bar) or 600psig (42bar) and outlet pressures are from 5psig (0.3bar) up to 250psig (17bar).
★ Springless type VCR regulator: By adopting the “flat- wave-shaped ring spring” (DRASTAR patent #10-1191514) instead of conventional spring, particle generation by spring itself due to fatigue from long-time use can be kept down
★ To use more suitably for corrosive gas applications, 316L or 316L VIM+VAR (double melt) available as optional
★ Tied-diaphragm design for positive shut-off and protecting the rupture of diaphragm
★ Surfaces finishes to B.A. 25Ra, E.P. 10 Ra or E.P. 5 Ra microinch
★ Push and lock type handle (DRASTAR patent #10-1086199) mounted
★ Threadless type: enhanced particle prevention by adopting the locking-plate seal system (DRASTAR patent #10-0753280)
★ All works of welding, assembly, test and cleaning are performed in class 100 and class 10 clean-rooms
★ Design proof pressure: 150% of maximum rated
★ Applicable for Semiconductor manufacturing gas line, toxic gases, pyrophoric gases, and high corrosive gases
※ With DRASTAR’s patented (patent #1086199) “push and lock type handle”, you can operate it easily and stably; “locking” 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.
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BASIS
SERIES
NUMBER
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BODY MATERIAL &
SURFACE FINISH
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OUTLET
PRESSURE
RANGE
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DIAPHRAGM
MATERIAL
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MAX.
INLET
PRESSURE
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DRA300
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A = 316L B.A -------------- 25Ra
B = 316L E.P -------------- 10Ra
C = 316L E.P(P.E.P) ------- 5Ra
D = 316L VAR E.P ---------- 10Ra
E = 316L VAR E.P(P.E.P)---- 5Ra
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025 = 1-25psi (.1-1.7bar)
050 = 1-50psi (.1-3.5bar)
100 = 1-100psi (.1-7bar)
130 = 1-130psi (.2-9bar)
150 = 1-150psi (.2-10.3bar)
250 = 1-250psi (.2-17bar)
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S = STS 316L
H = Hastelloy-C
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H = 3000psi(210bar)
L = 600psi(42bar)
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SEAT
MATERIAL
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FLOW
CAPACITY
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INLET
OUTLET
PORTS SIZE
Type "A" ± 1.0mm
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GAUGE
PORTS
OPTIONS
Gauge Ports
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P = PCTFE
T = Teflon
V = Vespel
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S = Cv 0.06
1/4" Standard
O = Cv 0.2
1/4" Optional
S = Cv 0.2
3/8" Standard
S = Cv 0.5
1/2" Standard
O = Cv 1.0
1/2" Optional
S = Cv 1.2
3/4" Standard
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4HP = 1/4" H.P.I.C
4MS = 1/4" Male Swivel ---- 94mm
4FS = 1/4" Female Swivel -- 94mm
4FL = 1/4" Female Swivel -- 114mm
4ML = 1/4" Male Swivel ---- 114mm
8MS = 3/8" Male Swivel ---- 120mm
8FS = 3/8" Female Swivel -- 120mm
2MS = 1/2" Male Swivel ---- 140mm
2FS = 1/2" Female Swivel -- 140mm
2ML = 1/2" Male Swivel ---- 180mm
2FL = 1/2" Female Swivel -- 180mm
3MS = 3/4" Male Swivel ---- 160mm
3FS = 3/4" Female Swivel -- 160mm
4IMF = In 1/4" Male
Out 1/4" Female ----- 94mm
4IFM = In 1/4" Female
Out 1/4" Male ------- 94mm
2IMF = In 1/2" Male
Out 1/2" Female ----- 140mm
2IFM = In 1/2" Female
Out 1/2" Male ------- 140mm
2IMFL = In 1/2" Male
Out 1/2" Female ----- 180mm
2IFML = In 1/2" Female
Out 1/2" Male ------- 180mm
4TS = 1/4" Tube Stubs ---- 94mm
8TS = 3/8" Tube Stubs ---- 94mm
2TS = 1/2" Tube Stubs ---- 120mm
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G0S = None ------------- 0
G1S = 1/4" H.P.I.C ------- 1
G2S = 1/4" H.P.I.C ------- 2
G2B = 1/4" H.P.I.C ------- 2
