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Smoothbore PTFE Convoluted Tubing
Product Overview
A smooth inner bore and an externally convoluted profile
A smooth fluid path with external corrugations for flexible connections
Yozonetech reviews PTFE smoothbore externally convoluted tubing requirements for fluid-transfer assemblies that need a smooth inner surface and flexible routing. The liner combines a smooth internal bore with a corrugated outer profile; reinforcement and fittings are selected as part of the complete hose specification.
This construction is suited to inquiries where internal flow clearance, drainage and access for cleaning matter alongside flexibility. Specify the actual bore, outside envelope, reinforcement and service conditions so the tube can be matched to your equipment.
Request a quote: ptfetube@yozonetech.cn
Construction illustration showing the smooth inner bore, convoluted outer profile and stainless steel braid
Product Benefits
Smooth internal fluid path
The inner bore avoids the deep internal corrugation pockets of a conventional convoluted liner. This supports fluid transfer and cleaning access; drainage and cleaning performance depend on the fluid, routing and end fittings.
Flexibility from the external profile
External convolutions allow the liner geometry to flex. Confirm the bend radius and support for the selected size and reinforcement, including the space required near the end fittings.
PTFE fluid contact surface
Specify PTFE for the required chemical exposure and temperature. Include every wetted component in the compatibility review and define any cleanliness or material-documentation needs.
Reinforcement and connection review
The supplied illustration shows stainless steel braid. Agree the braid material, hose dimensions, end fittings and any additional support against the pressure, vacuum and mechanical duty.
Technical Specifications
| Parámetro | Specification to be agreed |
| Liner material | PTFE; grade, color and any conductive requirement to be specified |
| Internal geometry | Smooth bore through the flexible section |
| External geometry | Convoluted / corrugated PTFE outer profile |
| Reinforcement | Stainless steel braid is shown in the reference illustration; grade and construction to be confirmed |
| Bore and outside diameter | State liner ID, liner maximum OD and finished hose OD separately |
| Grosor de la pared | Specify the minimum wall and the measurement location for the profiled liner |
| Longitud | Cut length or assembly length, with the measuring convention stated |
| Operating pressure and vacuum | Confirm for the exact liner, reinforcement, temperature and fittings |
| Bend and movement limits | Agree minimum bend radius, installation conditions and cyclic duty |
| End connections | Specify fitting type, material, sealing face, bore and assembly method |
| Inspection and documents | Agree dimensional, surface, leak and any application-specific testing |
Size Selection and Ordering Dimensions
Order by the complete construction rather than a nominal bore alone. Provide the following dimensions on the inquiry drawing so the liner, reinforcement and connectors can be reviewed together.
| Drawing field | Required information |
| Nominal size | State the size designation and whether it refers to the hose bore or fitting interface |
| Liner ID | Required fluid bore and tolerance; identify any allowable bore reduction |
| Liner maximum OD | Largest dimension across the external corrugation peaks |
| Finished hose OD | Outside envelope including braid and any specified cover |
| Wall and profile | Minimum wall, corrugation pitch, depth and active flexible length |
| Assembly length | Overall length and the end-to-end or sealing-face measuring convention |
| Fitting dimensions | Connection standard, fitting bore, sealing face and orientation |
| Routing envelope | Bend radius, available clearance, supports and motion direction |
An unreinforced liner and a braided hose assembly require separate performance specifications. Pressure, vacuum and dimensional values are confirmed for the quoted construction.
Aplicaciones típicas
Chemical and industrial fluid transfer
Flexible connections where the fluid-contact material, smooth bore and assembly construction meet the chemical and mechanical duty.
Equipment with cleaning and drainage requirements
Fluid lines where a smooth bore can support cleaning access and drainage. Define fluid viscosity, cleaning medium, temperature and installation slope as appropriate.
Food pharmaceutical and laboratory equipment
Applications can be reviewed against the required contact and cleanliness specifications. Agree material qualification and finished-assembly documentation for the actual use.
Compact equipment connections
Routed hose assemblies where flexibility, connector geometry and internal clearance must be considered together. Specify any repeated movement and required life.
Custom Production and Inspection
Provide liner ID, liner OD, finished OD, minimum wall, profile dimensions, reinforcement, cut or assembly length, fittings and tolerances. Include the fluid and concentration, normal and maximum temperature, pressure or vacuum, cleaning process and required quantity.
Agree material identification, dimensional inspection, surface checks, fitting retention and leak or pressure testing for the ordered assembly. Define vacuum, electrical continuity, cleanliness or movement tests where the application requires them.
Preguntas frecuentes
How does this differ from conventional PTFE corrugated tubing
This construction has a smooth internal bore with an externally convoluted profile. Conventional corrugated tubing has a corrugated internal passage. Specify the bore profile explicitly on the drawing.
Does stainless steel braid establish the pressure rating
No. The liner, reinforcement, temperature, end fittings and assembly method determine the finished hose performance. Request the applicable rating and agreed tests for the supplied construction.
Is the finished assembly compliant with SAE 100 R14
The reference image includes an SAE marking, but an image does not establish conformity of the supplied hose. State the required standard and request matching product documentation with the quotation.
Can I use the ordinary corrugated tube size table
Use dimensions confirmed for this smoothbore construction. Conventional corrugated-tube dimensions do not define the smooth bore, external profile, braid envelope or fitting system of this product.
Request a Quote
Send your drawing or required size, quantity and finished length. Include the fluid, concentration, normal and maximum temperature, pressure or vacuum, routing and end connections, together with inspection and documentation requirements.
Correo electrónico: ptfetube@yozonetech.cn
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