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GC ACCESSORIES |
GAS PURIFICATION ESSENTIALS
Gas Regulators
Overview of Restek’s Ultra-High Purity (UHP) Gas Regulators
• Regulators feature metal-to-metal seals throughout for long-term leak-tightness.
• Metal diaphragm outlet valve ensures gas purity.
• Each regulator is helium leak-test-certifiable to 1x10
-8
scc/sec.
• Temperature range: -40 °C to 60 °C
23134
23179
*Order appropriate male connector, pipe-to-tube fittings.
Dual-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators
• Oxidation-resistant, chrome-plated.
• Most stable outlet pressure control.
• Secondary pressure regulation not needed.
• Most widely used regulator.
• Less internal volume than stainless steel gas regulators.
Ultra-High Purity (UHP) Brass Body Gas Regulators
UHP brass regulators are the best choice when using ultra-high purity carrier gas for
sensitive GC applications using MS, PID, or ECD detection methods. They feature
reduced internal dead-volume, relative to stainless steel bodies. The metal valve
diaphragm ensures leak-free shut-off. Oxidation-resistant chrome plating maintains a
like-new appearance.
Inlet gauge:
0 to 4,000psig (0-27,579kPa)
Outlet assembly:
diaphragm valve,
1
/
4
" tube fitting
Fitting
Outlet Pressure
Outlet Gauge
qty.
cat.#
price
CGA 580 (N
2
He, Ar)
0 to 100psig (0-689kPa) 30" – 0 to 200psig (0-1379kPa)
ea.
21667
CGA 350 (H
2
, P
5
)
0 to 100psig (0-689kPa) 30" – 0 to 200psig (0-1379kPa)
ea.
21668
CGA 590 (Air)
0 to 100psig (0-689kPa) 30" – 0 to 200psig (0-1379kPa)
ea.
21669
Single-Stage Ultra-High Purity Chrome-Plated Brass Gas Regulators
• Oxidation-resistant, chrome-plated.
• Use when there is secondary pressure regulation downstream.
• Identical gas purity protection as with dual-stage gas regulators.
Inlet gauge:
0 to 4,000psig (0-27,579kPa)
Outlet assembly:
diaphragm valve,
1
/
4
" tube fitting
Fitting
Outlet Pressure
Outlet Gauge
qty.
cat.#
price
CGA 580 (N
2
, He, Ar)
0 to 100psig (0-689kPa) 30" – 0 to 200psig (0-1379kPa)
ea.
20646
CGA 350 (H
2
, P
5
)
0 to 100psig (0-689kPa) 30" – 0 to 200psig (0-1379kPa)
ea.
20647
CGA 590 (Air)
0 to 100psig (0-689kPa) 30" – 0 to 200psig (0-1379kPa)
ea.
20648
Ultra-High Purity Chrome-Plated Brass Line Gas Regulator
• Oxidation-resistant, chrome-plated.
• Use where you need to reduce the line pressure by 20 psig (138 kPa) or more.
• Same purity protection as high-pressure cylinder regulators.
Inlet connections:
1
/
4
" FPT
Outlet assembly:
1
/
4
" FPT port
Fitting
Outlet Pressure
Outlet Gauge
qty.
cat.#
price
1
/
4
" female NPT ports* 0-50psig (0-345kPa)
30" - 0 to 100psig (0-689kPa)
ea.
21666
1
/
4
" female NPT ports* 0-100psig (0-689kPa)
30" - 0 to 200psig (0-1379kPa)
ea.
22452
Swagelok® Male Connector, Pipe-to-Tube Fittings
Fitting Type
Size
Similar to
Brass
Stainless Steel
(inches)
Swagelok qty.
cat.#
price
qty.
cat.#
price
Male Connector
1
/
4
" to
1
/
4
" NPT 400-1-4 10-pk.
23134
$44
2-pk.
23184
Male Connector
1
/
8
" to
1
/
4
" NPT 200-1-4 10-pk.
23136
$50
2-pk.
23186
Tube End Reducer
1
/
4
" to
1
/
8
"
200-R-4 5-pk.
23129
$29
2-pk.
23179
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