M1S = 1/4" Male Swivel -- 1
M2S = 1/4" Male Swivel -- 2
M2B = 1/4" Male Swivel -- 2
F1S = 1/4" Femle Swivel -- 1
F2S = 1/4" Femle Swivel -- 2
F2B = 1/4" Femle Swivel -- 2
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Specification
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Ports
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DRA300-A100S-xxx-4MS-GxS 1/4" Male
DRA300-A100S-xxx-4FS-GxS 1/4" Female
DRA300-A100S-xxx-8MS-GxS 3/8" Male
DRA300-A100S-xxx-8FS-GxS 3/8" Female
DRA300-A100S-xxx-2MS-GxS 1/2" Male
DRA300-A100S-xxx-2FS-GxS 1/2" Female
DRA300-A100S-xxx-3MS-GxS 3/4" Male
DRA300-A100S-xxx-3FS-GxS 3/4" Female
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Design Pressure
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150% maximum rated
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Leak Rate
Certification
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to 1 x 10
-9
atm cc/sec Helium available.
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Body Materials
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DRA300-A100x-xxx-xxS-GxS 316L B.A ------------------ 25Ra
DRA300-B100x-xxx-xxS-GxS 316L E.P ------------------ 10Ra
DRA300-C100x-xxx-xxS-GxS 316L E.P(P.E.P) ------------5Ra
DRA300-D100x-xxx-xxS-GxS 316L VAR E.P ---------------10Ra
DRA300-E100x-xxx-xxS-GxS 316L VAR(P.E.P) ------------ 5Ra
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Bonnet Material
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Nickel Plated Brass (Stainless steel 316L Optional)
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Diaphragm
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DRA300-x100S-xxx-xxS-GxS STS 316L
DRA300-x100H-xxx-xxS-GxS Hastelloy-C22
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Main Valve
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DRA300-A100S-xxx-xxS-GxS Stainless steel 316L Standard
DRA300-B100H-xxx-xxS-GxS Hastelloy-C22 Optional
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Valve Spring
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Valve Seat
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DRA300-B100S-xPx-xxS-GxS PCTFE
DRA300-B100S-xTx-xxS-GxS Teflon
DRA300-B100S-xVx-xxS-GxS Vespel
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Inlet Pressure
Ranges
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DRA300-A100S-Hxx-xxS-GxS 3000psi(210bar)
DRA300-A100S-Lxx-xxS-GxS 600psi(42bar)
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Outlet Pressure
Ranges
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DRA300-x025x-xxS-xMS-GxS 25psi(1.7bar)
DRA300-x050x-xxS-xMS-GxS 50psi(3.4bar)
DRA300-x100x-xxS-xMS-GxS 100psi(7bar)
DRA300-x250x-xxS-xMS-GxS 250psi(17bar)
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Operating
Temperature
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PCTFE -40°C ~ +60°C (-40°F ~ +140°F)
Teflon -40°C ~ +70°C (-40°F ~ +165°F)
Vespel -40°C ~ +170°C (-40°F ~ +350°F)
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Flow Capacity
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DRA300-x100x-xxS-4MS-GxS 1/4" Cv=0.06
DRA300-x100x-xxO-4MS-GxS 1/4" Cv=0.2
DRA300-x100x-xxS-8MS-GxS 3/8" Cv=0.2
DRA300-x100x-xxS-2MS-GxS 1/2" Cv=0.5
DRA300-x100x-xxO-2MS-GxS 1/2" Cv=1.2
DRA300-x100x-xxS-3MS-GxS 3/4" Cv=1.2
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Recommendations
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Each product is manufactured taking into consideration of the best safety and easy manipulation. However in order to use the regulator in most safe, effective, precise and smooth way and prolong its life time, you are recommended to use the actual pressure within the range of 25% ~ 75% of its rated pressure.
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[ Unit conversion program ]
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