NORELL® is pleased to announce the introduction of a new NMR sample tube product line, featuring a glass/ PTFE pressure valve permanently joined to your choice of a wide selection of available 5mm or 3mm O.D. sample tubes.
These pressure tubes facilitate experiments requiring conditions such as pressurized inert atmosphere blanketing, addition of reactive gaseous reagents under pressure, containment of low boiling point solvents or samples at elevated temperatures, and so on.
We recommend that the maximum operating pressure should be limited to 600 kPa (6 bar, 87 psi) when using a thin wall pressure tube, up to 1200 kPa (12 bar, 175 psi) if using a heavy wall pressure tube. (Please see accompanying table for complete details).
The valve accepts 1/16 inch O.D. PTFE tubing, a common laboratory instrumentation pressure line. The required components, a 1/16 inch ferrule and matching compression nut, are included with the valve assembly. The valve easily and quickly connects and disconnects by means of the single compression nut.
All components of the valved pressure tube consist of either glass or polymer, as described in more detail below, allowing safe use in high magnetic field environments.
The sample tube portion, manufactured from ASTM Type 1 Class A glass (Pyrex® or an equivalent) tolerates a maximum temperature of about 230°C, and resists sudden temperature changes, or thermal shock, very well without breakage, but sudden temperature changes should be restricted to a range of 120°C or less.
The pressure valve portion possesses superior chemical and corrosion resistance. The glass shell, also formed from ASTM Type 1 Class A glass, matches that of the sample tube, thereby minimizing breakage of the joint caused by internal strain or thermal shock.
The valve stem, composed of PTFE fluoropolymer (polytetrafluoroethylene) is completely inert and resists virtually all solvents, reactive chemicals and reagents, and deterioration induced by corrosive conditions.
The ferrule, or sealing nut (included with the valve), used to seal the pressure supply tubing to the valve, also displays excellent corrosion and chemical resistance. Constructed from ETFE (ethylene-tetrafluoroethylene) fluoropolymer, this material combines excellent mechanical properties, such as toughness, high impact strength, long flex life, medium stiffness and good abrasion resistance with nearly the same level of chemical resistance shown by the fully fluorinated polymers such as PTFE.
The compression nut (also included with the valve) is machined from PEEK (polyether ether ketone). This material is an advanced, high-performance polymer having excellent mechanical properties, ensuring long life and reliable performance throughout numerous connecting and disconnecting operations. It is a very hard material, with a very high degree of tensile strength, stiffness and dimensional stability, along with excellent chemical resistance.
Due to the hand crafted nature of our pressure valves overall valve assembly length can vary slightly. A typical variance is 1-2mm. Overall length is based on a fully seated operating cap.
*This valve incorporates an advanced seal design that is superior to alternative valves currently available from other manufacturers. A fluoroelastomer o-ring imparts resilience and a high degree of chemical resistance. A PTFE sheath, forming the primary seal, completely covers the fluoroelastomer o-ring, creating the ultimate barrier against aggressive, reactive substances while providing a totally inert surface.
S-3-500-IPV-7
500
178
2.41 (46)
thin
860
8.6
125
S-3-500-IPV-8
500
203
2.41 (46)
thin
860
8.6
125
S-3-600-IPV-7
600
178
2.41 (46)
thin
860
8.6
125
S-3-600-IPV-8
600
203
2.41 (46)
thin
860
8.6
125
S-3-500-IPV-AS
500
