DRA100 (non-tied type)
UHP VCR type Pressure Reducing Regulators
- 1/4”, 3/8”, 1/2”, and 3/4” VCR type
- Non-tied diaphragm type
- 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, specialty gases, bulk gas line and other facilities
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DRA200 (Tied type)
UHP VCR Tied Single Stage Pressure Reducing Regulators
- 1/4”, 3/8”, 1/2”, and 3/4” VCR type
- 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 No. 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
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DRA300 (Springless)
UHP VCR Springless Single Stage Pressure Reducing Regulators
- 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)
- Applicable for Semiconductor manufacturing gas line, toxic gases, pyrophoric gases, and high corrosive gases
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DRA700 (Lok type)
Pressure Reducing Regulators
- 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
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DRA500 (Springless)
Single Stage Reducing Regulators
- DRA500 series offers high flow with Cv = 0.5 at 1/4" and Cv=0.5 at 1/2”.
- Inboard Leak Rate to <1 x 10-9 atm cc/sec Helium available.
- Body is made of 316L or VAR (double melt) Stainless Steel with Electropolish to be applicable for corrosive gases.
- Diaphragm: STS 316L or Hastelloy.
- Spring-less type: “wave spring” (DRASTAR patent #10-1191514) used for
conventional spring keeps down possible particle generation by the
spring itself due to fatigue from long-time use and so it is suitable
for applications where ultra high purity and cleaning is needed.
- Inlet pressures are 3000psig(210bar),
2200psig(151bar) or 600psig(42bar) with outlet pressures from 5psig
(0.3bar) up to 150psig (10.3bar).
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