Aeroquip PTFE Hose
Everflex
Aeroquip PTFE Hose
Aeroquip PTFE hoses, now know as Danfoss EverFlex are the premier choice for hose products made from premium grade Teflon™ fluoropolymer for use in truck, chemical, hot melt, steam, packaging, paint, machinery, and many other demanding applications.
Of all the hose materials, PTFE hoses probably have the best chemical resistance - the down side is that they are relatively fragile compared to the hydraulic hoses and lack the working pressures - they can also be susceptable to static discharge.
There are two main types of PTFE - smooth bore (which can tend to kink on tight bends) and convoluted (ribbed) which can affect flow but is more flexible.
When is a dash size not a bore size? ….. When it's a PTFE smooth bore hose.
| Dash Size | Hose ID | 2807 Example Bore | Part No. | ||
| -3 | 3.6mm | 1/8" PTFE HOSE DASH3 | 2807-3 | ||
| -4 | 4.8mm | 3/16" PTFE HOSE DASH4 | 2807-4 | ||
| -5 | 6.6mm | 1/4" PTFE HOSE DASH5 | 2807-5 | ||
| -6 | 8.1mm | 5/16" PTFE HOSE DASH6 | 2807-6 | ||
| -8 | 10.7mm | 13/32" PTFE HOSE DASH8 | 2807-8 | ||
| -10 | 13.0mm | 1/2" PTFE HOSE DASH10 | 2807-10 | ||
| -12 | 16.3mm | 5/8" PTFE HOSE DASH12 | 2807-12 | ||
| -16 | 22.4mm | 7/8" PTFE HOSE DASH16 | 2807-16 | ||
| -20 | 28.4mm | 1.1/8" PTFE HOSE DASH20 | 2807-20 | ||
General Application
Low pressure, temperature and fluid compatibility scenarios. Also automotive applications - there's nothing finer than and silver braided hose under the bonnet.
Specialist PTFE hoses are also used in Aerospace, but this is outside our scope of supply.
Hose Fittings
Historically the PTFE hose had "Supergem" re-usable fittings and this is the core of Carlton Hydraulics' stock .
Crimp fittings are also available on special order.
PTFE Reusable Fitting Types:
BSPP, BSPT, JIC, NPT, Metric
- Smooth Bore – 2807 Dash 3 to 20
- Smooth Bore – FC465 Dash 3 to 20
- Convoluted – FC363 Dash 10 to 24
PTFE Hose
Smooth Bore
FC465 Dash 3 to 20
(conductive)
(1/8" to 1,1/8")
Conductive Teflon™ fluoropolymer inner tube, single layer of 304 stainless steel braid.
Convoluted
FC363 Dash 10 to 24
(non-conductive)
(true bore 5/8" to 1,1/2")
Convoluted PTFE inner tube, single layer of 304 stainless steel braid.
Use crimp fittings - available to order.
PTFE Hose "super gem" Reusable Assembly Tips:
Step 1
Wrap hose with masking tape at cut-off point and cut squarly to length at taped area. Remove tape and trim any loose wires flush with tube stock.
Any burrs on the bore of the tube stock should be removed with a knife. Clean the hose bore. Sometimes wire braid will tend to “neck down” on one end and flare out, on the opposite end.
This is a characteristic of wire braid hose and can be used to an advantage in the assembly of the “super gem”® sockets. Slip two sockets back to back over the “necked down” end of the hose.
Step 2
a. Push the sleeve over the end of the tube and under the wire braid by hand. Complete positioning of the sleeve by pushing the hose end against a flat surface. Visually inspect to see that tube stock butts against the inside shoulder of the sleeve.
b. Set the sleeve barbs into the PTFE tube by working the hose bore over the nipple into the end of the sleeve and tube.
Step 3
Lubricate nipple and socket threads. For stainless steel fittings, use a molydisulfide base lubricant (e.g., Molykote* Type G), lubricants containing chloride are not recommended. Other material
combinations use standard petroleum lubricants.
Hold the nipple with hex in vice. Push hose over nipple with twisting motion until seated against nipple chamfer. Push socket forward and hand start threading of socket to nipple.
Step 4
Wrench tighten nipple hex until clearance with socket hex is 0,8 mm [1/32"] or less. Tighten further to align corners of nipple and socket hexes.
To disassemble: Unscrew and remove nipple; slide socket back on hose by tapping against flat surface; remove sleeve with pliers. New sleeves are recommended upon reuse of the fitting.
* Molykote Type G is a registered trademark of the Alpha Molykote Corporation.
