Lock type Pressure Reducing Regulators
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 Products Feature |
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Lock type Low Pressure Regulator(1/4” 3/8” 1/2” 3/4”)
DRA700 Series is a lock-type UHP low pressure reducing regulator with B.A. 25Ra surface finish and applicable for semiconductor hook-up line and bulk gas line, etc. Inlet pressures are 3000psig (210bar) or 600psig (42bar) and outlet pressure are from 5psig (0.3 bar) up to 250psig (17bar).
★ Lock type economical regulator
★ Surfaces finishes to B.A. 25Ra 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 hook-up line of Semiconductor process
※ 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 |
BODY
MATERIAL |
OUTLET
PRESSURE
RANGE |
MAX.
INLET
PRESSURE |
DRA700 |
A = 316L B.A ------- 25Ra
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025 = 1-25psi (.1-1.7bar)
050 = 1-50psi (.1-3.5bar)
100 = 1-100psi (.1-7bar)
250 = 1-250psi (.2-17bar)
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H = 3000psi(210bar)
L = 600psi(42bar) | | |
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SEAT
MATERIAL |
FLOW
CAPACITY |
INLET
OUTLET
PORTS SIZE
Type "A" ± 3.0mm |
GAUGE
PORTS
OPTIONS
Gauge Ports |
P = PCTFE
T = Teflon |
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 |
4L = 1/4" Lock - 105mm
8L = 3/8" Lock - 115mm
2L = 1/2" Lock - 150mm
3L = 3/4" Lock - 150mm
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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 |
DRA700-A100-xxx-4L-GxS 1/4" Lock type
DRA700-A100-xxx-8L-GxS 3/8" Lock type
DRA700-A100-xxx-2L-GxS 1/2" Lock type
DRA700-A100-xxx-3L-GxS 3/4" Lock type |
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Design Pressure |
150% maximun rated |
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Leak Rate
Certification |
to 1 x 10 -9 atm cc/sec Helium available. |
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Body Materials |
DRA700 Series (316L Standard) B.A ---------- 25Ra |
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Bonnet Material |
Nickel Plated Brass (Stainless steel 316L Optional) |
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Diaphragm |
Stainless steel 316L |
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Main Valve |
Stainless steel 316L |
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Valve Spring |
Stainless steel 316L |
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Valve Seat |
DRA700-A100-xPx-xL-GxS PCTFE
DRA700-A100-xTx-xL-GxS Teflon |
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Inlet Pressure
Ranges |
DRA700-A100-Hxx-xL-GxS 3000psi(210bar)
DRA700-A100-Lxx-xL-GxS 600psi(42bar) |
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Outlet Pressure
Ranges |
DRA700-A025-xxS-xL-GxS 25psi(1.7bar)
DRA700-A050-xxS-xL-GxS 50psi(3.4bar)
DRA700-A100-xxS-xL-GxS 100psi(7bar)
DRA700-A250-xxS-xL-GxS 250psi(17bar) |
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Operating
Temperature |
PCTFE -40°C ~ +60°C (-40°F ~ +140°F)
Teflon -40°C ~ +70°C (-40°F ~ +165°F) |
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Flow Capacity |
DRA700-A100x-xxS-4L-GxS 1/4" Cv=0.06
DRA700-A100x-xxO-4L-GxS 1/4" Cv=0.2
DRA700-A100x-xxS-8L-GxS 3/8" Cv=0.2
DRA700-A100x-xxS-2L-GxS 1/2" Cv=0.5
DRA700-A100x-xxO-2L-GxS 1/2" Cv=1.2
DRA700-A100x-xxS-3L-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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