Item # 350 0455, Contef® Convoluted PTFE Tubing On Dunham Rubber & Belting Corp.

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	Item # 350 0455, Contef® Convoluted PTFE Tubing

Translucent PTFE tubing offers excellent chemical and electrical properties
Available from stock with or without a stainless steel wire encircling the O.D. Wire coil provides increased pressure capability and aids in electrical grounding
Easily flexed - spiral construction allows far greater flexibility than straight wall tubing
Spiral construction also allows for easier cleaning
Made from FDA-sanctioned ingredients
Available to AMS-T-81914/1 (without wire only)
(CONTEF with AMS (Aerospace Material Specifications) is available without wire only and is not stocked)

Notes

CONTEF's helical construction aids in self cleaning when flushed with standard cleaning fluids.

The cuffs (straight ends) are made to accept standard barbed fittings. Hose assemblies made to your specifications are available.

PTFE's color will vary naturally from lot to lot, but the quality and physical properties do not change.

FEP CONTEF for longer continuous lengths - up to 500 ft. - is available through custom order.

CONTEF Without Wire:

Vacuum Service: 29.9 in./Hg at 70ºF.

Convolutions are molded into the tubing and will not cold flow into a straight wall under normal conditions.

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Specifications · Physical Properties

Specifications

Type		Without Wire

I.D. (Dim. A)		3/4 in

Dim. B		1-1/2 in

Dim. C (Nom.)		0.025 in

Dim. D (Ref.)		0.780 in

Dim. F (Nom.)		0.617 in

Bend Radius		1-3/4 in

Working Pressure at 70ºF		30 psi

Burst Pressure at 70ºF		120 psi

Max. Length		75 ft

Physical Properties

Hardness, Shore D

55-65

Min. Tensile Strength

2000 psi

Elongation at Break

300 %

Brittle Temperature¹

<-275 ºF

Max. Operating Temp.²

500 ºF

Max. Cont. Svc. Temp., Zero Pressure³

450 ºF

Notes

Values listed are typical for the material used in manufacture, except where noted, and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for your application.

¹ Temperatures are for standard extruded (non-coiled) tubing.
² Temperatures are for standard extruded (non-coiled) tubing.
³ Temperatures are for standard extruded (non-coiled) tubing.

Item # 350 0455, Contef® Convoluted PTFE Tubing

Type

I.D. (Dim. A)

Dim. B

Dim. C (Nom.)

Dim. D (Ref.)

Dim. F (Nom.)

Bend Radius

Working Pressure at 70ºF

Burst Pressure at 70ºF

Max. Length