| Regulator
Family |
Model
Series |
Gas
Service |
Stages |
Max.
Inlet (psig) |
Output
Range (psig)1 |
Design
Features |
Applications |
| High
Pressure |
|
Non-Corrosive |
1 |
6000 |
0-6000 |
- Brass
or stainless steel barstock bodies
- 316
stainless steel diaphragm or piston (all other
models)
|
- Applications
requiring up to 6000 psig delivery pressure
- Manufacturing
processes, charging of systems, purging
|
| 81-1-1205
Brass |
Non-Corrosive |
1 |
3500 |
0-500 |
| 81-1-110
Brass |
Non-Corrosive |
1 |
6000 |
100-2500 |
| 81-6-110
Stainless Steel |
Non-Corrosive |
1 |
3000 |
100-2500 |
| 81-1-285
Brass |
Non-Corrosive |
1 |
6000 |
200-6000 |
| 81-6-285
Stainless |
Non-Corrosive |
1 |
10,000 |
200-6000 |
| Standard
Corrosive
Service |
3490 |
Corrosives:
HCl, HBr, HF, Cl |
1 |
3000 |
4-650 |
- Economical
nickel plated forged brass body
- Monel,
Kel-F, and Teflon internals for corrosion resistance
|
- Use
with acid forming halogen compounds (HBr, HCl, HF, Cl)
|
| Deluxe
Corrosive
Service |
81-P-558 |
Corrosives:
HCl, HF, HBr, Cl |
1 |
3500 |
0-200 |
- Monel
construction and Monel/Kel-F internals for superior
corrosion resistance
|
- Applications
requiring extended regulator lifespan in severe conditions
|
| High
Flow |
81-1-740 |
Non-Corrosive |
1 |
3500
/ 400 |
0-250 |
- Brass
or stainless steel barstock bodies
- 1/2"
NPTF inlet and outlet ports
|
- Applications
requiring a high flow rate, such as purging of large reactor
or storage vessels
|
| 81-6-740 |
Non-Corrosive |
1 |
3500
/ 400 |
0-250 |
| Low
Pressure |
81-2
General Purpose |
Non-Corrosive
|
2 |
3000 |
0.06-2 |
- Economical
forged brass or high purity brass barstock (3396)
bodies
- Economical
Viton or 316 stainless steel (3396) diaphragms
|
- 8-2:
Applications requiring a reduction of full cylinder pressure
down to a low working pressure, such as fuel supply to
burners or purging low pressure environmental chambers
- 3396:
Applications requiring subatmospheric pressure control
|
3396
Absolute Pressure |
Non-Corrosive |
1 |
3000 |
28"
Hg- 15 psig |
| Back
Pressure |
6342A |
Corrosive
& Non-corrosive |
1 |
100 |
0-100 |
- 316L
Stainless steel bodies
- 316
stainless steel diaphragms (6342A) or 316 stainless steel
piston (6344A)
|
- Used
to relieve system overpressure, like a relief valve
|
| 6344A |
1 |
700 |
50-700 |
| Low
Dead Volume |
|
Non-corrosive |
1 |
3000 |
2-100 |
- 7 cc
internal volume minimizes contamination and adsorption
- 316
stainless steel body & diaphragm
|
- Use
with mixtures containing trace quantities of reactive and/or
adsorptive gases or vapors
- 3590TO
specially cleaned for use with TO-14 calibration standards
|
| |
High
purity |
1 |
3000 |
2-100 |
| Lecture
Bottle2 |
81-1-072 |
Non-corrosive |
1 |
3000 |
2-60 |
- Brass
- Neoprene
or Teflon diaphragm
|
- Use
with lecture bottles.
|
| 81-6-072 |
Corrosive |
1 |
3000 |
1-6 |
| Switchover |
3936 |
Non-corrosive |
1
X 1 |
3000 |
0-200 |
- Single
body design
- Brass
barstock or 316 stainless steel barstock bodies
- 316
stainless steel diaphragms
- Metal
to metal seals
|
- Used
with the Switchover System to provide
continuous gas delivery from two cylinders or two banks of
cylinders
|
| 3946 |
Non-corrosive |
1
X 1 |
3000 |
0-200 |
| Specialty
Line
Regulators |
81-1-740 |
Semi-corrosives:
dichlorosilane, ammonia, amines |
1 |
400 |
0-250 |
- High
purity stainless steel body and diaphragm
|
- High
purity, high flow applications (up to 730 SCFH)
|
3491
Low delivery pressure line
regulator |
Non-corrosives |
1 |
120 |
1
mm Hg -1.8 psig |
- Economical
brass body and butyl rubber
diaphragm
|
- Non-corrosive,
absolute pressure applications
|
| 81-1-08 |
Corrosive/high
purity gases |
1 |
120 |
28"
Hg - 15 psig |
- High
purity stainless steel body and diaphragm
|
- Corrosive/high
purity absolute pressure applications
|
3700
Low pressure line
regulator |
Non-corrosive |
1 |
250 |
2"
wc3- 10 psig |
- Cast
zinc body and natural rubber diaphragm
- "Pancake"
design
|
- Non-corrosive,
low inlet pressure/low delivery pressure applications
|
1The
output pressure ranges shown above include the minimum and
maximum pressures available with respect to the entire model
series. For delivery pressure ranges of individual regulator
models, see appropriate catalog sections.
2Other regulators can be supplied with CGA 170/180
for use with lecture bottles. Consult MEGS technical support
for more information.
3wc=water column |