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Superior quality, flame retardant, stress crack resistant, exclusively compounded polyethylene tubing product for pneumatic instrument controls. Marked with a white ink numbering system over the full length of the tubing. Cut the lead end at any number from 1 to 30 for easy identification of individual tubes. Color-coding in up to seven different color stripes is available for instant, easy identification. Bright color stripes are extruded directly into the outside surface of the tubing and provide permanent color-coding that will not wear or fade. When color-coded, the combination of color stripes and printline numbering provides for up to 210 pneumatic circuit lines without duplicating a color stripe-number combination.

Stress Crack Resistance
Resistance to stress cracking is critical. The possibility of tubing failure occurring behind skyscraper walls 10 or 15 years in the future is of great concern. Performance Pipe has developed material compounds and extrusion techniques that ensure tubing with inherently superior stress crack resistance. Performance Pipe's environmental stress crack resistance tests are more stringent than ASTM D 1693. The 48-hour, 70°C accelerated aging test produces crystal developments within the polymer that would otherwise take years to develop. Tubing samples are then bent into a "V" shape and aged in a chemical stress cracking solution at 50°C for 200 hours. Stress cracking tests are conducted on every production lot of tubing. DriscoPlex 2600 Instube® is recertified annually for conformance with ESCR requirements.

Flame Retardant
"Flame Retardant" or "self-extinguishing" means that the tubing material has the ability to retard burning and extinguish the flame once the flame source is removed. Industry tests are used to evaluate the burning characteristics of pneumatic tubing materials. ASTM D 635 Standard Test Method for Rate of Burning and/or Extent/Time of Burning of Plastics in a Horizontal Position test materials for horizontal burn rate. DriscoPlex 2600 Instube® meets or exceeds the requirements of ASTM D 635. DriscoPlex 2600 Instube® is classified by Underwriters Laboratories. Under UL94 tests conducted by UL to analyze vertical burn characteristics of polymeric materials, DriscoPlex 2600 Instube® has a vertical burn rating of 94V-2.

Plenum Rated Pneumatic Tubing
NFPA 90A Standard for the Installation of Air-Conditioning and Ventilating Systems, permits pneumatic tubing for control systems in ceiling cavity plenums (§2-3.10.1) and raised floor plenums (§2-3.10.5) when it is "listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 5 ft (1.5 m) or less when tested in accordance with the specified test method." The specified test method is UL1820 Standard for Safety Fire Test of Pneumatic Tubing for Flame and Smoke Characteristics. When pneumatic tubing is listed in accordance with NFPA 90A requirements, it is a "plenum rated" material

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Please see "Product Information" document below for complete list of product specifications
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Manuals (1)
Outside Diameter:
Length (Feet):
Burst Pressure:
500 psi (> 3.4 MPa)
Pneumatic Instrument Controls
Flame Retardant
Standards Met:
U.L. 1820
Maximum Peak Optical Density:
< 0.5
Average Optical Density:
< 0.15
Maximum Flame Spread Distance:
< 5 ft (< 1.5 m)
Stress Crack Resistance:
> 200 hours non-failure
Brittleness Temperature:
< -104.8°F (< -76°C)
Water Absorption:
5% maximum
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