Dunham Rubber & Belting Corp. - 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.

CONTEF With Wire:

Vacuum Service: 29.9 in./Hg at 70ºF.
For high vacuum applications, CONTEF can be produced with wire on the I.D.

Unit of Measure

Items	350 0070 Contef® Convoluted PTFE Tubing Add To Cart	350 0147 Contef® Convoluted PTFE Tubing Add To Cart	350 0224 Contef® Convoluted PTFE Tubing Add To Cart	350 0301 Contef® Convoluted PTFE Tubing Add To Cart	350 0378 Contef® Convoluted PTFE Tubing Add To Cart
Description	N/A 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.
Type	N/A Without Wire
I.D. (Dim. A)	N/A 1/4 in	N/A 5/16 in	N/A 3/8 in	N/A 1/2 in	N/A 5/8 in
Dim.- B	N/A 3/4 in	N/A 1 in	N/A 1 in	N/A 1 in	N/A 1-1/4 in
Dim. C (Nom.)	N/A 0.015 in	N/A 0.020 in	N/A 0.020 in	N/A 0.020 in	N/A 0.025 in
Dim. D (Ref.)	N/A 0.320 in	N/A 0.414 in	N/A 0.450 in	N/A 0.590 in	N/A 0.660 in
Dim. F (Nom.)	N/A 0.185 in	N/A 0.277 in	N/A 0.307 in	N/A 0.431 in	N/A 0.492 in
Bend Radius	N/A 1/2 in	N/A 3/4 in	N/A 7/8 in	N/A 1-1/4 in	N/A 1-1/2 in
Working Pressure at 70ºF	N/A 62 psi	N/A 56 psi	N/A 52 psi	N/A 40 psi	N/A 35 psi
Burst Pressure at 70ºF	N/A 248 psi	N/A 220 psi	N/A 200 psi	N/A 160 psi	N/A 140 psi
Max. Length	N/A 125 ft	N/A 125 ft	N/A 125 ft	N/A 100 ft	N/A 75 ft
Notes	N/A