133
2.41 (46)
thin
860
8.6
125
S-3-600-IPV-AS
600
133
2.41 (46)
thin
860
8.6
125
S-3-500-IPV-7 Valved THIN Wall NMR Tube For Intermediate Pressure, 3mm, 500 Mhz, 7", 1/Pack
Item no:
S-3-500-IPV-7
MHz:
500
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
2.41 (46)
Tube Wall:
thin
Recommended kPa:
860
Maximum Operating
Pressure (bar):
8.6
Maximum Operating
Pressure (psi):
125
S-3-500-IPV-8 Valved THIN Wall NMR Tube For Intermediate Pressure, 3mm, 500 Mhz, 8", 1/Pack
Item no:
S-3-500-IPV-8
MHz:
500
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
2.41 (46)
Tube Wall:
thin
Recommended kPa:
860
Maximum Operating
Pressure (bar):
8.6
Maximum Operating
Pressure (psi):
125
S-3-600-IPV-7 Valved THIN Wall NMR Tube For Intermediate Pressure, 3mm, 600 Mhz, 7", 1/Pack
Item no:
S-3-600-IPV-7
MHz:
600
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
2.41 (46)
Tube Wall:
thin
Recommended kPa:
860
Maximum Operating
Pressure (bar):
8.6
Maximum Operating
Pressure (psi):
125
S-3-600-IPV-8 Valved THIN Wall NMR Tube For Intermediate Pressure, 3mm, 600 Mhz, 8", 1/Pack
Item no:
S-3-600-IPV-8
MHz:
600
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
2.41 (46)
Tube Wall:
thin
Recommended kPa:
860
Maximum Operating
Pressure (bar):
8.6
Maximum Operating
Pressure (psi):
125
S-3-500-IPV-AS Intermediate Pressure Valved NMR Tube, 3mm, 500 Mhz, automated sampling, thin
Item no:
S-3-500-IPV-AS
MHz:
500
Tube Length (mm):
133
I.D. mm
(Volume μL/cm):
2.41 (46)
Tube Wall:
thin
Recommended kPa:
860
Maximum Operating
Pressure (bar):
8.6
Maximum Operating
Pressure (psi):
125
S-3-600-IPV-AS Intermediate Pressure Valved NMR Tube, 3mm, 600 Mhz, automated sampling, thin
Item no:
S-3-600-IPV-AS
MHz:
600
Tube Length (mm):
133
I.D. mm
(Volume μL/cm):
2.41 (46)
Tube Wall:
thin
Recommended kPa:
860
Maximum Operating
Pressure (bar):
8.6
Maximum Operating
Pressure (psi):
125
S-5-500-IPV-7
500
178
4.20 (138)
thin
600
6
87
S-5-500-MW-IPV-7
500
178
3.43 (92)
medium
900
9
130
S-5-500-HW-IPV-7
500
178
2.20 (38)
heavy
1200
12
175
S-5-500-IPV-8
500
203
4.20 (138)
thin
600
6
87
S-5-500-MW-IPV-8
500
203
3.43 (92)
medium
900
9
130
S-5-500-HW-IPV-8
500
203
2.20 (38)
heavy
1200
12
175
S-5-600-IPV-7
600
178
4.20 (138)
thin
600
6
87
S-5-600-MW-IPV-7
600
178
3.43 (92)
medium
900
9
130
S-5-600-HW-IPV-7
600
178
2.20 (38)
heavy
1200
12
175
S-5-600-IPV-8
600
203
4.20 (138)
thin
600
6
87
S-5-600-MW-IPV-8
600
203
3.43 (92)
medium
900
9
130
S-5-600-HW-IPV-8
600
203
2.20 (38)
heavy
1200
12
175
S-5-500-IPV-AS
500
133
4.20 (138)
thin
600
6
87
S-5-600-IPV-AS
600
133
4.20 (138)
thin
600
6
87
S-5-500-IPV-7 Valved THIN Wall NMR Tube For Intermediate Pressure, 5mm, 500 Mhz, 7", 1/Pack
Item no:
S-5-500-IPV-7
MHz:
500
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
4.20 (138)
Tube Wall:
thin
Recommended kPa:
600
Maximum Operating
Pressure (bar):
6
Maximum Operating
Pressure (psi):
87
S-5-500-MW-IPV-7 Valved MEDIUM Wall NMR Tube For Intermediate Pressure, 5mm, 500 Mhz, 7", 1/Pack
Item no:
S-5-500-MW-IPV-7
MHz:
500
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
3.43 (92)
Tube Wall:
medium
Recommended kPa:
900
Maximum Operating
Pressure (bar):
9
Maximum Operating
Pressure (psi):
130
S-5-500-HW-IPV-7 Valved HEAVY Wall NMR Tube For Intermediate Pressure, 5mm, 500 Mhz, 7", 1/Pack
Item no:
S-5-500-HW-IPV-7
MHz:
500
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
2.20 (38)
Tube Wall:
heavy
Recommended kPa:
1200
Maximum Operating
Pressure (bar):
12
Maximum Operating
Pressure (psi):
175
S-5-500-IPV-8 Valved THIN Wall NMR Tube For Intermediate Pressure, 5mm, 500 Mhz, 8", 1/Pack
Item no:
S-5-500-IPV-8
MHz:
500
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
4.20 (138)
Tube Wall:
thin
Recommended kPa:
600
Maximum Operating
Pressure (bar):
6
