Screw Tube

Screw Tube (S)

 

Excellent fluid rectification and heat exchange capabilities, and increased heat exchange by using ultra-conductive material. This pliable tube is manufactured to customer-specified lengths, and can be made with silver-soldered metal fittings.

 

Features and Attributes: 

  • Excellent fluid rectification and heat exchange capabilities
  • Pliable tubing
  • Increased heat exchange by using ultra-conductive material
  • Manufactured to customer-specified lengths
  • RoHS Compliant 

Standard Product:

  • Flexible Tube Material: Custom, please view Customizations for available material. 
  • Size: Bore diameter of 3mm ~ 20mm OD are available

Services Available Upon Request: 

  • Can be manufactured with silver-soldered metal fittings.
  • Special Treatments: Teflon coating, chemical polishing, and other services available.

Common Applications: 

  • Optical fiber protection requiring air-tightness
  • Cryogenic heat exchanger for artificial heart and lung devices
  • Heat exchanger in water-cooled computers
  • Delivery pipes for oil, steam, air, and other fluids in vacuum equipment

Stock Level: Non-stock made to order item. General lead time is 6-8 weeks.

 

Model (Part Number)  OD ±0.2mm (inch) Thickness (mm) Minimum Bending Radius ±0.5 (mm) Maximum work Pressure rated (Kg/cm²) Burst pressure (Kg/cm²) Maximum Length (mm) Material
S-3.1 3.1 (0.122) 0.1 to 0.2 9 10 550
(screw/500)
Copper
S-6.0 6.0 (0.236) 0.3 to 0.5 550
(screw/500)
Copper
S-7.5 7.5 (0.295) 0.25 25 8 20 2100 (screw/1800) Stainless Steel
S-8.0 8.0 (0.315) 0.5 1000 (screw/940) Copper
S-9.5 9.52 (0.375) 0.6 1000 (screw/940) Copper
S-10.0 10.0 (0.394) 0.6 1000 (screw/940) Copper
S-11 11.0 (0.433) 0.25 40 8 20 2100 (screw/1600) Stainless Steel
S-12.0 12.7 (0.500) 0.6 to 1.0 1500 (screw/1200) Stainless Steel , Copper
S-15 15.0 (0.591) 0.6 to 1.0 7 18 510 (screw/485) Aluminum
S-15.8 15.88 (0.625) 0.6 to 0.8 1500 (screw/1200) Copper
S-18 18.0 (0.709) 0.3 5 15 2000 (screw/1800) Stainless Steel

 

Attached are the general available options for customization. Please be advised that there may be restrictions based upon size, and application for usage. Please Contact Us for support on your customization requirements!

Please have the below specs available to inquire about custom screw tubing.

  • Model #
  • Thickness Required
  • Material Properties 
  • Length Required
  • Quantity Required

 


 

Contact Us for Samples!

Available Flexible Metal Tube Materials:

Material Grade

 Application

Features Applicable Tube Type
Stainless Steel – SUS304 (Standard)
– SUS303
– SUS316
– SUS430
– General Industrial
– Medicinal
– Rigid
– Does not Rust
– Most tube type
Aluminum – General Industrial
– Medicinal
– Does not Rust
– Anti-Static
– Lightweight but Less Sturdy
– Excellent Thermal Conduction
– Square Lock A
– Interlock Type B
– Screw Tube
Titanium – General Industrial
– Medicinal
– Space Engineering
– Rigid
– Anti-Static
– Lighter than Stainless Steel
– Square Lock A
Bronze Phosphate – C5341 – Noise Counter-Measure – Electromagnetic Compatibility (EMC) – Most tube type
Copper – Noise Counter-Measure – Electromagnetic Compatibility (EMC) – Most tube type
Brass – Noise Counter-Measure – Electromagnetic Compatibility (EMC) – Most tube type
Steel – Galvanized Steel Strip
– SK Material (Hardest Steel)
– General Industrial – Affordable Price
– Heavy
– Rusty
– Generally Needs to be Sheathed
– Most tube type

Sheathing Materials and Information

Adding a resin/rubber coating to a flexible tube provides the following additional benefits:
– Waterproof/resistant
– Oil-proof/resistant
– Attractive appearance
– Additional strength
– Superior insulation

**The following chart displays the most common materials available. Please consult us regarding specifications, minimum lot, delivery date, sheathing combinations, and additional materials available (including any heat or chemical resistance requirements).

 

Material Type (Code) Characteristic Color Resin Feature Surface Appearance
PVC/Polyvinyl Chloride (P) Soft Black (Standard), Gray, White, Ivory, Red, Pink, Orange, Yellow, Yellow-Green, Green, Blue, Clear – Pliable
– Chemical Resistant
– Heat Resistant up to 60°C
– High Oil Resistance
– Glossy
– Matte
– Clear
Semi rigid Black – Slightly Hard
– Smooth Surface
– Chemical Resistant
– Heat Resistant up to 60°C
– Oil Resistant
– Glossy
Flame Resistant Black, Gray, White, Red, Pink, Orange, Yellow, Green, Blue – Pliable
– Chemical Resistant
– Heat Resistant up to 60°C
– High Oil Resistance
– Glossy
Flame Resistant, UL Standard Black – Pliable
– Chemical Resistant
– Heat Resistant up to 105°C
– High Oil Resistance
– Matte
Polyethylene (PE) Low density (LDPE) Black – Harder than the Soft Hard Type
– Smooth Surface
– Chemical Resistant
– Heat Resistant up to 70°C
– High Oil Resistance
– Glossy
Polyester Elastomer
(TEEE)
We can provide soft(ShoreA90) to Semi rigid(ShoreD72) Black Opaque – Pliable
– Weatherproof
– Heat Resistance up to 120°C
– Glossy
Silicone Rubber (Si) Soft Black, Gray – Pliable
– Heat Resistance up to 180°C
– Matte
Fluorocarbon Resin
(FEP) (ETFE) (PFA)
Flame Resistant Black – Less Pliable
– Excellent Chemical and Oil Resistance
– Slippery Non-Stick Surface
– Heat Resistant up to 220°C
– Glossy
Polyurethane (PU) Ester Grade Black – Pliable
– Abrasion Resistant
– Heat Resistant up to 70°C
– Glossy
Ether Grade Black, Ivory – Pliable
– Abrasion Resistant
– Water Soluble
– Heat Resistant up to 70°C
– Glossy
Olefin Elastomer (O) Soft Black – Pliable
– Weatherproof
– Heat Resistant up to 60°C
– Matte

PVC Sheathing Varieties

 

 

Figure Num. Sheathing Variety Part Number Code Features
1 Tight-Fitting KSP- __N – Standard item
– PVC fills the spiral valley to make the finished surface even and smooth.
2 Vacuum Sheathing KSP-__N-B – During processing, sheathing is applied in a vacuum.
– The finished surface maintains the spiral pattern of the coil.
3 Bagging Sheathing KSP-__N-F – Sheathing is applied only on the surface of the tube and the spiral valley contains no PVC. The surface of the sheathing will be completely smooth.
N/A Heat Shrink Sheathing KSP-__N + Shrink tube type# – Please contact us for more details.

Other Services

Double Washing and Chemical Polishing

Double washing:
Double washing treatment (using detergent) can be applied to tubes for high precision applications.

Chemical polishing:
We offer tubes with chemical polishing, providing extra shine for optical applications.
※ Special polishing for semiconductor-quality applications also available.

Instructions on How to Measure Bend Radius: PDF Here