436
800-356-1688 or 814-353-1300
SAMPLE HANDLING |
GAS SAMPLING
Sample Cyl inder Valves
21401
21400
21402
Sample Cylinder Valves
• Multiple valve configurations, including dip tube and rupture disks.
• Large, durable, Kel-F® seat ensures leak-free operation.
• Temperature range: -40°C to 120°C
Alta-Robbins’ unique valve design incorporates a fully contained soft seat which pro-
vides durability and longer lifetime. Tight shut-off is easily achieved with very low
torque, yet the valve is rugged enough to withstand overtightening.
Multiple valve configurations are available for both high pressure and ultra-high pres-
sure sample cylinders. An outage tube or dip tube provides a headspace above liquefied
gases so that, should expansion occur with an increase in temperature, the pressure is
not dramatically increased. Outage is expressesd as a % of the total cylinder volume,
based on the ratio of the length of headspace to the total length of the cylinder, with a
maximum available outage of 50%. The dip tube is welded directly to the male inlet of
the valve and cut to a length of up to 5.25 inches. Rupture discs function to protect sam-
ple cylinders from over-pressurization by venting to the atmosphere. The pressure
rating on the rupture disc should always be lower than the cylinder.
*To order catalog #21402 (Sulfinert Alta-Robbins Sample Cylinder Valve,
1
/
4
" NPT with Dip Tube), please call
Customer Service at 800-356-1688, ext. 3, or contact your Restek representative. Specify dip tube length or %
outage when ordering (maximum length = 5.25"/ 13.3cm). Note: End of part will not be treated after cutting
tube to length.
Rupture Disc Tee
Unlike other designs, Alta-Robbins rupture disc tee is NOT permanently soldered to the
disc, making the discs replaceable. Discs are easily changed without removing the valve
or tee from the cylinder. These tees are designed to be installed into existing systems to
provide reliable over-pressure protection.
Metering Control Valves
• Reduces pressure between sample cylinder and GC injector.
• Maintains fine metering control.
• Contains Kel-F® seat.
Stainless Steel
Sulfinert Treated
Description
cat.#
price
cat.#
price
3,500 psig DOT Pressure Rating
Metering Control Valve,
1
/
4
" Male NPT x
1
/
4
" Male NPT
26326
26327
Stainless Steel
Sulfinert Treated
Description
cat.#
price
cat.#
price
3,500 psig DOT Pressure Rating
1
/
4
" Male NPT x
1
/
4
" Male NPT
26297
21400
1
/
4
" Male NPT x
1
/
4
" Female NPT
26298
26299
1
/
4
" Male NPT x
1
/
4
" Male Compression
26300
21401
1
/
4
" Male NPT x
1
/
4
" Male NPT w/5.25" Dip Tube*
26301
21402*
1
/
4
" Male NPT x
1
/
4
" Male NPT w/1,800 psi Rupture Disc
26302
26303
1
/
4
" Male NPT x
1
/
4
" Female NPT w/1,800 psi Rupture Disc
26304
26305
Replacement Rupture Disc, 1,800 psig
26320
5,000 psig DOT Pressure Rating
1
/
4
" Male NPT x
1
/
4
" Male NPT
26306
26307
1
/
4
" Male NPT x
1
/
4
" Female NPT
26308
26309
1
/
4
" Male NPT x
1
/
4
" Male Compression
26310
26311
1
/
4
" Male NPT x
1
/
4
" Male NPT w/5.25" Dip Tube*
26312
26313
1
/
4
" Male NPT x
1
/
4
" Male NPT w/2,850 psi Rupture Disc
26314
26315
1
/
4
" Male NPT x
1
/
4
" Female NPT w/2,850 psi Rupture Disc
26316
26317
Replacement Rupture Disc, 2,850 psig
26324
Stainless Steel
Sulfinert Treated
Description
cat.#
price
cat.#
price
1,800 psig DOT Pressure Rating
Rupture Disc Tee,
1
/
4
" Male NPT x
1
/
4
" Female NPT
26318
26319
Replacement Rupture Disc
26320
2,850 psig DOT Pressure Rating
Rupture Disc Tee,
1
/
4
" Male NPT x
1
/
4
" Female NPT
26322
26323
Replacement Rupture Disc
26324
26298
26300
26314
26324
26318
26326
NEW!
NEW!
NEW!
free
literature
Solutions for Gas
Sampling
lit. cat.# PCFL1308
Download your copy
from
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
