PTFE Spring Tubing

PTFE, FEP and PFA Spiral Wrap Tubing is designed for flexible wire, cable and hose protection in applications requiring excellent chemical resistance, high temperature performance and mechanical protection. The spiral structure allows easy installation, removal and branch-out access while providing abrasion resistance, insulation and organized cable management. Made from fluoropolymer materials, it is suitable for demanding environments such as industrial equipment, electrical systems, aerospace, automotive and chemical applications.

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Product Detail

Product Overview

Coiled fluoropolymer tubing with straight ends and FEP or PFA material options

Yozonetech supplies spring-shaped fluoropolymer tubing for equipment connections that require a compact coiled form and an extended operating reach. The tube is formed into a helical coil with straight sections at both ends for connection to the equipment.

Choose PTFE, FEP or PFA against the application requirements. The complete size tables below provide 20 configurations across seven metric and inch-designated tube sizes, with operating-distance options and separate coil and tube dimensions.

Send the required tube size, material, operating distance and quantity to ptfetube@yozonetech.cn for a quotation.

Product Benefits

Coiled construction

The spring form provides a compact tubing arrangement with an operating reach suited to equipment layout. Select the coil geometry, end lengths and movement requirements together; the listed reach does not establish a fatigue-life rating.

Chemical resistance

Fluoropolymer material options provide corrosion resistance and resistance to many acids and alkalis. Confirm compatibility with the exact medium, concentration and exposure conditions.

Thermal and aging resistance

The material range offers high- and low-temperature resistance and resistance to aging. Confirm the temperature limit of the finished tube for the selected material, geometry, pressure and connection system.

Insulation and nonstick surface

Fluoropolymer tubing offers electrical insulation and a nonstick surface. Agree any electrical, surface or cleanliness requirements for the selected construction.

Technical Overview

Parameter	Specification
Material options	PTFE, FEP and PFA
Product form	Helically coiled tube with straight end sections
Complete configurations	20 entries across seven tube-size groups
Listed operating distance	0.5-3 m across the complete range; combinations shown below
Straight end lengths	80 mm at each end for every listed configuration
Coil length C	188-533 mm across the tables
Product total length L	348-693 mm across the tables
Coil dimensions	ID D and OD F are separate from tube ID O and OD P
Pressure and temperature limits	Confirm for the exact material, size and assembly

Metric Spring Tube Specifications

Metric size labels are tube ID × OD in mm. Reach is the listed operating distance in m. All dimensional columns except Base len. are in mm. End 1 and End 2 are the straight connection sections; C is the coiled-section length and L is the overall product length.

Size	Reach m	Base len.*	Turns	End 1 mm	End 2 mm	Coil C mm	Total L mm	Coil ID D mm	Coil OD F mm	Tube ID O mm	Tube OD P mm
2 × 4	0.5-1	6	47	80	80	188	348	35	43	2	4
2 × 4	1-1.5	9	72	80	80	288	448	35	43	2	4
2 × 4	1.5-2.5	12	96	80	80	384	544	35	43	2	4
4 × 6	0.5-1	6	36	80	80	216	376	45	57	4	6
4 × 6	1-1.5	9	55	80	80	330	490	45	57	4	6
4 × 6	1.5-2.5	12	74	80	80	444	604	45	57	4	6
6 × 8	0.5-1	6	26	80	80	208	368	63	79	6	8
6 × 8	1-1.5	9	39	80	80	312	472	63	79	6	8
9 × 12	0.5-1	6	19	80	80	228	388	76	100	9	12
9 × 12	1-1.5	9	29	80	80	348	508	76	100	9	12
9 × 12	1.5-2.5	12	39	80	80	468	628	76	100	9	12

* Base len. reproduces the base-tube total-length values 6, 9 and 12. The unit is not stated in the table and must be confirmed with the production specification. These values are distinct from the overall formed product length L.

Understand the Dimensions

Symbol	Meaning
A	First straight end length in the dimensional diagram
B	Second straight end length in the dimensional diagram
C	Axial length of the coiled section
L	Overall axial product length including both straight ends
D	Coil inner diameter
F	Coil outer diameter
O	Tube inner diameter
P	Tube outer diameter

For every listed configuration, the two straight sections are 80 mm each and L = C + 160 mm. The source table labels both straight sections B; End 1 and End 2 above distinguish them, following the A and B arrangement shown in the diagram.

The 6 × 8 mm size has two listed operating-distance options. No third configuration has been assumed. Other sizes and coil arrangements can be reviewed against a drawing.

