Product Images
 |
 |
HF-3300 Series Corrugated PTFE Hose — Finished Assemblies, Raw Convoluted Tubes & Specification Table |
Raw Corrugated PTFE Tubes — Various Sizes & Translucency Levels |
|
|
 |
Corrugated Tubes with Flanged Ends, Curved Sections & Micro-Bore Variants |
Precision 8-Bolt Flange with PTFE Flared Facing & SS304 High-Density Tight Braid Detail |
Product Description
Hengshui Speed Drive Technology Co., Ltd.’s HaoFa Racing corrugated PTFE hose is a high‑grade flexible fluid‑transfer product. Outperforming smooth‑bore counterparts in flexibility, its corrugated inner tube avoids kinking in tight‑space installations while maintaining full pressure and chemical resistance, suited for compact industrial, chemical‑plant and cyclic‑flex service.
Made of virgin extruded PTFE, it features wide chemical compatibility, zero permeation, and ‑65°C‑260°C continuous temperature range.
Available with AN/JIC threads or leak‑proof PTFE‑flare flanged ends, the HF‑3300 series includes 13 inner‑diameter sizes from 3/16” to 2”. Working pressures range 300‑3,383 PSI with burst pressure up to 10,150 PSI.
Key Features
Corrugated PTFE inner tube: annular convolutions offer minimum bend radius, resist kinking and fit confined spaces beyond smooth‑bore hoses
Wide temperature range: continuous‑service from ‑65°C to +260°C, suited for cryogenic and superheated steam conditions
Superior burst pressure: up to 10,150 PSI for AN‑5 size, 15‑25% higher than most rival corrugated hoses
Broad chemical resistance: virgin PTFE liner withstands chemicals, acids, solvents, steam and food media with no swelling or contamination
High‑density 304 SS braid: tight basket weave boosts burst strength and abrasion resistance while preserving flexibility
13 standard sizes: 3/16"‑2" ID, covering lab to heavy‑duty industrial flow applications
Precision flange ends: fixed/floating 8‑bolt flanges with PTFE flare face for leak‑free ANSI/DIN piping connection
Zero permeation: prevents fugitive emissions, compliant with EPA‑regulated VOC service
Technical Specifications
Part No |
Inch |
I.D. mm |
O.D. mm |
W.P. psi |
B.P. psi |
M.B.R. mm |
Temp. |
HF-3304 |
3/16" |
5.0 |
11.0 |
2944 |
8831 |
10 |
-65°C~260°C |
HF-3305 |
1/4" |
6.5 |
12.0 |
3383 |
10150 |
10 |
-65°C~260°C |
HF-3306 |
5/16" |
8.0 |
13.1 |
3093 |
9280 |
15 |
-65°C~260°C |
HF-3308 |
3/8" |
10.0 |
15.5 |
2320 |
6960 |
20 |
-65°C~260°C |
HF-3310 |
1/2" |
13.0 |
19.2 |
2127 |
6380 |
25 |
-65°C~260°C |
HF-3312 |
5/8" |
16.0 |
23.0 |
1933 |
5800 |
50 |
-65°C~260°C |
HF-3314 |
3/4" |
19.0 |
26.8 |
1547 |
4640 |
63 |
-65°C~260°C |
HF-3316 |
7/8" |
22.2 |
30.0 |
1160 |
3480 |
80 |
-65°C~260°C |
HF-3318 |
1" |
25.0 |
33.0 |
1063 |
3190 |
85 |
-65°C~260°C |
HF-3320 |
1-1/8" |
28.0 |
35.5 |
870 |
2610 |
95 |
-65°C~260°C |
HF-3322 |
1-1/4" |
32.0 |
41.5 |
450 |
1349 |
100 |
-65°C~260°C |
HF-3326 |
1-1/2" |
38.0 |
48.0 |
392 |
1175 |
155 |
-65°C~260°C |
HF-3332 |
2" |
50.0 |
62.5 |
300 |
899 |
200 |
-65°C~260°C |
Inner Tube |
Virgin PTFE (Polytetrafluoroethylene), Natural White, Corrugated/Convoluted Profile |
Outer Braid |
304 Stainless Steel Wire, High-Density Tight Basket Weave |
Flange Material |
Carbon Steel or 304/316 Stainless Steel (per application), Precision Machined |
Flange Facing |
PTFE Flared Facing, Integral with Inner Liner |
Flange Bolt Pattern |
8-Bolt, ANSI 150# / DIN PN16 (size-dependent) |
Bend Radius (M.B.R.) |
10 mm (3/16”) to 200 mm (2”) — smallest in class for corrugated PTFE |
Vacuum Rating |
Full vacuum to 10⁻³ Torr at ambient temperature |
Color |
Natural White Inner + Silver Metallic Braid |
Assembly Length |
100 mm to 10 meters standard; longer on request |
MOQ |
30 meters per size (bulk hose); 10 assemblies (finished units) |
Lead Time |
15–25 working days (standard); 30–45 days (custom flanges) |
Certification |
ISO 9001:2015; hydrostatic test certificate per assembly; material certs available |
Materials & Finish
The inner tube uses 100% virgin extruded PTFE resin for superior chemical inertness and temperature performance. Precision thermal convolution forms consistent annular ridges without wall‑thinning, unlike low‑cost mechanical forming which weakens convolution crests.
