Restek-2015

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1-800-356-1688 or 1-814-353-1300 455
SAMPLE HANDLING | GAS SAMPLING
Sample Cylinder Valves
Metering Control Valves (Stainless Steel & Sulfinert®-Treated)
• Reduces pressure between sample cylinder and GC injector.
• Maintains fine metering control.
• Contains Kel-F® seat.
26326
*To order a sample cylinder valve with dip tube, please call Restek® 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"/ 13.3 cm).
Note: End of part will not be treated after cutting tube to length.
Sample Cylinder Valves (Stainless Steel & Sulfinert®-Treated)
• Multiple valve configurations, including dip tube and rupture discs.
• Large, durable, Kel-F® seat ensures leak-free operation.
• Temperature range: –40 °C to 120 °C
• 303 stainless steel.
Alta-Robbins’ unique valve design incorporates a fully contained soft seat that 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 expressed as a percent of the total cylinder vol-
ume, 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 sample cylinders from over-pressurization by venting to the atmosphere. The
pressure rating on the rupture disc should always be lower than the cylinder.
Rupture Disc Tee (Stainless Steel & Sulfinert®-Treated)
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.
21400
26298 26300
21401
21402
26314
26318
26324
26323
Stainless Steel Sulfinert-Treated
Description cat.# price cat.# price
3,500 psig (24,132 kPa) 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 (12,411 kPa) Rupture Disc 26302 26303
1/4" Male NPT x 1/4" Female NPT w/1,800 psi (12,411 kPa) Rupture Disc 26304 26305
Replacement Rupture Disc, 1,800 psig (12,411 kPa) 26320 —
5,000 psig (34,474 kPa) 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 (19,650 kPa) Rupture Disc 26314 26315
1/4" Male NPT x 1/4" Female NPT w/2,850 psi (19,650 kPa) Rupture Disc 26316 26317
Replacement Rupture Disc, 2,850 psig (19,650 kPa) 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 —
Stainless Steel Sulfinert-Treated
Description cat.# price cat.# price
3,500 psig (24,132 kPa) DOT Pressure Rating
Metering Control Valve, 1/4" Male NPT x 1/4" Male NPT 26326 26327