Inch Designated Spring Tube Specifications

Size is the nominal inch designation. All tube and coil diameters in the table are in mm. The paired catalog dimensions use OD × ID: 1/8 = 3.2 × 1.6 mm; 1/4 = 6.35 × 4.35 mm; 1/2 = 12.7 × 9.53 mm. The tube ID and OD columns state each dimension separately.

Size	Reach m	Base len.*	Turns	End 1 mm	End 2 mm	Coil C mm	Total L mm	Coil ID D mm	Coil OD F mm	Tube ID O mm	Tube OD P mm
1/8	1-1.5	6	80	80	80	256	416	20	26.4	1.6	3.2
1/8	1.5-3	9	121	80	80	378	538	20	26.4	1.6	3.2
1/8	2.5-3	12	162	80	80	518	678	20	26.4	1.6	3.2
1/4	0.5-1	6	36	80	80	229	389	45	57.7	4.35	6.35
1/4	1-1.5	9	55	80	80	349	509	45	57.7	4.35	6.35
1/4	1.5-2.5	12	73	80	80	464	624	45	57.7	4.35	6.35
1/2	0.5-1	6	21	80	80	267	427	76	101.4	9.53	12.7
1/2	1-1.5	9	32	80	80	406	566	76	101.4	9.53	12.7
1/2	1.5-2.5	12	42	80	80	533	693	76	101.4	9.53	12.7

* Base len. values retain the unlabelled source unit and require confirmation. The 1/8 inch operating-distance intervals are preserved as 1-1.5 m, 1.5-3 m and 2.5-3 m, including their overlap.

Select the Coil and Material

Start with the required tube bore and connection outside diameter, then review coil ID and OD, number of turns, formed length and operating distance. Provide clearance requirements, routing and the direction and extent of movement. Avoid selecting by coil diameter alone.

PTFE, FEP and PFA are the listed material options. Confirm which dimensions are available in the selected material, together with resin grade, color, tolerances and connection details. A catalog configuration is not a guarantee of stock availability in every material.

Operating Conditions

Specify the medium, concentration, working pressure or vacuum, normal and maximum temperature and movement cycle requirements. Pressure, burst strength, minimum bend radius, permitted extension and cyclic life must be confirmed for the exact tube and assembly.

Support the straight ends and arrange the coil so that movement does not create torsion, sharp bends at the connection or contact with abrasive edges. The permitted service conditions depend on the whole assembly, including fittings and seals.

Typical Applications

Pharmaceutical and medical equipment

Equipment fluid connections where chemical compatibility, routing and a coiled tube form are useful. Define cleanliness, extractables and required material or product documentation for the specific use.

Electronics and semiconductor equipment

Compact connections in electronic and semiconductor equipment. Specify purity requirements, dimensional clearance and any inspection or electrical requirements.

Mechanical equipment

Connections that require a coiled arrangement and a defined operating reach. Review displacement, frequency, routing and support with the equipment design.

Food processing

Equipment fluid paths where the selected material and finished tube meet the process and contact requirements. Specify the required compliance documentation and cleaning conditions.

Chemical and aerospace equipment

Coiled fluid connections for demanding equipment environments. Confirm fluid compatibility, temperature, pressure, mechanical duty and application-specific qualification.

Custom Spring Tubing

Send a drawing specifying material, tube ID O and OD P, coil ID D and OD F, turns, coil length C, overall length L and straight ends A and B. Include required operating distance, end orientation, connection type, quantity and dimensional tolerances.

Agree an inspection plan for tube dimensions, coil geometry, end lengths, surface condition and any leak, pressure, cleanliness or movement testing. Custom sizes and operating-distance options can be reviewed with your inquiry.

Frequently Asked Questions

Is the coil diameter the same as the tube diameter

No. D and F describe the coil envelope, while O and P describe the hollow tube itself. Specify both sets of dimensions.

Which materials are available

The range includes PTFE, FEP and PFA options. Confirm size availability and the permitted service conditions for the selected material and assembly.

What does operating distance mean

It is the listed reach range for the selected configuration, expressed in meters. It is separate from the formed product length L and does not establish an unlimited extension or cycle-life rating.

Can I change the end lengths or coil dimensions

Custom requirements can be reviewed against your drawing. The common tables use 80 mm at each straight end; include any different end lengths and connection requirements in your inquiry.

Request a Spring Tubing Quote

Send the selected size and operating distance, material, quantity, end connections and service conditions. For a custom coil, include the full dimensional drawing, tolerances and required inspection or documentation.

Email: ptfetube@yozonetech.cn

WhatsApp / Tel / WeChat: +86 13752771911

Website: www.chinaptfetube.com