Its high‑density 304 stainless‑steel basket weave achieves 85‑92% wire coverage. Pre‑flat‑rolled fine filaments (0.15‑0.25 mm) deliver a smooth, snag‑proof outer surface.
Flanged versions adopt precision‑machined carbon‑steel (standard) or 304‑SS flanges for corrosive service, with eight evenly‑spaced bolt holes. The outward‑flared PTFE liner forms an integrated sealing face, removing extra gaskets and avoiding flange crevice corrosion.
Applications
Acid, solvent and corrosive‑fluid transfer in chemical plants
Clean, non‑contaminating transfer for pharmaceutical and food‑grade processes
Steam and hot‑oil transport for industrial heating circuits
Aerospace‑grade & industrial cryogenic service: LNG, liquid nitrogen, LOX
Refinery and petrochemical flexible joints for thermal‑expansion and vibration absorption
Pulp‑paper mill chemical recovery and bleach‑process piping
Ultra‑high‑purity chemical delivery for semiconductor manufacturing
Marine engine cooling and bilge pump discharge lines
Expansion compensators within rigid pipe networks
Corrugated vs Smooth-Bore PTFE — Selection Guide
Choose corrugated PTFE hose when:
（1）Tight bending is required: it delivers 2–5 times smaller bend radii than smooth-bore hose of the same size.
（2）Frequent flexing or vibration occurs: its corrugated structure absorbs vibration and withstands cyclic movement without fatigue.
（3）Full self-draining is needed: the corrugated inner design ensures thorough drainage on vertical and inclined layouts.
Choose smooth-bore PTFE hose when:
（1）Optimal flow and low pressure drop are critical: it reduces pressure drop by 10–20% versus corrugated hose.
（2）Handling viscous or particle-containing fluids: the smooth inner surface prevents clogging effectively.
（3）Installations feature straight runs and mild bends: it offers better cost efficiency with no extreme flexibility required.
Customization Options
Hengshui Speed Drive Technology Co., Ltd. — HaoFa Racing offers full‑range customization. Non‑standard inner diameters up to 4" (100 mm) are available with dedicated tooling.
Braid material can be upgraded to 316 SS for better chloride‑resistance in marine and coastal conditions. Silicone or EPDM outer jackets may be added for heavy abrasion and hot‑splash scenarios.
Custom flange drill patterns support ANSI, DIN, JIS and proprietary bolt circles. Carbon‑filled anti‑static PTFE liners are optional for static dissipation with flammable fluids.
Color‑coded marker sleeves and laser‑etched stainless steel nameplates are also provided. Full custom orders require an MOQ of 50 meters bulk hose or 20 assemblies.
Packing & Logistics
Bulk hose shipped in coils up to 50 meters on wooden spools or in export-grade woven polypropylene bags with PE film wrapping. Finished assemblies individually sealed in PE protective sleeves with flange face protectors and end caps, labeled with part number, size, pressure rating, and serial number, and packed in corrugated master cartons. Large-diameter flanged assemblies shipped in custom wood crates with bracing to prevent flange damage. Port: Qingdao or Tianjin. Incoterms: FOB, CIF, CFR.
Certifications
FAQ
Q: What is the advantage of corrugated over smooth-bore PTFE hose?
A: Its key benefit is superior flexibility. With equal inner diameter, it supports 2‑5× tighter bend radii without kinking. For instance, HF‑3308 (3/8” ID) features a 20 mm minimum bend radius for compact layouts, ideal for crowded piping, expansion joints and repeated‑movement conditions.
Q: Does the corrugated interior affect flow rate?
A: It causes 10‑20% higher pressure drop than smooth‑bore hoses under identical conditions, as a trade‑off for better flexibility. Smooth‑bore versions are recommended if low pressure‑drop is prioritized with simple routing.
Q: What flange standards are available?
A: Standard flanges follow ANSI 150# with integrated PTFE flare faces. DIN PN10/PN16, JIS 10K and custom bolt circles are optional. Fixed and rotating floating‑type flanges are available. The one‑piece PTFE flare acts as built‑in gasket, removing separate gaskets.
Q: Can corrugated PTFE hose be used for steam?
A: Yes. Continuous 260 °C rating covers saturated steam up to ~680 PSI. Keep minimum 20 °C safety margin for steam use since PTFE softens beyond 260 °C. Contact our engineering team for superheated steam over 260 °C for alternatives like 321 stainless steel hose.
Q: What information do you need for a quotation?
A: Submit ID / HF part number, bulk or finished assembly length, end connection specs, medium, operating temperature & working pressure, shipping terms (FOB/CIF). Note fixed or floating flange for flanged assemblies.
EN