Maximum Operating
Pressure (psi):
87
S-5-500-MW-IPV-8 Valved MEDIUM Wall NMR Tube For Intermediate Pressure, 5mm, 500 Mhz, 8", 1/Pack
Item no:
S-5-500-MW-IPV-8
MHz:
500
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
3.43 (92)
Tube Wall:
medium
Recommended kPa:
900
Maximum Operating
Pressure (bar):
9
Maximum Operating
Pressure (psi):
130
S-5-500-HW-IPV-8 Valved HEAVY Wall NMR Tube For Intermediate Pressure, 5mm, 500 Mhz, 8", 1/Pack
Item no:
S-5-500-HW-IPV-8
MHz:
500
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
2.20 (38)
Tube Wall:
heavy
Recommended kPa:
1200
Maximum Operating
Pressure (bar):
12
Maximum Operating
Pressure (psi):
175
S-5-600-IPV-7 Valved THIN Wall NMR Tube For Intermediate Pressure, 5mm, 600 Mhz, 7", 1/Pack
Item no:
S-5-600-IPV-7
MHz:
600
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
4.20 (138)
Tube Wall:
thin
Recommended kPa:
600
Maximum Operating
Pressure (bar):
6
Maximum Operating
Pressure (psi):
87
S-5-600-MW-IPV-7 Valved MEDIUM Wall NMR Tube For Intermediate Pressure, 5mm, 600 Mhz, 7", 1/Pack
Item no:
S-5-600-MW-IPV-7
MHz:
600
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
3.43 (92)
Tube Wall:
medium
Recommended kPa:
900
Maximum Operating
Pressure (bar):
9
Maximum Operating
Pressure (psi):
130
S-5-600-HW-IPV-7 Valved HEAVY Wall NMR Tube For Intermediate Pressure, 5mm, 600 Mhz, 7", 1/Pack
Item no:
S-5-600-HW-IPV-7
MHz:
600
Tube Length (mm):
178
I.D. mm
(Volume μL/cm):
2.20 (38)
Tube Wall:
heavy
Recommended kPa:
1200
Maximum Operating
Pressure (bar):
12
Maximum Operating
Pressure (psi):
175
S-5-600-IPV-8 Valved THIN Wall NMR Tube For Intermediate Pressure, 5mm, 600 Mhz, 8", 1/Pack
Item no:
S-5-600-IPV-8
MHz:
600
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
4.20 (138)
Tube Wall:
thin
Recommended kPa:
600
Maximum Operating
Pressure (bar):
6
Maximum Operating
Pressure (psi):
87
S-5-600-MW-IPV-8 Valved MEDIUM Wall NMR Tube For Intermediate Pressure, 5mm, 600 Mhz, 8", 1/Pack
Item no:
S-5-600-MW-IPV-8
MHz:
600
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
3.43 (92)
Tube Wall:
medium
Recommended kPa:
900
Maximum Operating
Pressure (bar):
9
Maximum Operating
Pressure (psi):
130
S-5-600-HW-IPV-8 Valved HEAVY Wall NMR Tube For Intermediate Pressure, 5mm, 600 Mhz, 8", 1/Pack
Item no:
S-5-600-HW-IPV-8
MHz:
600
Tube Length (mm):
203
I.D. mm
(Volume μL/cm):
2.20 (38)
Tube Wall:
heavy
Recommended kPa:
1200
Maximum Operating
Pressure (bar):
12
Maximum Operating
Pressure (psi):
175
S-5-500-IPV-AS Intermediate Pressure Valved NMR Tube, 5mm, 500 Mhz, automated sampling, thin
Item no:
S-5-500-IPV-AS
MHz:
500
Tube Length (mm):
133
I.D. mm
(Volume μL/cm):
4.20 (138)
Tube Wall:
thin
Recommended kPa:
600
Maximum Operating
Pressure (bar):
6
Maximum Operating
Pressure (psi):
87
S-5-600-IPV-AS Intermediate Pressure Valved NMR Tube, 5mm, 600 Mhz, automated sampling, thin
Item no:
S-5-600-IPV-AS
MHz:
600
Tube Length (mm):
133
I.D. mm
(Volume μL/cm):
4.20 (138)
Tube Wall:
thin
Recommended kPa:
600
Maximum Operating
Pressure (bar):
6
Maximum Operating
Pressure (psi):
87
3mm & 5mm valved NMR tubes for vacuum & reduced pressure. Handle your NMR sample without flame-sealing your tubes. Fluoropolymer covered o-ring eliminates material incompatibilities. Completely greaseless fluoropolymer assembly, which is easy to use and to disassemble for cleaning. Includes female joint for quick attachment to your vacuum rack.
Learn More
We are delighted to present the Extreme Series line of High Pressure Valved NMR Sample Tubes. The Extreme Series remains similar in function, use and pressure capability to the traditional High Pressure Valved NMR Sample Tubes, but the PTFE fluoropolymer valve plug has been upgraded and improved by changes to the design of the o-ring seal.
Learn More
